This is an automated email from the ASF dual-hosted git repository.
okram pushed a commit to branch tp4
in repository https://gitbox.apache.org/repos/asf/tinkerpop.git
The following commit(s) were added to refs/heads/tp4 by this push:
new 80c88fe CoreCompiler.Symbols now exists. Likewise
TinkerGraphCompiler.Symbols.
80c88fe is described below
commit 80c88fe09885035c9f9205089325b5decafe6d1c
Author: Marko A. Rodriguez <okramma...@gmail.com>
AuthorDate: Mon Mar 18 14:13:56 2019 -0600
CoreCompiler.Symbols now exists. Likewise TinkerGraphCompiler.Symbols.
---
.../tinkerpop/machine/bytecode/BytecodeUtil.java | 12 +-
.../tinkerpop/machine/bytecode/CoreCompiler.java | 106 +++++++++++++++++
.../apache/tinkerpop/machine/bytecode/Symbols.java | 128 ---------------------
.../machine/function/barrier/JoinBarrier.java | 6 +-
.../machine/strategy/CoefficientStrategy.java | 8 +-
.../strategy/CoefficientVerificationStrategy.java | 4 +-
.../machine/strategy/IdentityStrategy.java | 4 +-
.../tinkerpop/language/gremlin/Traversal.java | 2 +-
.../language/gremlin/TraversalSource.java | 2 +-
.../tinkerpop/language/gremlin/TraversalUtil.java | 2 +-
.../machine/beam/strategy/BeamStrategy.java | 2 +-
.../machine/pipes/strategy/PipesStrategy.java | 2 +-
.../apache/tinkerpop/machine/pipes/PipesTest.java | 2 +-
.../tinkergraph/bytecode/TinkerGraphCompiler.java | 11 +-
.../tinkergraph/strategy/VerticesStrategy.java | 7 +-
15 files changed, 143 insertions(+), 155 deletions(-)
diff --git
a/java/core/src/main/java/org/apache/tinkerpop/machine/bytecode/BytecodeUtil.java
b/java/core/src/main/java/org/apache/tinkerpop/machine/bytecode/BytecodeUtil.java
index a46b756..b9a750c 100644
---
a/java/core/src/main/java/org/apache/tinkerpop/machine/bytecode/BytecodeUtil.java
+++
b/java/core/src/main/java/org/apache/tinkerpop/machine/bytecode/BytecodeUtil.java
@@ -56,7 +56,7 @@ public final class BytecodeUtil {
try {
final List<Strategy> strategies = new ArrayList<>();
for (final SourceInstruction sourceInstruction :
bytecode.getSourceInstructions()) {
- if (sourceInstruction.op().equals(Symbols.WITH_STRATEGY))
+ if
(sourceInstruction.op().equals(CoreCompiler.Symbols.WITH_STRATEGY))
strategies.add(((Class<? extends Strategy>)
sourceInstruction.args()[0]).getConstructor().newInstance());
}
// TODO: sort strategies
@@ -70,7 +70,7 @@ public final class BytecodeUtil {
try {
Coefficient<C> coefficient = null;
for (final SourceInstruction sourceInstruction :
bytecode.getSourceInstructions()) {
- if (sourceInstruction.op().equals(Symbols.WITH_COEFFICIENT)) {
+ if
(sourceInstruction.op().equals(CoreCompiler.Symbols.WITH_COEFFICIENT)) {
coefficient = ((Class<? extends Coefficient<C>>)
sourceInstruction.args()[0]).getConstructor().newInstance();
}
}
@@ -85,7 +85,7 @@ public final class BytecodeUtil {
try {
ProcessorFactory processor = null;
for (final SourceInstruction sourceInstruction :
bytecode.getSourceInstructions()) {
- if (sourceInstruction.op().equals(Symbols.WITH_PROCESSOR)) {
+ if
(sourceInstruction.op().equals(CoreCompiler.Symbols.WITH_PROCESSOR)) {
processor = (ProcessorFactory) ((Class<? extends
Coefficient<C>>) sourceInstruction.args()[0]).getConstructor().newInstance();
}
}
@@ -99,7 +99,7 @@ public final class BytecodeUtil {
try {
StructureFactory structure = null;
for (final SourceInstruction sourceInstruction :
bytecode.getSourceInstructions()) {
- if (sourceInstruction.op().equals(Symbols.WITH_STRUCTURE)) {
+ if
(sourceInstruction.op().equals(CoreCompiler.Symbols.WITH_STRUCTURE)) {
structure = (StructureFactory) ((Class<? extends
Coefficient<C>>) sourceInstruction.args()[0]).getConstructor().newInstance();
}
}
@@ -126,9 +126,9 @@ public final class BytecodeUtil {
public static <C> Optional<TraverserFactory<C>> getTraverserFactory(final
Bytecode<C> bytecode) {
// TODO: make this real
for (final Instruction<C> instruction : bytecode.getInstructions()) {
- if (instruction.op().equals(Symbols.PATH))
+ if (instruction.op().equals(CoreCompiler.Symbols.PATH))
return Optional.of(COPTraverserFactory.instance());
- else if (instruction.op().equals(Symbols.REPEAT))
+ else if (instruction.op().equals(CoreCompiler.Symbols.REPEAT))
return Optional.of(CORTraverserFactory.instance());
}
return Optional.of(COPTraverserFactory.instance());
diff --git
a/java/core/src/main/java/org/apache/tinkerpop/machine/bytecode/CoreCompiler.java
b/java/core/src/main/java/org/apache/tinkerpop/machine/bytecode/CoreCompiler.java
index 53e8c3f..9832d58 100644
---
a/java/core/src/main/java/org/apache/tinkerpop/machine/bytecode/CoreCompiler.java
+++
b/java/core/src/main/java/org/apache/tinkerpop/machine/bytecode/CoreCompiler.java
@@ -106,4 +106,110 @@ public final class CoreCompiler implements
BytecodeCompiler {
return null;
}
}
+
+ public static final class Symbols {
+
+ private Symbols() {
+ // static instance
+ }
+
+ public static enum Type {
+ BARRIER, INITIAL, MAP, FLATMAP, FILTER, REDUCE, BRANCH
+ }
+
+ public static enum Tokens {
+ inner, left, right, full
+ }
+
+ // SOURCE OPS
+ public static final String WITH_COEFFICIENT = "withCoefficient";
+ public static final String WITH_PROCESSOR = "withProcessor";
+ public static final String WITH_STRUCTURE = "withStructure";
+ public static final String WITH_STRATEGY = "withStrategy";
+
+
+ // ARGUMENT TOKENS
+ public static final String EQ = "eq";
+ public static final String NEQ = "neq";
+ public static final String LT = "lt";
+ public static final String GT = "gt";
+ public static final String LTE = "lte";
+ public static final String GTE = "gte";
+ public static final String REGEX = "regex";
+
+ // INSTRUCTION OPS
+ public static final String BARRIER = "barrier";
+ public static final String CHOOSE_IF_THEN = "chooseIfThen";
+ public static final String CHOOSE_IF_THEN_ELSE = "chooseIfThenElse";
+ public static final String CONSTANT = "constant";
+ public static final String COUNT = "count";
+ public static final String FILTER = "filter";
+ public static final String GROUP_COUNT = "groupCount";
+ public static final String HAS_KEY = "hasKey";
+ public static final String HAS_KEY_VALUE = "hasKeyValue";
+ public static final String IDENTITY = "identity";
+ public static final String INCR = "incr";
+ public static final String INJECT = "inject";
+ public static final String IS = "is";
+ public static final String JOIN = "join";
+ public static final String LOOPS = "loops";
+ public static final String MAP = "map";
+ public static final String PATH = "path";
+ public static final String REPEAT = "repeat";
+ public static final String SUM = "sum";
+ public static final String UNFOLD = "unfold";
+ public static final String UNION = "union";
+ public static final String V = "V";
+
+ public static Type getOpType(final String op) {
+ switch (op) {
+ case BARRIER:
+ return Type.BARRIER;
+ case CHOOSE_IF_THEN:
+ return Type.BRANCH;
+ case CHOOSE_IF_THEN_ELSE:
+ return Type.BRANCH;
+ case CONSTANT:
+ return Type.MAP;
+ case COUNT:
+ return Type.REDUCE;
+ case FILTER:
+ return Type.FILTER;
+ case GROUP_COUNT:
+ return Type.REDUCE;
+ case HAS_KEY:
+ return Type.FILTER;
+ case HAS_KEY_VALUE:
+ return Type.FILTER;
+ case IDENTITY:
+ return Type.FILTER;
+ case INCR:
+ return Type.MAP;
+ case INJECT:
+ return Type.INITIAL;
+ case IS:
+ return Type.FILTER;
+ case JOIN:
+ return Type.BARRIER;
+ case LOOPS:
+ return Type.MAP;
+ case MAP:
+ return Type.MAP;
+ case PATH:
+ return Type.MAP;
+ case REPEAT:
+ return Type.BRANCH;
+ case SUM:
+ return Type.REDUCE;
+ case UNFOLD:
+ return Type.FLATMAP;
+ case UNION:
+ return Type.BRANCH;
+ case V:
+ return Type.FLATMAP;
+ default:
+ throw new IllegalArgumentException("The following op is
unknown: " + op);
+ }
+ }
+ }
}
diff --git
a/java/core/src/main/java/org/apache/tinkerpop/machine/bytecode/Symbols.java
b/java/core/src/main/java/org/apache/tinkerpop/machine/bytecode/Symbols.java
deleted file mode 100644
index f518324..0000000
--- a/java/core/src/main/java/org/apache/tinkerpop/machine/bytecode/Symbols.java
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * 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 may not 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 applicable law 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.tinkerpop.machine.bytecode;
-
-/**
- * @author Marko A. Rodriguez (http://markorodriguez.com)
- */
-public final class Symbols {
-
- private Symbols() {
- // static instance
- }
-
- public static enum Type {
- BARRIER, INITIAL, MAP, FLATMAP, FILTER, REDUCE, BRANCH
- }
-
- public static enum Tokens {
- inner, left, right, full
- }
-
- // SOURCE OPS
- public static final String WITH_COEFFICIENT = "withCoefficient";
- public static final String WITH_PROCESSOR = "withProcessor";
- public static final String WITH_STRUCTURE = "withStructure";
- public static final String WITH_STRATEGY = "withStrategy";
-
-
- // ARGUMENT TOKENS
- public static final String EQ = "eq";
- public static final String NEQ = "neq";
- public static final String LT = "lt";
- public static final String GT = "gt";
- public static final String LTE = "lte";
- public static final String GTE = "gte";
- public static final String REGEX = "regex";
-
- // INSTRUCTION OPS
- public static final String BARRIER = "barrier";
- public static final String CHOOSE_IF_THEN = "chooseIfThen";
- public static final String CHOOSE_IF_THEN_ELSE = "chooseIfThenElse";
- public static final String CONSTANT = "constant";
- public static final String COUNT = "count";
- public static final String FILTER = "filter";
- public static final String GROUP_COUNT = "groupCount";
- public static final String HAS_KEY = "hasKey";
- public static final String HAS_KEY_VALUE = "hasKeyValue";
- public static final String IDENTITY = "identity";
- public static final String INCR = "incr";
- public static final String INJECT = "inject";
- public static final String IS = "is";
- public static final String JOIN = "join";
- public static final String LOOPS = "loops";
- public static final String MAP = "map";
- public static final String PATH = "path";
- public static final String REPEAT = "repeat";
- public static final String SUM = "sum";
- public static final String UNFOLD = "unfold";
- public static final String UNION = "union";
- public static final String V = "V";
-
- public static Type getOpType(final String op) {
- switch (op) {
- case BARRIER:
- return Type.BARRIER;
- case CHOOSE_IF_THEN:
- return Type.BRANCH;
- case CHOOSE_IF_THEN_ELSE:
- return Type.BRANCH;
- case CONSTANT:
- return Type.MAP;
- case COUNT:
- return Type.REDUCE;
- case FILTER:
- return Type.FILTER;
- case GROUP_COUNT:
- return Type.REDUCE;
- case HAS_KEY:
- return Type.FILTER;
- case HAS_KEY_VALUE:
- return Type.FILTER;
- case IDENTITY:
- return Type.FILTER;
- case INCR:
- return Type.MAP;
- case INJECT:
- return Type.INITIAL;
- case IS:
- return Type.FILTER;
- case JOIN:
- return Type.BARRIER;
- case LOOPS:
- return Type.MAP;
- case MAP:
- return Type.MAP;
- case PATH:
- return Type.MAP;
- case REPEAT:
- return Type.BRANCH;
- case SUM:
- return Type.REDUCE;
- case UNFOLD:
- return Type.FLATMAP;
- case UNION:
- return Type.BRANCH;
- case V:
- return Type.FLATMAP;
- default:
- throw new IllegalArgumentException("The following op is
unknown: " + op);
- }
- }
-}
diff --git
a/java/core/src/main/java/org/apache/tinkerpop/machine/function/barrier/JoinBarrier.java
b/java/core/src/main/java/org/apache/tinkerpop/machine/function/barrier/JoinBarrier.java
index b110f15..2e637e2 100644
---
a/java/core/src/main/java/org/apache/tinkerpop/machine/function/barrier/JoinBarrier.java
+++
b/java/core/src/main/java/org/apache/tinkerpop/machine/function/barrier/JoinBarrier.java
@@ -20,7 +20,7 @@ package org.apache.tinkerpop.machine.function.barrier;
import org.apache.tinkerpop.machine.bytecode.Argument;
import org.apache.tinkerpop.machine.bytecode.Compilation;
-import org.apache.tinkerpop.machine.bytecode.Symbols;
+import org.apache.tinkerpop.machine.bytecode.CoreCompiler;
import org.apache.tinkerpop.machine.coefficient.Coefficient;
import org.apache.tinkerpop.machine.function.AbstractFunction;
import org.apache.tinkerpop.machine.function.BarrierFunction;
@@ -39,12 +39,12 @@ import java.util.Set;
*/
public class JoinBarrier<C, K, V> extends AbstractFunction<C> implements
BarrierFunction<C, Map<K, V>, Map<K, V>, List<Map<K, V>>> {
- private final Symbols.Tokens joinType;
+ private final CoreCompiler.Symbols.Tokens joinType;
private final Compilation<C, Map<K, V>, Map<K, V>> joinCompilation;
private final Argument<K> joinKey;
public JoinBarrier(final Coefficient<C> coefficient, final Set<String>
labels,
- Symbols.Tokens joinType,
+ CoreCompiler.Symbols.Tokens joinType,
final Compilation<C, Map<K, V>, Map<K, V>>
joinCompilation,
final Argument<K> joinKey) {
super(coefficient, labels);
diff --git
a/java/core/src/main/java/org/apache/tinkerpop/machine/strategy/CoefficientStrategy.java
b/java/core/src/main/java/org/apache/tinkerpop/machine/strategy/CoefficientStrategy.java
index 1eba1fd..67d700c 100644
---
a/java/core/src/main/java/org/apache/tinkerpop/machine/strategy/CoefficientStrategy.java
+++
b/java/core/src/main/java/org/apache/tinkerpop/machine/strategy/CoefficientStrategy.java
@@ -18,7 +18,7 @@
*/
package org.apache.tinkerpop.machine.strategy;
-import org.apache.tinkerpop.machine.bytecode.Symbols;
+import org.apache.tinkerpop.machine.bytecode.CoreCompiler;
import org.apache.tinkerpop.machine.bytecode.Bytecode;
import org.apache.tinkerpop.machine.bytecode.BytecodeUtil;
import org.apache.tinkerpop.machine.bytecode.Instruction;
@@ -34,14 +34,14 @@ public final class CoefficientStrategy implements Strategy {
Coefficient<C> coefficient =
BytecodeUtil.getCoefficient(bytecode).orElse(null);
if (null == coefficient) {
coefficient = (Coefficient<C>) LongCoefficient.create();
- bytecode.addSourceInstruction(Symbols.WITH_COEFFICIENT,
coefficient.getClass());
+
bytecode.addSourceInstruction(CoreCompiler.Symbols.WITH_COEFFICIENT,
coefficient.getClass());
}
for (final Instruction<C> instruction : bytecode.getInstructions()) {
for (final Object arg : instruction.args()) {
if (arg instanceof Bytecode) {
final Bytecode<C> next = (Bytecode<C>) arg;
- if (!BytecodeUtil.hasSourceInstruction(next,
Symbols.WITH_COEFFICIENT)) {
- next.addSourceInstruction(Symbols.WITH_COEFFICIENT,
coefficient.getClass());
+ if (!BytecodeUtil.hasSourceInstruction(next,
CoreCompiler.Symbols.WITH_COEFFICIENT)) {
+
next.addSourceInstruction(CoreCompiler.Symbols.WITH_COEFFICIENT,
coefficient.getClass());
}
}
}
diff --git
a/java/core/src/main/java/org/apache/tinkerpop/machine/strategy/CoefficientVerificationStrategy.java
b/java/core/src/main/java/org/apache/tinkerpop/machine/strategy/CoefficientVerificationStrategy.java
index b0128ea..0bfb420 100644
---
a/java/core/src/main/java/org/apache/tinkerpop/machine/strategy/CoefficientVerificationStrategy.java
+++
b/java/core/src/main/java/org/apache/tinkerpop/machine/strategy/CoefficientVerificationStrategy.java
@@ -19,8 +19,8 @@
package org.apache.tinkerpop.machine.strategy;
import org.apache.tinkerpop.machine.bytecode.Bytecode;
+import org.apache.tinkerpop.machine.bytecode.CoreCompiler;
import org.apache.tinkerpop.machine.bytecode.Instruction;
-import org.apache.tinkerpop.machine.bytecode.Symbols;
/**
* @author Marko A. Rodriguez (http://markorodriguez.com)
@@ -30,7 +30,7 @@ public final class CoefficientVerificationStrategy implements
Strategy {
@Override
public <C> void apply(final Bytecode<C> bytecode) {
for (final Instruction<C> instruction : bytecode.getInstructions()) {
- if
(Symbols.getOpType(instruction.op()).equals(Symbols.Type.REDUCE)) {
+ if
(CoreCompiler.Symbols.getOpType(instruction.op()).equals(CoreCompiler.Symbols.Type.REDUCE))
{
if (!instruction.coefficient().isUnity())
throw new IllegalStateException("Reduce functions can not
have non-unity coefficients: " + instruction);
}
diff --git
a/java/core/src/main/java/org/apache/tinkerpop/machine/strategy/IdentityStrategy.java
b/java/core/src/main/java/org/apache/tinkerpop/machine/strategy/IdentityStrategy.java
index 6886244..5772914 100644
---
a/java/core/src/main/java/org/apache/tinkerpop/machine/strategy/IdentityStrategy.java
+++
b/java/core/src/main/java/org/apache/tinkerpop/machine/strategy/IdentityStrategy.java
@@ -18,7 +18,7 @@
*/
package org.apache.tinkerpop.machine.strategy;
-import org.apache.tinkerpop.machine.bytecode.Symbols;
+import org.apache.tinkerpop.machine.bytecode.CoreCompiler;
import org.apache.tinkerpop.machine.bytecode.Bytecode;
/**
@@ -29,7 +29,7 @@ public final class IdentityStrategy implements Strategy {
@Override
public <C> void apply(final Bytecode<C> bytecode) {
bytecode.getInstructions().removeIf(instruction ->
- instruction.op().equals(Symbols.IDENTITY) &&
+ instruction.op().equals(CoreCompiler.Symbols.IDENTITY) &&
instruction.labels().isEmpty() &&
instruction.coefficient().isUnity());
}
diff --git
a/java/language/gremlin/src/main/java/org/apache/tinkerpop/language/gremlin/Traversal.java
b/java/language/gremlin/src/main/java/org/apache/tinkerpop/language/gremlin/Traversal.java
index 1d74861..72177a3 100644
---
a/java/language/gremlin/src/main/java/org/apache/tinkerpop/language/gremlin/Traversal.java
+++
b/java/language/gremlin/src/main/java/org/apache/tinkerpop/language/gremlin/Traversal.java
@@ -18,12 +18,12 @@
*/
package org.apache.tinkerpop.language.gremlin;
+import org.apache.tinkerpop.machine.bytecode.CoreCompiler.Symbols;
import org.apache.tinkerpop.machine.structure.data.TVertex;
import org.apache.tinkerpop.machine.bytecode.Bytecode;
import org.apache.tinkerpop.machine.bytecode.BytecodeUtil;
import org.apache.tinkerpop.machine.bytecode.Compilation;
import org.apache.tinkerpop.machine.bytecode.P;
-import org.apache.tinkerpop.machine.bytecode.Symbols;
import org.apache.tinkerpop.machine.coefficient.Coefficient;
import org.apache.tinkerpop.machine.coefficient.LongCoefficient;
import org.apache.tinkerpop.machine.traverser.Traverser;
diff --git
a/java/language/gremlin/src/main/java/org/apache/tinkerpop/language/gremlin/TraversalSource.java
b/java/language/gremlin/src/main/java/org/apache/tinkerpop/language/gremlin/TraversalSource.java
index 5be6eba..389e429 100644
---
a/java/language/gremlin/src/main/java/org/apache/tinkerpop/language/gremlin/TraversalSource.java
+++
b/java/language/gremlin/src/main/java/org/apache/tinkerpop/language/gremlin/TraversalSource.java
@@ -19,7 +19,7 @@
package org.apache.tinkerpop.language.gremlin;
import org.apache.tinkerpop.machine.bytecode.Bytecode;
-import org.apache.tinkerpop.machine.bytecode.Symbols;
+import org.apache.tinkerpop.machine.bytecode.CoreCompiler.Symbols;
import org.apache.tinkerpop.machine.coefficient.Coefficient;
import org.apache.tinkerpop.machine.processor.ProcessorFactory;
import org.apache.tinkerpop.machine.strategy.CoefficientStrategy;
diff --git
a/java/language/gremlin/src/main/java/org/apache/tinkerpop/language/gremlin/TraversalUtil.java
b/java/language/gremlin/src/main/java/org/apache/tinkerpop/language/gremlin/TraversalUtil.java
index 15f0ccc..83f3150 100644
---
a/java/language/gremlin/src/main/java/org/apache/tinkerpop/language/gremlin/TraversalUtil.java
+++
b/java/language/gremlin/src/main/java/org/apache/tinkerpop/language/gremlin/TraversalUtil.java
@@ -19,8 +19,8 @@
package org.apache.tinkerpop.language.gremlin;
import org.apache.tinkerpop.machine.bytecode.Bytecode;
+import org.apache.tinkerpop.machine.bytecode.CoreCompiler.Symbols;
import org.apache.tinkerpop.machine.bytecode.Instruction;
-import org.apache.tinkerpop.machine.bytecode.Symbols;
import org.apache.tinkerpop.machine.coefficient.Coefficient;
/**
diff --git
a/java/machine/processor/beam/src/main/java/org/apache/tinkerpop/machine/beam/strategy/BeamStrategy.java
b/java/machine/processor/beam/src/main/java/org/apache/tinkerpop/machine/beam/strategy/BeamStrategy.java
index 920d8f3..b793b3b 100644
---
a/java/machine/processor/beam/src/main/java/org/apache/tinkerpop/machine/beam/strategy/BeamStrategy.java
+++
b/java/machine/processor/beam/src/main/java/org/apache/tinkerpop/machine/beam/strategy/BeamStrategy.java
@@ -18,9 +18,9 @@
*/
package org.apache.tinkerpop.machine.beam.strategy;
-import org.apache.tinkerpop.machine.bytecode.Symbols;
import org.apache.tinkerpop.machine.bytecode.Bytecode;
import org.apache.tinkerpop.machine.bytecode.BytecodeUtil;
+import org.apache.tinkerpop.machine.bytecode.CoreCompiler.Symbols;
import org.apache.tinkerpop.machine.pipes.PipesProcessor;
import org.apache.tinkerpop.machine.strategy.Strategy;
diff --git
a/java/machine/processor/pipes/src/main/java/org/apache/tinkerpop/machine/pipes/strategy/PipesStrategy.java
b/java/machine/processor/pipes/src/main/java/org/apache/tinkerpop/machine/pipes/strategy/PipesStrategy.java
index 5f5452c..271e174 100644
---
a/java/machine/processor/pipes/src/main/java/org/apache/tinkerpop/machine/pipes/strategy/PipesStrategy.java
+++
b/java/machine/processor/pipes/src/main/java/org/apache/tinkerpop/machine/pipes/strategy/PipesStrategy.java
@@ -18,9 +18,9 @@
*/
package org.apache.tinkerpop.machine.pipes.strategy;
-import org.apache.tinkerpop.machine.bytecode.Symbols;
import org.apache.tinkerpop.machine.bytecode.Bytecode;
import org.apache.tinkerpop.machine.bytecode.BytecodeUtil;
+import org.apache.tinkerpop.machine.bytecode.CoreCompiler.Symbols;
import org.apache.tinkerpop.machine.pipes.PipesProcessor;
import org.apache.tinkerpop.machine.strategy.Strategy;
diff --git
a/java/machine/processor/pipes/src/test/java/org/apache/tinkerpop/machine/pipes/PipesTest.java
b/java/machine/processor/pipes/src/test/java/org/apache/tinkerpop/machine/pipes/PipesTest.java
index 9f7b2f8..c1d65dc 100644
---
a/java/machine/processor/pipes/src/test/java/org/apache/tinkerpop/machine/pipes/PipesTest.java
+++
b/java/machine/processor/pipes/src/test/java/org/apache/tinkerpop/machine/pipes/PipesTest.java
@@ -34,7 +34,7 @@ import java.util.List;
import java.util.Map;
import static org.apache.tinkerpop.language.gremlin.__.incr;
-import static org.apache.tinkerpop.machine.bytecode.Symbols.Tokens.inner;
+import static
org.apache.tinkerpop.machine.bytecode.CoreCompiler.Symbols.Tokens.inner;
/**
* @author Marko A. Rodriguez (http://markorodriguez.com)
diff --git
a/java/machine/structure/tinkergraph/src/main/java/org/apache/tinkerpop/machine/structure/tinkergraph/bytecode/TinkerGraphCompiler.java
b/java/machine/structure/tinkergraph/src/main/java/org/apache/tinkerpop/machine/structure/tinkergraph/bytecode/TinkerGraphCompiler.java
index f005933..e4c04ff 100644
---
a/java/machine/structure/tinkergraph/src/main/java/org/apache/tinkerpop/machine/structure/tinkergraph/bytecode/TinkerGraphCompiler.java
+++
b/java/machine/structure/tinkergraph/src/main/java/org/apache/tinkerpop/machine/structure/tinkergraph/bytecode/TinkerGraphCompiler.java
@@ -35,9 +35,18 @@ public class TinkerGraphCompiler implements BytecodeCompiler
{
final String op = instruction.op();
final Coefficient<C> coefficient = instruction.coefficient();
final Set<String> labels = instruction.labels();
- if (op.equals("tg:V"))
+ if (op.equals(Symbols.TG_V))
return new VerticesFlatMap<>(coefficient, labels);
else
return null;
}
+
+ public static class Symbols {
+
+ private Symbols() {
+ // static instance
+ }
+
+ public static final String TG_V = "tg:V";
+ }
}
diff --git
a/java/machine/structure/tinkergraph/src/main/java/org/apache/tinkerpop/machine/structure/tinkergraph/strategy/VerticesStrategy.java
b/java/machine/structure/tinkergraph/src/main/java/org/apache/tinkerpop/machine/structure/tinkergraph/strategy/VerticesStrategy.java
index 9bf2ea6..f5163e5 100644
---
a/java/machine/structure/tinkergraph/src/main/java/org/apache/tinkerpop/machine/structure/tinkergraph/strategy/VerticesStrategy.java
+++
b/java/machine/structure/tinkergraph/src/main/java/org/apache/tinkerpop/machine/structure/tinkergraph/strategy/VerticesStrategy.java
@@ -21,8 +21,9 @@ package
org.apache.tinkerpop.machine.structure.tinkergraph.strategy;
import org.apache.tinkerpop.machine.bytecode.Bytecode;
import org.apache.tinkerpop.machine.bytecode.BytecodeUtil;
import org.apache.tinkerpop.machine.bytecode.Instruction;
-import org.apache.tinkerpop.machine.bytecode.Symbols;
+import org.apache.tinkerpop.machine.bytecode.CoreCompiler;
import org.apache.tinkerpop.machine.strategy.Strategy;
+import
org.apache.tinkerpop.machine.structure.tinkergraph.bytecode.TinkerGraphCompiler;
/**
* @author Marko A. Rodriguez (http://markorodriguez.com)
@@ -32,10 +33,10 @@ public class VerticesStrategy implements Strategy {
public <C> void apply(final Bytecode<C> bytecode) {
Instruction<C> temp = null;
for (final Instruction<C> instruction : bytecode.getInstructions()) {
- if (instruction.op().equals(Symbols.V))
+ if (instruction.op().equals(CoreCompiler.Symbols.V))
temp = instruction;
}
if (null != temp)
- BytecodeUtil.replaceInstruction(bytecode, temp, new
Instruction<>(temp.coefficient(), "tg:V"));
+ BytecodeUtil.replaceInstruction(bytecode, temp, new
Instruction<>(temp.coefficient(), TinkerGraphCompiler.Symbols.TG_V));
}
}
