Hi, I'm running Neo4J 2.0, stable.
I've tried two ways of inserting a unique node through the java API (one
using unique node factory and a second version using cyper) on my embedded
neo4j instance.
I'm running into an error on both attempts. I understand the Cyper MERGE
version is the new preferred way of doing it, so here is the stack trace
for the Cypher version (code included afterwards)
Exception in thread "main" java.lang.NoSuchMethodError:
org.neo4j.kernel.impl.nioneo.store.PropertyRecord.clone()Lorg/neo4j/kernel/impl/nioneo/store/PropertyRecord;
at
org.neo4j.kernel.impl.nioneo.xa.WriteTransaction$2.clone(WriteTransaction.java:193)
at
org.neo4j.kernel.impl.nioneo.xa.WriteTransaction$2.clone(WriteTransaction.java:156)
at
org.neo4j.kernel.impl.nioneo.xa.RecordChanges$RecordChange.ensureHasBeforeRecordImage(RecordChanges.java:194)
at
org.neo4j.kernel.impl.nioneo.xa.RecordChanges$RecordChange.prepareForChange(RecordChanges.java:146)
at
org.neo4j.kernel.impl.nioneo.xa.RecordChanges$RecordChange.forChangingData(RecordChanges.java:141)
at
org.neo4j.kernel.impl.nioneo.xa.WriteTransaction.addPropertyBlockToPrimitive(WriteTransaction.java:1667)
at
org.neo4j.kernel.impl.nioneo.xa.WriteTransaction.addPropertyToPrimitive(WriteTransaction.java:1600)
at
org.neo4j.kernel.impl.nioneo.xa.WriteTransaction.nodeAddProperty(WriteTransaction.java:1628)
at
org.neo4j.kernel.impl.persistence.PersistenceManager.nodeAddProperty(PersistenceManager.java:130)
at
org.neo4j.kernel.impl.api.StateHandlingStatementOperations.nodeSetProperty(StateHandlingStatementOperations.java:521)
at
org.neo4j.kernel.impl.api.ConstraintEnforcingEntityOperations.nodeSetProperty(ConstraintEnforcingEntityOperations.java:92)
at
org.neo4j.kernel.impl.api.LockingStatementOperations.nodeSetProperty(LockingStatementOperations.java:261)
at
org.neo4j.kernel.impl.api.OperationsFacade.nodeSetProperty(OperationsFacade.java:466)
at
org.neo4j.cypher.internal.spi.v2_0.TransactionBoundExecutionContext$NodeOperations.setProperty(TransactionBoundExecutionContext.scala:150)
at
org.neo4j.cypher.internal.compiler.v2_0.spi.DelegatingOperations.setProperty(DelegatingQueryContext.scala:96)
at
org.neo4j.cypher.internal.compiler.v2_0.spi.ExceptionTranslatingQueryContext$ExceptionTranslatingOperations.org$neo4j$cypher$internal$compiler$v2_0$spi$ExceptionTranslatingQueryContext$ExceptionTr
anslatingOperations$$super$setProperty(ExceptionTranslatingQueryContext.scala:121)
at
org.neo4j.cypher.internal.compiler.v2_0.spi.ExceptionTranslatingQueryContext$ExceptionTranslatingOperations$$anonfun$setProperty$1.apply$mcV$sp(ExceptionTranslatingQueryContext.scala:121)
at
org.neo4j.cypher.internal.compiler.v2_0.spi.ExceptionTranslatingQueryContext$ExceptionTranslatingOperations$$anonfun$setProperty$1.apply(ExceptionTranslatingQueryContext.scala:121)
at
org.neo4j.cypher.internal.compiler.v2_0.spi.ExceptionTranslatingQueryContext$ExceptionTranslatingOperations$$anonfun$setProperty$1.apply(ExceptionTranslatingQueryContext.scala:121)
at
org.neo4j.cypher.internal.compiler.v2_0.spi.ExceptionTranslatingQueryContext.org$neo4j$cypher$internal$compiler$v2_0$spi$ExceptionTranslatingQueryContext$$translateException(ExceptionTranslatingQu
eryContext.scala:149)
at
org.neo4j.cypher.internal.compiler.v2_0.spi.ExceptionTranslatingQueryContext$ExceptionTranslatingOperations.setProperty(ExceptionTranslatingQueryContext.scala:121)
at
org.neo4j.cypher.internal.compiler.v2_0.spi.UpdateCountingQueryContext$CountingOps.setProperty(UpdateCountingQueryContext.scala:129)
at
org.neo4j.cypher.internal.compiler.v2_0.mutation.PropertySetAction.exec(PropertySetAction.scala:44)
at
org.neo4j.cypher.internal.compiler.v2_0.mutation.MergeNodeAction$$anonfun$exec$1.apply(MergeNodeAction.scala:68)
at
org.neo4j.cypher.internal.compiler.v2_0.mutation.MergeNodeAction$$anonfun$exec$1.apply(MergeNodeAction.scala:68)
at scala.collection.immutable.List.foreach(List.scala:318)
at
org.neo4j.cypher.internal.compiler.v2_0.mutation.MergeNodeAction.exec(MergeNodeAction.scala:67)
at
org.neo4j.cypher.internal.compiler.v2_0.pipes.ExecuteUpdateCommandsPipe.org$neo4j$cypher$internal$compiler$v2_0$pipes$ExecuteUpdateCommandsPipe$$exec(ExecuteUpdateCommandsPipe.scala:56)
at
org.neo4j.cypher.internal.compiler.v2_0.pipes.ExecuteUpdateCommandsPipe$$anonfun$org$neo4j$cypher$internal$compiler$v2_0$pipes$ExecuteUpdateCommandsPipe$$executeMutationCommands$1$$anonfun$apply$2
.apply(ExecuteUpdateCommandsPipe.scala:45)
at
org.neo4j.cypher.internal.compiler.v2_0.pipes.ExecuteUpdateCommandsPipe$$anonfun$org$neo4j$cypher$internal$compiler$v2_0$pipes$ExecuteUpdateCommandsPipe$$executeMutationCommands$1$$anonfun$apply$2
.apply(ExecuteUpdateCommandsPipe.scala:45)
at scala.collection.Iterator$$anon$13.hasNext(Iterator.scala:371)
at scala.collection.Iterator$$anon$13.hasNext(Iterator.scala:371)
at
org.neo4j.cypher.internal.compiler.v2_0.ClosingIterator$$anonfun$hasNext$1.apply$mcZ$sp(ClosingIterator.scala:38)
at
org.neo4j.cypher.internal.compiler.v2_0.ClosingIterator$$anonfun$hasNext$1.apply(ClosingIterator.scala:37)
at
org.neo4j.cypher.internal.compiler.v2_0.ClosingIterator$$anonfun$hasNext$1.apply(ClosingIterator.scala:37)
at
org.neo4j.cypher.internal.compiler.v2_0.ClosingIterator.failIfThrows(ClosingIterator.scala:91)
at
org.neo4j.cypher.internal.compiler.v2_0.ClosingIterator.hasNext(ClosingIterator.scala:37)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at
org.neo4j.cypher.internal.compiler.v2_0.ClosingIterator.foreach(ClosingIterator.scala:33)
at scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:48)
at scala.collection.mutable.ListBuffer.$plus$plus$eq(ListBuffer.scala:176)
at scala.collection.mutable.ListBuffer.$plus$plus$eq(ListBuffer.scala:45)
at scala.collection.TraversableOnce$class.to(TraversableOnce.scala:273)
at
org.neo4j.cypher.internal.compiler.v2_0.ClosingIterator.to(ClosingIterator.scala:33)
at scala.collection.TraversableOnce$class.toList(TraversableOnce.scala:257)
at
org.neo4j.cypher.internal.compiler.v2_0.ClosingIterator.toList(ClosingIterator.scala:33)
at
org.neo4j.cypher.internal.compiler.v2_0.EagerPipeExecutionResult.<init>(EagerPipeExecutionResult.scala:30)
at
org.neo4j.cypher.internal.compiler.v2_0.executionplan.ExecutionPlanBuilder$$anonfun$3.apply(ExecutionPlanBuilder.scala:137)
at
org.neo4j.cypher.internal.compiler.v2_0.executionplan.ExecutionPlanBuilder$$anonfun$3.apply(ExecutionPlanBuilder.scala:135)
at
org.neo4j.cypher.internal.compiler.v2_0.executionplan.ExecutionPlanBuilder$$anon$6.execute(ExecutionPlanBuilder.scala:50)
at
org.neo4j.cypher.internal.ExecutionPlanWrapperForV2_0.execute(CypherCompiler.scala:93)
at org.neo4j.cypher.ExecutionEngine.execute(ExecutionEngine.scala:61)
at org.neo4j.cypher.ExecutionEngine.execute(ExecutionEngine.scala:65)
at
org.neo4j.cypher.javacompat.ExecutionEngine.execute(ExecutionEngine.java:78)
My Cypher version of the unique insert looks like this:
public Node getOrCreateUniqueNode(String indexName, String key,
Object value, final Map<String, Object> nodeProperties) {
if (ValidationUtils.isValid(indexName, key, value)) {
Node result = null;
ResourceIterator<Node> resultIterator = null;
try (Transaction tx = graphDb.beginTx()) {
String queryString = "MERGE (n:" + indexName + " {" + key
+ ": {var}}) RETURN n";
Map<String, Object> parameters = new HashMap<>();
parameters.put("var", value);
resultIterator = executionEngine.execute(queryString,
parameters).columnAs("n");
result = resultIterator.next();
tx.success();
return result;
} catch (Exception e) {
e.printStackTrace();
}
}
return null;
}
indexName is something like "USER" (provided from an enum that extends
Label, like MyEnum.USER.name() )
key is something like "username"
and value is something like "Bob"
Note that the nodeProperties parameter isn't getting used at this point,
I'm just trying to create the nodes.
The exception starts at call resultIterator =
executionEngine.execute(queryString, parameters).columnAs("n");
The query string looks something like "MERGE (n:GLOBAL_ID {value: {var}})
RETURN n" before the var gets substituted.
Does it matter if the string var has characters like '/' at the beginning?
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