本文整理了Java中org.neo4j.internal.kernel.api.Write.nodeCreate()方法的一些代码示例，展示了Write.nodeCreate()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Write.nodeCreate()方法的具体详情如下：
包路径：org.neo4j.internal.kernel.api.Write
类名称：Write
方法名：nodeCreate

Write.nodeCreate介绍

[英]Create a node.
[中]创建一个节点。

代码示例

代码示例来源：origin: neo4j/neo4j

private long createNode( Write write, int... labels ) throws KernelException
  {
    long nodeId = write.nodeCreate();
    for ( int label : labels )
    {
      write.nodeAddLabel( nodeId, label );
    }
    return nodeId;
  }
}

代码示例来源：origin: neo4j/neo4j

private long createNode() throws KernelException
{
  return transaction.dataWrite().nodeCreate();
}

代码示例来源：origin: neo4j/neo4j

@Override
public Node createNode()
{
  KernelTransaction transaction = statementContext.getKernelTransactionBoundToThisThread( true );
  try ( Statement ignore = transaction.acquireStatement() )
  {
    return newNodeProxy( transaction.dataWrite().nodeCreate() );
  }
  catch ( InvalidTransactionTypeKernelException e )
  {
    throw new ConstraintViolationException( e.getMessage(), e );
  }
}

代码示例来源：origin: neo4j/neo4j

private long createLabeledNode( int labelId ) throws KernelException
{
  long node = transaction.dataWrite().nodeCreate();
  transaction.dataWrite().nodeAddLabel( node, labelId );
  return node;
}

代码示例来源：origin: neo4j/neo4j

private void createNodeWithProperty( Transaction tx, int propId1 ) throws KernelException
{
  long node = tx.dataWrite().nodeCreate();
  tx.dataWrite().nodeSetProperty( node, propId1, Values.intValue( 42 ) );
}

代码示例来源：origin: neo4j/neo4j

private long createNodeWithValue( Value value ) throws KernelException
{
  Write write = dataWriteInNewTransaction();
  long nodeId = write.nodeCreate();
  write.nodeAddLabel( nodeId, labelId );
  write.nodeSetProperty( nodeId, propertyId1, value );
  commit();
  return nodeId;
}

代码示例来源：origin: neo4j/neo4j

private long createNodeWithValues( Value value1, Value value2 ) throws KernelException
{
  Write write = dataWriteInNewTransaction();
  long nodeId = write.nodeCreate();
  write.nodeAddLabel( nodeId, labelId );
  write.nodeSetProperty( nodeId, propertyId1, value1 );
  write.nodeSetProperty( nodeId, propertyId2, value2 );
  commit();
  return nodeId;
}

代码示例来源：origin: neo4j/neo4j

private long createLabeledNode( Transaction transaction, String label ) throws KernelException
{
  long node = transaction.dataWrite().nodeCreate();
  int labelId = transaction.tokenWrite().labelGetOrCreateForName( label );
  transaction.dataWrite().nodeAddLabel( node, labelId );
  return node;
}

代码示例来源：origin: neo4j/neo4j

private long createNode( Transaction transaction, String key, Object value ) throws KernelException
{
  long node = transaction.dataWrite().nodeCreate();
  int propertyKeyId = transaction.tokenWrite().propertyKeyGetOrCreateForName( key );
  transaction.dataWrite().nodeSetProperty( node, propertyKeyId, Values.of( value ) );
  return node;
}

代码示例来源：origin: neo4j/neo4j

@Test
public void shouldSeeNodeExistingInTxOnly() throws Exception
{
  try ( Transaction tx = beginTransaction() )
  {
    long node = tx.dataWrite().nodeCreate();
    assertTrue( tx.dataRead().nodeExists( node ) );
  }
}

代码示例来源：origin: neo4j/neo4j

@Test
public void shouldReturnRelsWhenAskingForRelsWhereOnlySomeTypesExistInCurrentRel() throws Exception
{
  Transaction transaction = newTransaction( AnonymousContext.writeToken() );
  int relType1 = transaction.tokenWrite().relationshipTypeGetOrCreateForName( "Type1" );
  int relType2 = transaction.tokenWrite().relationshipTypeGetOrCreateForName( "Type2" );
  long refNode = transaction.dataWrite().nodeCreate();
  long otherNode = transaction.dataWrite().nodeCreate();
  long theRel = transaction.dataWrite().relationshipCreate(  refNode, relType1, otherNode );
  assertRels( nodeGetRelationships( transaction, refNode, OUTGOING, new int[]{relType2,relType1} ), theRel );
  commit();
}

代码示例来源：origin: neo4j/neo4j

@Parameterized.Parameters( name = "{0}" )
public static Collection<Object[]> parameters()
{
  // Some samples of operations that should react to transaction killing. Not exhaustive.
  return Arrays.asList(
      operation( "nodeExists", ( read, write, schema ) -> read.nodeExists( 0 ) ),
      operation( "singleRelationship", ( read, write, schema ) -> read.singleRelationship( 0, null ) ),
      operation( "nodeCreate", ( read, write, schema ) -> write.nodeCreate() ),
      operation( "relationshipSetProperty", ( read, write, schema ) -> write.relationshipSetProperty( 0, 2, Values.longValue( 42 ) ) ),
      operation( "indexesGetAll", ( read, write, schema ) -> schema.indexesGetAll() ) );
}

代码示例来源：origin: neo4j/neo4j

@Test
public void createIndexForAnotherLabelWhileHoldingSharedLockOnOtherLabel() throws KernelException
{
  TokenWrite tokenWrite = tokenWriteInNewTransaction();
  int label2 = tokenWrite.labelGetOrCreateForName( "Label2" );
  Write write = dataWriteInNewTransaction();
  long nodeId = write.nodeCreate();
  write.nodeAddLabel( nodeId, label2 );
  schemaWriteInNewTransaction().indexCreate( descriptor );
  commit();
}

代码示例来源：origin: neo4j/neo4j

private Pair<Long,Value> nodeWithProp( Transaction tx, Object value ) throws Exception
{
  Write write = tx.dataWrite();
  long node = write.nodeCreate();
  write.nodeAddLabel( node, tx.tokenWrite().labelGetOrCreateForName( "Node" ) );
  Value val = Values.of( value );
  write.nodeSetProperty( node, tx.tokenWrite().propertyKeyGetOrCreateForName( "prop" ), val );
  return Pair.of( node, val );
}

代码示例来源：origin: neo4j/neo4j

private Pair<Long,Value> nodeWithProp( Transaction tx, Object value ) throws Exception
  {
    Write write = tx.dataWrite();
    long node = write.nodeCreate();
    write.nodeAddLabel( node, tx.tokenWrite().labelGetOrCreateForName( "Node" ) );
    Value val = Values.of( value );
    write.nodeSetProperty( node, tx.tokenWrite().propertyKeyGetOrCreateForName( "prop" ), val );
    return Pair.of( node, val );
  }
}

代码示例来源：origin: neo4j/neo4j

@Test
public void txReturnsCorrectIdWhenRolledBack() throws Exception
{
  executeDummyTxs( db, 42 );
  org.neo4j.internal.kernel.api.Transaction tx = newTransaction( AUTH_DISABLED );
  tx.dataWrite().nodeCreate();
  tx.failure();
  assertEquals( KernelTransaction.ROLLBACK, tx.closeTransaction() );
  assertFalse( tx.isOpen() );
}

代码示例来源：origin: neo4j/neo4j

@Test
public void txReturnsCorrectIdWhenMarkedForTermination() throws Exception
{
  executeDummyTxs( db, 42 );
  org.neo4j.internal.kernel.api.Transaction tx = newTransaction( AUTH_DISABLED );
  tx.dataWrite().nodeCreate();
  tx.markForTermination( Status.Transaction.Terminated );
  assertEquals( KernelTransaction.ROLLBACK, tx.closeTransaction() );
  assertFalse( tx.isOpen() );
}

代码示例来源：origin: neo4j/neo4j

@Test
public void txReturnsCorrectIdWhenFailedAndMarkedForTermination() throws Exception
{
  executeDummyTxs( db, 42 );
  org.neo4j.internal.kernel.api.Transaction tx = newTransaction( AUTH_DISABLED );
  tx.dataWrite().nodeCreate();
  tx.failure();
  tx.markForTermination( Status.Transaction.Terminated );
  assertEquals( KernelTransaction.ROLLBACK, tx.closeTransaction() );
  assertFalse( tx.isOpen() );
}

代码示例来源：origin: neo4j/neo4j

private long createPersonNode( KernelTransaction ktx, Object value )
    throws KernelException
{
  int labelId = ktx.tokenWrite().labelGetOrCreateForName( PERSON_LABEL );
  int propertyKeyId = ktx.tokenWrite().propertyKeyGetOrCreateForName( NAME_PROPERTY );
  long nodeId = ktx.dataWrite().nodeCreate();
  ktx.dataWrite().nodeAddLabel( nodeId, labelId );
  ktx.dataWrite().nodeSetProperty( nodeId, propertyKeyId, Values.of( value ) );
  return nodeId;
}

代码示例来源：origin: neo4j/neo4j

@Test
public void txReturnsCorrectIdWhenCommitted() throws Exception
{
  executeDummyTxs( db, 42 );
  org.neo4j.internal.kernel.api.Transaction tx = newTransaction( AUTH_DISABLED );
  tx.dataWrite().nodeCreate();
  tx.success();
  long previousCommittedTxId = lastCommittedTxId( db );
  assertEquals( previousCommittedTxId + 1, tx.closeTransaction() );
  assertFalse( tx.isOpen() );
}