http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/exceptions/SystemException.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/exceptions/SystemException.java 
b/vxquery-core/src/main/java/org/apache/vxquery/exceptions/SystemException.java
index 697d76c..39b12b9 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/exceptions/SystemException.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/exceptions/SystemException.java
@@ -65,4 +65,4 @@ public class SystemException extends Exception {
     public ErrorCode getCode() {
         return code;
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/exceptions/SystemExceptionFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/exceptions/SystemExceptionFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/exceptions/SystemExceptionFactory.java
index d26f5af..15dcc61 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/exceptions/SystemExceptionFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/exceptions/SystemExceptionFactory.java
@@ -24,4 +24,4 @@ public interface SystemExceptionFactory {
     public SystemException createException(ErrorCode eCode);
 
     public SystemException createException(ErrorCode eCode, SourceLocation 
location);
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/exceptions/VXQueryDataException.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/exceptions/VXQueryDataException.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/exceptions/VXQueryDataException.java
index 79a37af..e41872c 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/exceptions/VXQueryDataException.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/exceptions/VXQueryDataException.java
@@ -18,7 +18,7 @@ package org.apache.vxquery.exceptions;
 
 import java.io.File;
 
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import org.apache.hyracks.api.exceptions.HyracksDataException;
 
 public class VXQueryDataException extends HyracksDataException {
 

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/exceptions/WarningReporter.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/exceptions/WarningReporter.java 
b/vxquery-core/src/main/java/org/apache/vxquery/exceptions/WarningReporter.java
index 419b6ed..0e7da5d 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/exceptions/WarningReporter.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/exceptions/WarningReporter.java
@@ -18,4 +18,4 @@ package org.apache.vxquery.exceptions;
 
 public interface WarningReporter {
     public void reportWarning(Exception e);
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/functions/BuiltinFunction.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/functions/BuiltinFunction.java 
b/vxquery-core/src/main/java/org/apache/vxquery/functions/BuiltinFunction.java
index c85be26..1b002be 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/functions/BuiltinFunction.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/functions/BuiltinFunction.java
@@ -34,4 +34,4 @@ public class BuiltinFunction extends Function {
     public boolean useContextImplicitly() {
         return implicitContext;
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/functions/ExternalFunction.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/functions/ExternalFunction.java 
b/vxquery-core/src/main/java/org/apache/vxquery/functions/ExternalFunction.java
index 9d0891d..e80826d 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/functions/ExternalFunction.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/functions/ExternalFunction.java
@@ -32,4 +32,4 @@ public class ExternalFunction extends Function {
     public boolean useContextImplicitly() {
         return false;
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/functions/Function.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/functions/Function.java 
b/vxquery-core/src/main/java/org/apache/vxquery/functions/Function.java
index c725743..1305536 100644
--- a/vxquery-core/src/main/java/org/apache/vxquery/functions/Function.java
+++ b/vxquery-core/src/main/java/org/apache/vxquery/functions/Function.java
@@ -26,11 +26,11 @@ import 
org.apache.vxquery.compiler.rewriter.rules.propagationpolicies.uniquenode
 import org.apache.vxquery.exceptions.ErrorCode;
 import org.apache.vxquery.exceptions.SystemException;
 
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IAggregateEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IUnnestingEvaluatorFactory;
+import org.apache.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import org.apache.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
+import org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluatorFactory;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.algebricks.runtime.base.IUnnestingEvaluatorFactory;
 
 public abstract class Function implements IFunctionInfo {
     private static final String VXQUERY = "vxquery";

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/functions/Operator.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/functions/Operator.java 
b/vxquery-core/src/main/java/org/apache/vxquery/functions/Operator.java
index 1819129..ddce15c 100644
--- a/vxquery-core/src/main/java/org/apache/vxquery/functions/Operator.java
+++ b/vxquery-core/src/main/java/org/apache/vxquery/functions/Operator.java
@@ -32,4 +32,4 @@ public class Operator extends Function {
     public boolean useContextImplicitly() {
         return false;
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/functions/Signature.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/functions/Signature.java 
b/vxquery-core/src/main/java/org/apache/vxquery/functions/Signature.java
index 609e005..8604212 100644
--- a/vxquery-core/src/main/java/org/apache/vxquery/functions/Signature.java
+++ b/vxquery-core/src/main/java/org/apache/vxquery/functions/Signature.java
@@ -71,4 +71,4 @@ public final class Signature {
 
     public void serialize(StringBuffer buffer) {
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/functions/UserDefinedXQueryFunction.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/functions/UserDefinedXQueryFunction.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/functions/UserDefinedXQueryFunction.java
index 63b8c12..6d00845 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/functions/UserDefinedXQueryFunction.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/functions/UserDefinedXQueryFunction.java
@@ -18,7 +18,7 @@ import javax.xml.namespace.QName;
 
 import org.apache.vxquery.context.XQueryVariable;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
+import org.apache.hyracks.algebricks.core.algebra.base.ILogicalPlan;
 
 public class UserDefinedXQueryFunction extends Function {
     private XQueryVariable[] params;
@@ -54,4 +54,4 @@ public class UserDefinedXQueryFunction extends Function {
     public boolean useContextImplicitly() {
         return false;
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/metadata/QueryResultDataSink.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/metadata/QueryResultDataSink.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/metadata/QueryResultDataSink.java
index 9fc639f..8286d1b 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/metadata/QueryResultDataSink.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/metadata/QueryResultDataSink.java
@@ -16,11 +16,11 @@
  */
 package org.apache.vxquery.metadata;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSink;
-import edu.uci.ics.hyracks.algebricks.core.algebra.properties.FileSplitDomain;
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPartitioningProperty;
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.properties.RandomPartitioningProperty;
-import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
+import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSink;
+import org.apache.hyracks.algebricks.core.algebra.properties.FileSplitDomain;
+import 
org.apache.hyracks.algebricks.core.algebra.properties.IPartitioningProperty;
+import 
org.apache.hyracks.algebricks.core.algebra.properties.RandomPartitioningProperty;
+import org.apache.hyracks.dataflow.std.file.FileSplit;
 
 public class QueryResultDataSink implements IDataSink {
     private final FileSplit[] fileSplits;
@@ -49,4 +49,4 @@ public class QueryResultDataSink implements IDataSink {
     public FileSplit[] getFileSplits() {
         return fileSplits;
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/metadata/QueryResultSetDataSink.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/metadata/QueryResultSetDataSink.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/metadata/QueryResultSetDataSink.java
index 1e4e781..80166e7 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/metadata/QueryResultSetDataSink.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/metadata/QueryResultSetDataSink.java
@@ -16,11 +16,11 @@
  */
 package org.apache.vxquery.metadata;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSink;
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPartitioningProperty;
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.properties.RandomPartitioningProperty;
-import edu.uci.ics.hyracks.algebricks.core.algebra.properties.ResultSetDomain;
-import edu.uci.ics.hyracks.api.dataset.ResultSetId;
+import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSink;
+import 
org.apache.hyracks.algebricks.core.algebra.properties.IPartitioningProperty;
+import 
org.apache.hyracks.algebricks.core.algebra.properties.RandomPartitioningProperty;
+import org.apache.hyracks.algebricks.core.algebra.properties.ResultSetDomain;
+import org.apache.hyracks.api.dataset.ResultSetId;
 
 public class QueryResultSetDataSink implements IDataSink {
 
@@ -46,4 +46,4 @@ public class QueryResultSetDataSink implements IDataSink {
     public IPartitioningProperty getPartitioningProperty() {
         return new RandomPartitioningProperty(new ResultSetDomain());
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryCollectionDataSource.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryCollectionDataSource.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryCollectionDataSource.java
index d17a1a9..62d1ca7 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryCollectionDataSource.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryCollectionDataSource.java
@@ -21,14 +21,14 @@ import java.util.List;
 
 import org.apache.vxquery.compiler.rewriter.rules.CollectionFileDomain;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSource;
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourcePropertiesProvider;
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.properties.FunctionalDependency;
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.properties.ILocalStructuralProperty;
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPhysicalPropertiesVector;
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.properties.RandomPartitioningProperty;
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.properties.StructuralPropertiesVector;
+import org.apache.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSource;
+import 
org.apache.hyracks.algebricks.core.algebra.metadata.IDataSourcePropertiesProvider;
+import 
org.apache.hyracks.algebricks.core.algebra.properties.FunctionalDependency;
+import 
org.apache.hyracks.algebricks.core.algebra.properties.ILocalStructuralProperty;
+import 
org.apache.hyracks.algebricks.core.algebra.properties.IPhysicalPropertiesVector;
+import 
org.apache.hyracks.algebricks.core.algebra.properties.RandomPartitioningProperty;
+import 
org.apache.hyracks.algebricks.core.algebra.properties.StructuralPropertiesVector;
 
 public class VXQueryCollectionDataSource implements IDataSource<String> {
     private static final String DELIMITER = "\\|";

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryCollectionOperatorDescriptor.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryCollectionOperatorDescriptor.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryCollectionOperatorDescriptor.java
index 8fdd1ec..d5966b8 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryCollectionOperatorDescriptor.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryCollectionOperatorDescriptor.java
@@ -25,23 +25,24 @@ import java.util.logging.Logger;
 
 import org.apache.commons.io.FileUtils;
 import org.apache.commons.io.filefilter.TrueFileFilter;
+import org.apache.hyracks.api.comm.IFrame;
+import org.apache.hyracks.api.comm.IFrameFieldAppender;
+import org.apache.hyracks.api.comm.VSizeFrame;
+import org.apache.hyracks.api.context.IHyracksTaskContext;
+import org.apache.hyracks.api.dataflow.IOperatorNodePushable;
+import org.apache.hyracks.api.dataflow.value.IRecordDescriptorProvider;
+import org.apache.hyracks.api.dataflow.value.RecordDescriptor;
+import org.apache.hyracks.api.exceptions.HyracksDataException;
+import org.apache.hyracks.api.job.IOperatorDescriptorRegistry;
+import org.apache.hyracks.dataflow.common.comm.io.FrameFixedFieldTupleAppender;
+import org.apache.hyracks.dataflow.common.comm.io.FrameTupleAccessor;
+import 
org.apache.hyracks.dataflow.std.base.AbstractSingleActivityOperatorDescriptor;
+import 
org.apache.hyracks.dataflow.std.base.AbstractUnaryInputUnaryOutputOperatorNodePushable;
 import org.apache.vxquery.context.DynamicContext;
 import org.apache.vxquery.xmlparser.ITreeNodeIdProvider;
 import org.apache.vxquery.xmlparser.TreeNodeIdProvider;
 import org.apache.vxquery.xmlparser.XMLParser;
 
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
-import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.job.IOperatorDescriptorRegistry;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAccessor;
-import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
-import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
-import 
edu.uci.ics.hyracks.dataflow.std.base.AbstractSingleActivityOperatorDescriptor;
-import 
edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputUnaryOutputOperatorNodePushable;
-
 public class VXQueryCollectionOperatorDescriptor extends 
AbstractSingleActivityOperatorDescriptor {
     private static final long serialVersionUID = 1L;
     private short dataSourceId;
@@ -63,18 +64,18 @@ public class VXQueryCollectionOperatorDescriptor extends 
AbstractSingleActivityO
     @Override
     public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
             IRecordDescriptorProvider recordDescProvider, int partition, int 
nPartitions) throws HyracksDataException {
-        final FrameTupleAccessor fta = new 
FrameTupleAccessor(ctx.getFrameSize(),
+        final FrameTupleAccessor fta = new FrameTupleAccessor(
                 recordDescProvider.getInputRecordDescriptor(getActivityId(), 
0));
         final int fieldOutputCount = 
recordDescProvider.getOutputRecordDescriptor(getActivityId(), 
0).getFieldCount();
-        final ByteBuffer frame = ctx.allocateFrame();
-        final FrameTupleAppender appender = new 
FrameTupleAppender(ctx.getFrameSize(), fieldOutputCount);
+        final IFrame frame = new VSizeFrame(ctx);
+        final IFrameFieldAppender appender = new 
FrameFixedFieldTupleAppender(fieldOutputCount);
         final short partitionId = (short) 
ctx.getTaskAttemptId().getTaskId().getPartition();
         final ITreeNodeIdProvider nodeIdProvider = new 
TreeNodeIdProvider(partitionId, dataSourceId, totalDataSources);
         final String nodeId = 
ctx.getJobletContext().getApplicationContext().getNodeId();
         final DynamicContext dCtx = (DynamicContext) 
ctx.getJobletContext().getGlobalJobData();
 
         final String collectionName = collectionPartitions[partition % 
collectionPartitions.length];
-        final XMLParser parser = new XMLParser(false, nodeIdProvider, nodeId, 
frame, appender, childSeq,
+        final XMLParser parser = new XMLParser(false, nodeIdProvider, nodeId, 
appender, childSeq,
                 dCtx.getStaticContext());
 
         return new AbstractUnaryInputUnaryOutputOperatorNodePushable() {
@@ -101,7 +102,7 @@ public class VXQueryCollectionOperatorDescriptor extends 
AbstractSingleActivityO
                             if (LOGGER.isLoggable(Level.FINE)) {
                                 LOGGER.fine("Starting to read XML document: " 
+ xmlDocument.getAbsolutePath());
                             }
-                            parser.parseElements(xmlDocument, writer, fta, 
tupleIndex);
+                            parser.parseElements(xmlDocument, writer, 
tupleIndex);
                         }
                     }
                 } else {
@@ -118,12 +119,11 @@ public class VXQueryCollectionOperatorDescriptor extends 
AbstractSingleActivityO
             @Override
             public void close() throws HyracksDataException {
                 // Check if needed?
-                fta.reset(frame);
-                if (fta.getTupleCount() > 0) {
-                    FrameUtils.flushFrame(frame, writer);
+                if (appender.getTupleCount() > 0) {
+                    appender.flush(writer, true);
                 }
                 writer.close();
             }
         };
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryIOFileFilter.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryIOFileFilter.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryIOFileFilter.java
index 104f254..70070dc 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryIOFileFilter.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryIOFileFilter.java
@@ -34,4 +34,4 @@ public class VXQueryIOFileFilter implements IOFileFilter {
         }
         return false;
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryMetadataProvider.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryMetadataProvider.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryMetadataProvider.java
index ea4bdb1..238f6d3 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryMetadataProvider.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/metadata/VXQueryMetadataProvider.java
@@ -24,34 +24,34 @@ import java.util.Map;
 
 import org.apache.vxquery.context.StaticContext;
 
-import 
edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
-import 
edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
-import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSink;
-import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSource;
-import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourceIndex;
-import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import 
edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
-import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.JobGenContext;
-import edu.uci.ics.hyracks.algebricks.data.IAWriterFactory;
-import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
-import edu.uci.ics.hyracks.algebricks.data.IResultSerializerFactoryProvider;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntimeFactory;
-import 
edu.uci.ics.hyracks.algebricks.runtime.serializer.ResultSerializerFactoryProvider;
-import 
edu.uci.ics.hyracks.algebricks.runtime.writers.PrinterBasedWriterFactory;
-import edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor;
-import edu.uci.ics.hyracks.api.dataflow.value.IResultSerializerFactory;
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.dataset.ResultSetId;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-import edu.uci.ics.hyracks.dataflow.std.result.ResultWriterOperatorDescriptor;
+import 
org.apache.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
+import 
org.apache.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.common.utils.Pair;
+import org.apache.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import org.apache.hyracks.algebricks.core.algebra.base.LogicalVariable;
+import 
org.apache.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import org.apache.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import org.apache.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
+import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSink;
+import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSource;
+import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSourceIndex;
+import org.apache.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+import 
org.apache.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
+import org.apache.hyracks.algebricks.core.jobgen.impl.JobGenContext;
+import org.apache.hyracks.algebricks.data.IAWriterFactory;
+import org.apache.hyracks.algebricks.data.IPrinterFactory;
+import org.apache.hyracks.algebricks.data.IResultSerializerFactoryProvider;
+import org.apache.hyracks.algebricks.runtime.base.IPushRuntimeFactory;
+import 
org.apache.hyracks.algebricks.runtime.serializer.ResultSerializerFactoryProvider;
+import org.apache.hyracks.algebricks.runtime.writers.PrinterBasedWriterFactory;
+import org.apache.hyracks.api.dataflow.IOperatorDescriptor;
+import org.apache.hyracks.api.dataflow.value.IResultSerializerFactory;
+import org.apache.hyracks.api.dataflow.value.ISerializerDeserializer;
+import org.apache.hyracks.api.dataflow.value.RecordDescriptor;
+import org.apache.hyracks.api.dataset.ResultSetId;
+import org.apache.hyracks.api.job.JobSpecification;
+import org.apache.hyracks.dataflow.std.result.ResultWriterOperatorDescriptor;
 
 public class VXQueryMetadataProvider implements IMetadataProvider<String, 
String> {
     private final String[] nodeList;
@@ -229,4 +229,4 @@ public class VXQueryMetadataProvider implements 
IMetadataProvider<String, String
         throw new UnsupportedOperationException();
     }
 
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/result/ResultUtils.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/result/ResultUtils.java 
b/vxquery-core/src/main/java/org/apache/vxquery/result/ResultUtils.java
index 923706e..ae7f5a1 100644
--- a/vxquery-core/src/main/java/org/apache/vxquery/result/ResultUtils.java
+++ b/vxquery-core/src/main/java/org/apache/vxquery/result/ResultUtils.java
@@ -17,9 +17,9 @@ package org.apache.vxquery.result;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 
-import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.dataflow.common.comm.util.ByteBufferInputStream;
+import org.apache.hyracks.api.comm.IFrameTupleAccessor;
+import org.apache.hyracks.api.exceptions.HyracksDataException;
+import org.apache.hyracks.dataflow.common.comm.util.ByteBufferInputStream;
 
 public class ResultUtils {
     public static String getStringFromBuffer(ByteBuffer buffer, 
IFrameTupleAccessor fta) throws HyracksDataException {

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/factory/hashfunction/VXQueryRawBinaryHashFunctionFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/factory/hashfunction/VXQueryRawBinaryHashFunctionFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/factory/hashfunction/VXQueryRawBinaryHashFunctionFactory.java
index 4f9437b..5ec14ee 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/factory/hashfunction/VXQueryRawBinaryHashFunctionFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/factory/hashfunction/VXQueryRawBinaryHashFunctionFactory.java
@@ -16,9 +16,9 @@
  */
 package org.apache.vxquery.runtime.factory.hashfunction;
 
-import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
-import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
-import 
edu.uci.ics.hyracks.data.std.accessors.MurmurHash3BinaryHashFunctionFamily;
+import org.apache.hyracks.api.dataflow.value.IBinaryHashFunction;
+import org.apache.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
+import 
org.apache.hyracks.data.std.accessors.MurmurHash3BinaryHashFunctionFamily;
 
 public class VXQueryRawBinaryHashFunctionFactory implements 
IBinaryHashFunctionFactory {
     private static final long serialVersionUID = 1L;

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AbstractMaxMinAggregateEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AbstractMaxMinAggregateEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AbstractMaxMinAggregateEvaluatorFactory.java
index ba31783..325fb71 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AbstractMaxMinAggregateEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AbstractMaxMinAggregateEvaluatorFactory.java
@@ -31,12 +31,12 @@ import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentAggr
 import 
org.apache.vxquery.runtime.functions.comparison.AbstractValueComparisonOperation;
 import org.apache.vxquery.runtime.functions.util.FunctionHelper;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IAggregateEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.data.std.api.IPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.data.std.api.IPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public abstract class AbstractMaxMinAggregateEvaluatorFactory extends
         AbstractTaggedValueArgumentAggregateEvaluatorFactory {
@@ -110,4 +110,4 @@ public abstract class 
AbstractMaxMinAggregateEvaluatorFactory extends
     }
 
     protected abstract AbstractValueComparisonOperation 
createValueComparisonOperation();
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AbstractMaxMinScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AbstractMaxMinScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AbstractMaxMinScalarEvaluatorFactory.java
index b2aa0b9..82d938e 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AbstractMaxMinScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AbstractMaxMinScalarEvaluatorFactory.java
@@ -28,12 +28,12 @@ import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScal
 import 
org.apache.vxquery.runtime.functions.comparison.AbstractValueComparisonOperation;
 import org.apache.vxquery.runtime.functions.util.FunctionHelper;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.data.std.api.IPointable;
-import edu.uci.ics.hyracks.data.std.primitive.VoidPointable;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.api.context.IHyracksTaskContext;
+import org.apache.hyracks.data.std.api.IPointable;
+import org.apache.hyracks.data.std.primitive.VoidPointable;
 
 public abstract class AbstractMaxMinScalarEvaluatorFactory extends 
AbstractTaggedValueArgumentScalarEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -87,4 +87,4 @@ public abstract class AbstractMaxMinScalarEvaluatorFactory 
extends AbstractTagge
     }
 
     protected abstract AbstractValueComparisonOperation 
createValueComparisonOperation();
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AvgGlobalAggregateEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AvgGlobalAggregateEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AvgGlobalAggregateEvaluatorFactory.java
index 00756bf..828efd4 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AvgGlobalAggregateEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AvgGlobalAggregateEvaluatorFactory.java
@@ -30,13 +30,13 @@ import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentAggr
 import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentAggregateEvaluatorFactory;
 import org.apache.vxquery.runtime.functions.util.ArithmeticHelper;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IAggregateEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.data.std.api.IPointable;
-import edu.uci.ics.hyracks.data.std.primitive.LongPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.data.std.api.IPointable;
+import org.apache.hyracks.data.std.primitive.LongPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class AvgGlobalAggregateEvaluatorFactory extends 
AbstractTaggedValueArgumentAggregateEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -122,4 +122,4 @@ public class AvgGlobalAggregateEvaluatorFactory extends 
AbstractTaggedValueArgum
             }
         };
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AvgLocalAggregateEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AvgLocalAggregateEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AvgLocalAggregateEvaluatorFactory.java
index 010b96f..db2aa57 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AvgLocalAggregateEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/AvgLocalAggregateEvaluatorFactory.java
@@ -28,12 +28,12 @@ import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentAggr
 import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentAggregateEvaluatorFactory;
 import org.apache.vxquery.runtime.functions.util.ArithmeticHelper;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IAggregateEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.data.std.api.IPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.data.std.api.IPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class AvgLocalAggregateEvaluatorFactory extends 
AbstractTaggedValueArgumentAggregateEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -109,4 +109,4 @@ public class AvgLocalAggregateEvaluatorFactory extends 
AbstractTaggedValueArgume
             }
         };
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnAvgAggregateEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnAvgAggregateEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnAvgAggregateEvaluatorFactory.java
index 6489fe3..09a611f 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnAvgAggregateEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnAvgAggregateEvaluatorFactory.java
@@ -30,12 +30,12 @@ import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentAggr
 import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentAggregateEvaluatorFactory;
 import org.apache.vxquery.runtime.functions.util.ArithmeticHelper;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IAggregateEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.data.std.api.IPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.data.std.api.IPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class FnAvgAggregateEvaluatorFactory extends 
AbstractTaggedValueArgumentAggregateEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -109,4 +109,4 @@ public class FnAvgAggregateEvaluatorFactory extends 
AbstractTaggedValueArgumentA
             }
         };
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnAvgScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnAvgScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnAvgScalarEvaluatorFactory.java
index daa7715..9a511cd 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnAvgScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnAvgScalarEvaluatorFactory.java
@@ -31,12 +31,12 @@ import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScal
 import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScalarEvaluatorFactory;
 import org.apache.vxquery.runtime.functions.util.ArithmeticHelper;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.data.std.api.IPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.api.context.IHyracksTaskContext;
+import org.apache.hyracks.data.std.api.IPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class FnAvgScalarEvaluatorFactory extends 
AbstractTaggedValueArgumentScalarEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -101,4 +101,4 @@ public class FnAvgScalarEvaluatorFactory extends 
AbstractTaggedValueArgumentScal
             }
         };
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnCountAggregateEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnCountAggregateEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnCountAggregateEvaluatorFactory.java
index fbde38c..8c55630 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnCountAggregateEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnCountAggregateEvaluatorFactory.java
@@ -24,12 +24,12 @@ import org.apache.vxquery.exceptions.SystemException;
 import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentAggregateEvaluator;
 import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentAggregateEvaluatorFactory;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IAggregateEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.data.std.api.IPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.data.std.api.IPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class FnCountAggregateEvaluatorFactory extends 
AbstractTaggedValueArgumentAggregateEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -74,4 +74,4 @@ public class FnCountAggregateEvaluatorFactory extends 
AbstractTaggedValueArgumen
 
         };
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnCountScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnCountScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnCountScalarEvaluatorFactory.java
index c96ea6e..0912f29 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnCountScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnCountScalarEvaluatorFactory.java
@@ -26,12 +26,12 @@ import org.apache.vxquery.exceptions.SystemException;
 import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScalarEvaluator;
 import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScalarEvaluatorFactory;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.data.std.api.IPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.api.context.IHyracksTaskContext;
+import org.apache.hyracks.data.std.api.IPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class FnCountScalarEvaluatorFactory extends 
AbstractTaggedValueArgumentScalarEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -69,4 +69,4 @@ public class FnCountScalarEvaluatorFactory extends 
AbstractTaggedValueArgumentSc
             }
         };
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMaxAggregateEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMaxAggregateEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMaxAggregateEvaluatorFactory.java
index b4af077..4a4d0bc 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMaxAggregateEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMaxAggregateEvaluatorFactory.java
@@ -19,7 +19,7 @@ package org.apache.vxquery.runtime.functions.aggregate;
 import 
org.apache.vxquery.runtime.functions.comparison.AbstractValueComparisonOperation;
 import 
org.apache.vxquery.runtime.functions.comparison.ValueGtComparisonOperation;
 
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
 
 public class FnMaxAggregateEvaluatorFactory extends 
AbstractMaxMinAggregateEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -33,4 +33,4 @@ public class FnMaxAggregateEvaluatorFactory extends 
AbstractMaxMinAggregateEvalu
         return new ValueGtComparisonOperation();
     }
 
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMaxScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMaxScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMaxScalarEvaluatorFactory.java
index 5f7dd54..83966ec 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMaxScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMaxScalarEvaluatorFactory.java
@@ -19,7 +19,7 @@ package org.apache.vxquery.runtime.functions.aggregate;
 import 
org.apache.vxquery.runtime.functions.comparison.AbstractValueComparisonOperation;
 import 
org.apache.vxquery.runtime.functions.comparison.ValueGtComparisonOperation;
 
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
 
 public class FnMaxScalarEvaluatorFactory extends 
AbstractMaxMinScalarEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -33,4 +33,4 @@ public class FnMaxScalarEvaluatorFactory extends 
AbstractMaxMinScalarEvaluatorFa
         return new ValueGtComparisonOperation();
     }
 
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMinAggregateEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMinAggregateEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMinAggregateEvaluatorFactory.java
index 06557b2..32fa553 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMinAggregateEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMinAggregateEvaluatorFactory.java
@@ -19,7 +19,7 @@ package org.apache.vxquery.runtime.functions.aggregate;
 import 
org.apache.vxquery.runtime.functions.comparison.AbstractValueComparisonOperation;
 import 
org.apache.vxquery.runtime.functions.comparison.ValueLtComparisonOperation;
 
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
 
 public class FnMinAggregateEvaluatorFactory extends 
AbstractMaxMinAggregateEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -33,4 +33,4 @@ public class FnMinAggregateEvaluatorFactory extends 
AbstractMaxMinAggregateEvalu
         return new ValueLtComparisonOperation();
     }
 
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMinScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMinScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMinScalarEvaluatorFactory.java
index 1ff6e4b..90368db 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMinScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnMinScalarEvaluatorFactory.java
@@ -19,7 +19,7 @@ package org.apache.vxquery.runtime.functions.aggregate;
 import 
org.apache.vxquery.runtime.functions.comparison.AbstractValueComparisonOperation;
 import 
org.apache.vxquery.runtime.functions.comparison.ValueLtComparisonOperation;
 
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
 
 public class FnMinScalarEvaluatorFactory extends 
AbstractMaxMinScalarEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -33,4 +33,4 @@ public class FnMinScalarEvaluatorFactory extends 
AbstractMaxMinScalarEvaluatorFa
         return new ValueLtComparisonOperation();
     }
 
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnSumAggregateEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnSumAggregateEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnSumAggregateEvaluatorFactory.java
index 6e96fe7..b4fdcdc 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnSumAggregateEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnSumAggregateEvaluatorFactory.java
@@ -27,12 +27,12 @@ import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentAggr
 import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentAggregateEvaluatorFactory;
 import org.apache.vxquery.runtime.functions.util.ArithmeticHelper;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IAggregateEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.data.std.api.IPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.data.std.api.IPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class FnSumAggregateEvaluatorFactory extends 
AbstractTaggedValueArgumentAggregateEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -82,4 +82,4 @@ public class FnSumAggregateEvaluatorFactory extends 
AbstractTaggedValueArgumentA
             }
         };
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnSumScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnSumScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnSumScalarEvaluatorFactory.java
index 2088e1f..635fa8a 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnSumScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/aggregate/FnSumScalarEvaluatorFactory.java
@@ -29,13 +29,13 @@ import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScal
 import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScalarEvaluatorFactory;
 import org.apache.vxquery.runtime.functions.util.ArithmeticHelper;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.data.std.api.IPointable;
-import edu.uci.ics.hyracks.data.std.primitive.VoidPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.api.context.IHyracksTaskContext;
+import org.apache.hyracks.data.std.api.IPointable;
+import org.apache.hyracks.data.std.primitive.VoidPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class FnSumScalarEvaluatorFactory extends 
AbstractTaggedValueArgumentScalarEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -101,4 +101,4 @@ public class FnSumScalarEvaluatorFactory extends 
AbstractTaggedValueArgumentScal
             }
         };
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AbstractArithmeticOperation.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AbstractArithmeticOperation.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AbstractArithmeticOperation.java
index 51539d9..db4099b 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AbstractArithmeticOperation.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AbstractArithmeticOperation.java
@@ -26,10 +26,10 @@ import 
org.apache.vxquery.datamodel.accessors.atomic.XSDecimalPointable;
 import org.apache.vxquery.datamodel.accessors.atomic.XSTimePointable;
 import org.apache.vxquery.exceptions.SystemException;
 
-import edu.uci.ics.hyracks.data.std.primitive.DoublePointable;
-import edu.uci.ics.hyracks.data.std.primitive.FloatPointable;
-import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
-import edu.uci.ics.hyracks.data.std.primitive.LongPointable;
+import org.apache.hyracks.data.std.primitive.DoublePointable;
+import org.apache.hyracks.data.std.primitive.FloatPointable;
+import org.apache.hyracks.data.std.primitive.IntegerPointable;
+import org.apache.hyracks.data.std.primitive.LongPointable;
 
 public abstract class AbstractArithmeticOperation {
     public abstract void operateDateDate(XSDatePointable datep1, 
XSDatePointable datep2, DynamicContext dCtx,
@@ -172,4 +172,4 @@ public abstract class AbstractArithmeticOperation {
 
     public abstract void operateYMDurationYMDuration(IntegerPointable intp1, 
IntegerPointable intp2, DataOutput dOut)
             throws SystemException, IOException;
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AbstractArithmeticScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AbstractArithmeticScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AbstractArithmeticScalarEvaluatorFactory.java
index 90e1c4e..eb253a6 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AbstractArithmeticScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AbstractArithmeticScalarEvaluatorFactory.java
@@ -26,11 +26,11 @@ import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScal
 import 
org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScalarEvaluatorFactory;
 import org.apache.vxquery.runtime.functions.util.ArithmeticHelper;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.data.std.api.IPointable;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.api.context.IHyracksTaskContext;
+import org.apache.hyracks.data.std.api.IPointable;
 
 public abstract class AbstractArithmeticScalarEvaluatorFactory extends
         AbstractTaggedValueArgumentScalarEvaluatorFactory {
@@ -74,4 +74,4 @@ public abstract class 
AbstractArithmeticScalarEvaluatorFactory extends
     }
 
     protected abstract AbstractArithmeticOperation createArithmeticOperation();
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AddOperation.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AddOperation.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AddOperation.java
index b5fdd67..d6d3b7e 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AddOperation.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AddOperation.java
@@ -29,11 +29,11 @@ import org.apache.vxquery.datamodel.values.ValueTag;
 import org.apache.vxquery.exceptions.ErrorCode;
 import org.apache.vxquery.exceptions.SystemException;
 
-import edu.uci.ics.hyracks.data.std.primitive.DoublePointable;
-import edu.uci.ics.hyracks.data.std.primitive.FloatPointable;
-import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
-import edu.uci.ics.hyracks.data.std.primitive.LongPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.data.std.primitive.DoublePointable;
+import org.apache.hyracks.data.std.primitive.FloatPointable;
+import org.apache.hyracks.data.std.primitive.IntegerPointable;
+import org.apache.hyracks.data.std.primitive.LongPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class AddOperation extends AbstractArithmeticOperation {
     protected final ArrayBackedValueStorage abvsInner = new 
ArrayBackedValueStorage();
@@ -485,4 +485,4 @@ public class AddOperation extends 
AbstractArithmeticOperation {
         decp2.setDecimal(value1, place1);
         return decp2.longValue();
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AddScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AddScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AddScalarEvaluatorFactory.java
index d701171..728bd71 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AddScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/AddScalarEvaluatorFactory.java
@@ -16,7 +16,7 @@
  */
 package org.apache.vxquery.runtime.functions.arithmetic;
 
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
 
 public class AddScalarEvaluatorFactory extends 
AbstractArithmeticScalarEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -29,4 +29,4 @@ public class AddScalarEvaluatorFactory extends 
AbstractArithmeticScalarEvaluator
     protected AbstractArithmeticOperation createArithmeticOperation() {
         return new AddOperation();
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/DivideOperation.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/DivideOperation.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/DivideOperation.java
index f28c978..315c761 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/DivideOperation.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/DivideOperation.java
@@ -29,11 +29,11 @@ import org.apache.vxquery.exceptions.ErrorCode;
 import org.apache.vxquery.exceptions.SystemException;
 import org.apache.vxquery.runtime.functions.cast.CastToDecimalOperation;
 
-import edu.uci.ics.hyracks.data.std.primitive.DoublePointable;
-import edu.uci.ics.hyracks.data.std.primitive.FloatPointable;
-import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
-import edu.uci.ics.hyracks.data.std.primitive.LongPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.data.std.primitive.DoublePointable;
+import org.apache.hyracks.data.std.primitive.FloatPointable;
+import org.apache.hyracks.data.std.primitive.IntegerPointable;
+import org.apache.hyracks.data.std.primitive.LongPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class DivideOperation extends AbstractArithmeticOperation {
     protected final ArrayBackedValueStorage abvsInner = new 
ArrayBackedValueStorage();
@@ -499,4 +499,4 @@ public class DivideOperation extends 
AbstractArithmeticOperation {
         return (int) value1;
     }
 
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/DivideScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/DivideScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/DivideScalarEvaluatorFactory.java
index 6caea85..df427ab 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/DivideScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/DivideScalarEvaluatorFactory.java
@@ -16,7 +16,7 @@
  */
 package org.apache.vxquery.runtime.functions.arithmetic;
 
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
 
 public class DivideScalarEvaluatorFactory extends 
AbstractArithmeticScalarEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -29,4 +29,4 @@ public class DivideScalarEvaluatorFactory extends 
AbstractArithmeticScalarEvalua
     protected AbstractArithmeticOperation createArithmeticOperation() {
         return new DivideOperation();
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/IntegerDivideOperation.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/IntegerDivideOperation.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/IntegerDivideOperation.java
index c9854f0..3253606 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/IntegerDivideOperation.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/IntegerDivideOperation.java
@@ -28,11 +28,11 @@ import org.apache.vxquery.datamodel.values.ValueTag;
 import org.apache.vxquery.exceptions.ErrorCode;
 import org.apache.vxquery.exceptions.SystemException;
 
-import edu.uci.ics.hyracks.data.std.primitive.DoublePointable;
-import edu.uci.ics.hyracks.data.std.primitive.FloatPointable;
-import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
-import edu.uci.ics.hyracks.data.std.primitive.LongPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.data.std.primitive.DoublePointable;
+import org.apache.hyracks.data.std.primitive.FloatPointable;
+import org.apache.hyracks.data.std.primitive.IntegerPointable;
+import org.apache.hyracks.data.std.primitive.LongPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class IntegerDivideOperation extends AbstractArithmeticOperation {
     protected final ArrayBackedValueStorage abvsInner = new 
ArrayBackedValueStorage();
@@ -457,4 +457,4 @@ public class IntegerDivideOperation extends 
AbstractArithmeticOperation {
         throw new SystemException(ErrorCode.XPTY0004);
     }
 
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/IntegerDivideScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/IntegerDivideScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/IntegerDivideScalarEvaluatorFactory.java
index 1920ce4..0ab2626 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/IntegerDivideScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/IntegerDivideScalarEvaluatorFactory.java
@@ -16,7 +16,7 @@
  */
 package org.apache.vxquery.runtime.functions.arithmetic;
 
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
 
 public class IntegerDivideScalarEvaluatorFactory extends 
AbstractArithmeticScalarEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -29,4 +29,4 @@ public class IntegerDivideScalarEvaluatorFactory extends 
AbstractArithmeticScala
     protected AbstractArithmeticOperation createArithmeticOperation() {
         return new IntegerDivideOperation();
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/ModOperation.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/ModOperation.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/ModOperation.java
index 4ff2476..577b659 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/ModOperation.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/ModOperation.java
@@ -28,11 +28,11 @@ import org.apache.vxquery.datamodel.values.ValueTag;
 import org.apache.vxquery.exceptions.ErrorCode;
 import org.apache.vxquery.exceptions.SystemException;
 
-import edu.uci.ics.hyracks.data.std.primitive.DoublePointable;
-import edu.uci.ics.hyracks.data.std.primitive.FloatPointable;
-import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
-import edu.uci.ics.hyracks.data.std.primitive.LongPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.data.std.primitive.DoublePointable;
+import org.apache.hyracks.data.std.primitive.FloatPointable;
+import org.apache.hyracks.data.std.primitive.IntegerPointable;
+import org.apache.hyracks.data.std.primitive.LongPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class ModOperation extends AbstractArithmeticOperation {
     protected final ArrayBackedValueStorage abvsInner = new 
ArrayBackedValueStorage();
@@ -393,4 +393,4 @@ public class ModOperation extends 
AbstractArithmeticOperation {
         throw new SystemException(ErrorCode.XPTY0004);
     }
 
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/ModScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/ModScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/ModScalarEvaluatorFactory.java
index 5e300ea..f5cdc13 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/ModScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/ModScalarEvaluatorFactory.java
@@ -16,7 +16,7 @@
  */
 package org.apache.vxquery.runtime.functions.arithmetic;
 
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
 
 public class ModScalarEvaluatorFactory extends 
AbstractArithmeticScalarEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -29,4 +29,4 @@ public class ModScalarEvaluatorFactory extends 
AbstractArithmeticScalarEvaluator
     protected AbstractArithmeticOperation createArithmeticOperation() {
         return new ModOperation();
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/MultiplyOperation.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/MultiplyOperation.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/MultiplyOperation.java
index 8be9077..d4704cb 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/MultiplyOperation.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/MultiplyOperation.java
@@ -28,11 +28,11 @@ import org.apache.vxquery.datamodel.values.ValueTag;
 import org.apache.vxquery.exceptions.ErrorCode;
 import org.apache.vxquery.exceptions.SystemException;
 
-import edu.uci.ics.hyracks.data.std.primitive.DoublePointable;
-import edu.uci.ics.hyracks.data.std.primitive.FloatPointable;
-import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
-import edu.uci.ics.hyracks.data.std.primitive.LongPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.data.std.primitive.DoublePointable;
+import org.apache.hyracks.data.std.primitive.FloatPointable;
+import org.apache.hyracks.data.std.primitive.IntegerPointable;
+import org.apache.hyracks.data.std.primitive.LongPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class MultiplyOperation extends AbstractArithmeticOperation {
     protected final ArrayBackedValueStorage abvsInner = new 
ArrayBackedValueStorage();
@@ -403,4 +403,4 @@ public class MultiplyOperation extends 
AbstractArithmeticOperation {
         return decp1.longValue();
     }
 
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/MultiplyScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/MultiplyScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/MultiplyScalarEvaluatorFactory.java
index 20e2f57..fb5abb9 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/MultiplyScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/MultiplyScalarEvaluatorFactory.java
@@ -16,7 +16,7 @@
  */
 package org.apache.vxquery.runtime.functions.arithmetic;
 
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
 
 public class MultiplyScalarEvaluatorFactory extends 
AbstractArithmeticScalarEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -29,4 +29,4 @@ public class MultiplyScalarEvaluatorFactory extends 
AbstractArithmeticScalarEval
     protected AbstractArithmeticOperation createArithmeticOperation() {
         return new MultiplyOperation();
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/SubtractOperation.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/SubtractOperation.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/SubtractOperation.java
index 4311e04..9ac37ca 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/SubtractOperation.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/SubtractOperation.java
@@ -29,11 +29,11 @@ import org.apache.vxquery.datamodel.values.ValueTag;
 import org.apache.vxquery.exceptions.ErrorCode;
 import org.apache.vxquery.exceptions.SystemException;
 
-import edu.uci.ics.hyracks.data.std.primitive.DoublePointable;
-import edu.uci.ics.hyracks.data.std.primitive.FloatPointable;
-import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
-import edu.uci.ics.hyracks.data.std.primitive.LongPointable;
-import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.data.std.primitive.DoublePointable;
+import org.apache.hyracks.data.std.primitive.FloatPointable;
+import org.apache.hyracks.data.std.primitive.IntegerPointable;
+import org.apache.hyracks.data.std.primitive.LongPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
 
 public class SubtractOperation extends AbstractArithmeticOperation {
     protected final ArrayBackedValueStorage abvsInner1 = new 
ArrayBackedValueStorage();
@@ -651,4 +651,4 @@ public class SubtractOperation extends 
AbstractArithmeticOperation {
         return decp2.longValue();
     }
 
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/SubtractScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/SubtractScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/SubtractScalarEvaluatorFactory.java
index a1e73c9..ce97a57 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/SubtractScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/arithmetic/SubtractScalarEvaluatorFactory.java
@@ -16,7 +16,7 @@
  */
 package org.apache.vxquery.runtime.functions.arithmetic;
 
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
 
 public class SubtractScalarEvaluatorFactory extends 
AbstractArithmeticScalarEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -29,4 +29,4 @@ public class SubtractScalarEvaluatorFactory extends 
AbstractArithmeticScalarEval
     protected AbstractArithmeticOperation createArithmeticOperation() {
         return new SubtractOperation();
     }
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentAggregateEvaluator.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentAggregateEvaluator.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentAggregateEvaluator.java
index 78faf89..965e110 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentAggregateEvaluator.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentAggregateEvaluator.java
@@ -21,10 +21,10 @@ import 
org.apache.vxquery.datamodel.accessors.PointablePoolFactory;
 import org.apache.vxquery.datamodel.accessors.TaggedValuePointable;
 import org.apache.vxquery.exceptions.SystemException;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IAggregateEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public abstract class AbstractTaggedValueArgumentAggregateEvaluator implements 
IAggregateEvaluator {
     private final IScalarEvaluator[] args;
@@ -54,4 +54,4 @@ public abstract class 
AbstractTaggedValueArgumentAggregateEvaluator implements I
     }
 
     protected abstract void step(TaggedValuePointable[] args) throws 
SystemException;
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentAggregateEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentAggregateEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentAggregateEvaluatorFactory.java
index b2eaa5b..2ab0b66 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentAggregateEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentAggregateEvaluatorFactory.java
@@ -18,12 +18,12 @@ package org.apache.vxquery.runtime.functions.base;
 
 import org.apache.vxquery.context.DynamicContext;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IAggregateEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IAggregateEvaluatorFactory;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluatorFactory;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.api.context.IHyracksTaskContext;
 
 public abstract class AbstractTaggedValueArgumentAggregateEvaluatorFactory 
implements IAggregateEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -47,4 +47,4 @@ public abstract class 
AbstractTaggedValueArgumentAggregateEvaluatorFactory imple
     }
 
     protected abstract IAggregateEvaluator createEvaluator(IScalarEvaluator[] 
args) throws AlgebricksException;
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentScalarEvaluator.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentScalarEvaluator.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentScalarEvaluator.java
index e3ea702..e0229c2 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentScalarEvaluator.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentScalarEvaluator.java
@@ -21,10 +21,10 @@ import 
org.apache.vxquery.datamodel.accessors.PointablePoolFactory;
 import org.apache.vxquery.datamodel.accessors.TaggedValuePointable;
 import org.apache.vxquery.exceptions.SystemException;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.data.std.api.IPointable;
-import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.data.std.api.IPointable;
+import org.apache.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 
 public abstract class AbstractTaggedValueArgumentScalarEvaluator implements 
IScalarEvaluator {
     private final IScalarEvaluator[] args;
@@ -54,4 +54,4 @@ public abstract class 
AbstractTaggedValueArgumentScalarEvaluator implements ISca
     }
 
     protected abstract void evaluate(TaggedValuePointable[] args, IPointable 
result) throws SystemException;
-}
\ No newline at end of file
+}

http://git-wip-us.apache.org/repos/asf/vxquery/blob/5313291c/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentScalarEvaluatorFactory.java
----------------------------------------------------------------------
diff --git 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentScalarEvaluatorFactory.java
 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentScalarEvaluatorFactory.java
index 35781cb..d07361b 100644
--- 
a/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentScalarEvaluatorFactory.java
+++ 
b/vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/base/AbstractTaggedValueArgumentScalarEvaluatorFactory.java
@@ -16,10 +16,10 @@
  */
 package org.apache.vxquery.runtime.functions.base;
 
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import edu.uci.ics.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.api.context.IHyracksTaskContext;
 
 public abstract class AbstractTaggedValueArgumentScalarEvaluatorFactory 
implements IScalarEvaluatorFactory {
     private static final long serialVersionUID = 1L;
@@ -41,4 +41,4 @@ public abstract class 
AbstractTaggedValueArgumentScalarEvaluatorFactory implemen
 
     protected abstract IScalarEvaluator createEvaluator(IHyracksTaskContext 
ctx, IScalarEvaluator[] args)
             throws AlgebricksException;
-}
\ No newline at end of file
+}

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