Github user mravi commented on a diff in the pull request:
https://github.com/apache/incubator-phoenix/pull/22#discussion_r10860095
--- Diff:
phoenix-pig/src/main/java/org/apache/phoenix/pig/hadoop/PhoenixInputSplit.java
---
@@ -0,0 +1,185 @@
+/*
+ * Copyright 2010 The Apache Software Foundation
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ *distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you maynot use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicablelaw or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.phoenix.pig.hadoop;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.DataInput;
+import java.io.DataInputStream;
+import java.io.DataOutput;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.util.List;
+
+import org.apache.commons.lang.StringUtils;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.client.Scan;
+import org.apache.hadoop.hbase.util.Base64;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.io.WritableUtils;
+import org.apache.hadoop.mapreduce.InputSplit;
+import org.apache.phoenix.compile.ColumnProjector;
+import org.apache.phoenix.compile.ExpressionProjector;
+import org.apache.phoenix.expression.Expression;
+import org.apache.phoenix.expression.ExpressionType;
+
+import com.google.common.collect.Lists;
+
+public class PhoenixInputSplit extends InputSplit implements Writable {
+
+ private static final Log LOG =
LogFactory.getLog(PhoenixInputSplit.class);
+ private byte [] tableName;
+ private String scan = "";
+ private String regionLocation;
+ private List<? extends ColumnProjector> columnProjectors;
--- End diff --
The ColumnProjectors help in deserializing the column values and I need to
pass them to the RecordReader. Since the framework instantiates
PhoenixInputFormat twice, once during getSplits(in front end) and the next
during createRecordReader (in backend), I use PhoenixInputSplit as a vehicle to
carry the ColumnProjectors.
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