本文整理了Java中org.neo4j.internal.kernel.api.Write.relationshipRemoveProperty()方法的一些代码示例，展示了Write.relationshipRemoveProperty()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.relationshipRemoveProperty()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：relationshipRemoveProperty

Write.relationshipRemoveProperty介绍

[英]Remove a property from a relationship
[中]从关系中删除属性

代码示例

代码示例来源：origin: neo4j/neo4j

@Override
public Object removeProperty( String key )
{
  KernelTransaction transaction = spi.kernelTransaction();
  try ( Statement ignore = transaction.acquireStatement() )
  {
    int propertyKeyId = transaction.tokenWrite().propertyKeyGetOrCreateForName( key );
    return transaction.dataWrite().relationshipRemoveProperty( id, propertyKeyId ).asObjectCopy();
  }
  catch ( EntityNotFoundException e )
  {
    throw new NotFoundException( e );
  }
  catch ( IllegalTokenNameException e )
  {
    throw new IllegalArgumentException( format( "Invalid property key '%s'.", key ), e );
  }
  catch ( InvalidTransactionTypeKernelException e )
  {
    throw new ConstraintViolationException( e.getMessage(), e );
  }
  catch ( AutoIndexingKernelException e )
  {
    throw new IllegalStateException( "Auto indexing encountered a failure while removing property: "
                     + e.getMessage(), e );
  }
}

代码示例来源：origin: neo4j/neo4j

assertThat( tx.dataWrite().relationshipRemoveProperty( relationshipId, token ),
    equalTo( intValue( 42 ) ) );
assertThat( tx.dataWrite().relationshipRemoveProperty( relationshipId, token ),
    equalTo( NO_VALUE ) );
tx.success();

代码示例来源：origin: neo4j/neo4j

@Test
  public void shouldBeAbleToRemoveResetAndTwiceRemovePropertyOnRelationship() throws Exception
  {
    // given
    Transaction transaction = newTransaction( AnonymousContext.writeToken() );
    int prop = transaction.tokenWrite().propertyKeyGetOrCreateForName( "foo" );
    int type = transaction.tokenWrite().relationshipTypeGetOrCreateForName( "RELATED" );

    long startNodeId = transaction.dataWrite().nodeCreate();
    long endNodeId = transaction.dataWrite().nodeCreate();
    long rel = transaction.dataWrite().relationshipCreate( startNodeId, type, endNodeId );
    transaction.dataWrite().relationshipSetProperty( rel, prop, Values.of( "bar" ) );

    commit();

    // when
    Write write = dataWriteInNewTransaction();
    write.relationshipRemoveProperty( rel, prop );
    write.relationshipSetProperty( rel, prop, Values.of( "bar" ) );
    write.relationshipRemoveProperty( rel, prop );
    write.relationshipRemoveProperty( rel, prop );

    commit();

    // then
    transaction = newTransaction();
    assertThat( relationshipGetProperty(transaction, rel, prop ), equalTo( Values.NO_VALUE ) );
    commit();
  }
}

代码示例来源：origin: neo4j/neo4j

@Test
public void shouldRemoveNonExistingPropertyFromRelationship() throws Exception
{
  // Given
  long  relationshipId;
  String propertyKey = "prop";
  try ( org.neo4j.graphdb.Transaction tx = graphDb.beginTx() )
  {
    Node node1 = graphDb.createNode();
    Node node2 = graphDb.createNode();
    Relationship proxy = node1.createRelationshipTo( node2, RelationshipType.withName( "R" ) );
    relationshipId = proxy.getId();
    tx.success();
  }
  // When
  try ( Transaction tx = beginTransaction() )
  {
    int token = tx.token().propertyKeyGetOrCreateForName( propertyKey );
    assertThat( tx.dataWrite().relationshipRemoveProperty( relationshipId, token ),
        equalTo( NO_VALUE ) );
    tx.success();
  }
  // Then
  try ( org.neo4j.graphdb.Transaction ignore = graphDb.beginTx() )
  {
    assertFalse( graphDb.getRelationshipById( relationshipId ).hasProperty( "prop" ) );
  }
}

代码示例来源：origin: neo4j/neo4j

@Test
public void shouldRemovePropertyFromRelationship() throws Exception
{
  // Given
  long  relationshipId;
  String propertyKey = "prop";
  try ( org.neo4j.graphdb.Transaction tx = graphDb.beginTx() )
  {
    Node node1 = graphDb.createNode();
    Node node2 = graphDb.createNode();
    Relationship proxy = node1.createRelationshipTo( node2, RelationshipType.withName( "R" ) );
    relationshipId = proxy.getId();
    proxy.setProperty( propertyKey, 42 );
    tx.success();
  }
  // When
  try ( Transaction tx = beginTransaction() )
  {
    int token = tx.token().propertyKeyGetOrCreateForName( propertyKey );
    assertThat( tx.dataWrite().relationshipRemoveProperty( relationshipId, token ),
        equalTo( intValue( 42 ) ) );
    tx.success();
  }
  // Then
  try ( org.neo4j.graphdb.Transaction ignore = graphDb.beginTx() )
  {
    assertFalse( graphDb.getRelationshipById( relationshipId ).hasProperty( "prop" ) );
  }
}

代码示例来源：origin: neo4j/neo4j

@Test
public void shouldNotAllowModifyingPropertiesOnDeletedRelationship() throws Exception
{
  // given
  Transaction transaction = newTransaction( AnonymousContext.writeToken() );
  int prop1 = transaction.tokenWrite().propertyKeyGetOrCreateForName( "prop1" );
  int type = transaction.tokenWrite().relationshipTypeGetOrCreateForName( "RELATED" );
  long startNodeId = transaction.dataWrite().nodeCreate();
  long endNodeId = transaction.dataWrite().nodeCreate();
  long rel = transaction.dataWrite().relationshipCreate( startNodeId, type, endNodeId );
  transaction.dataWrite().relationshipSetProperty( rel, prop1, Values.stringValue( "As" ) );
  transaction.dataWrite().relationshipDelete( rel );
  // When
  try
  {
    transaction.dataWrite().relationshipRemoveProperty( rel, prop1 );
    fail( "Should have failed." );
  }
  catch ( EntityNotFoundException e )
  {
    assertThat( e.getMessage(), equalTo( "Unable to load RELATIONSHIP with id " + rel + "." ) );
  }
  commit();
}

代码示例来源：origin: neo4j/neo4j

tx.dataWrite().relationshipRemoveProperty( relationship, prop1 );
assertTrue( hasProperties( cursor, tx ) );
tx.dataWrite().relationshipRemoveProperty( relationship, prop2 );
assertTrue( hasProperties( cursor, tx ) );
tx.dataWrite().relationshipRemoveProperty( relationship, prop3 );
assertFalse( hasProperties( cursor, tx ) );

代码示例来源：origin: neo4j/neo4j

assertEquals( tx.dataWrite().relationshipRemoveProperty( relationshipId, propToken ),
    stringValue( "hello" ) );
assertEquals( tx.dataWrite().relationshipSetProperty( relationshipId, propToken, stringValue( "world" ) ),

代码示例来源：origin: neo4j/neo4j

assertEquals( tx.dataWrite().relationshipRemoveProperty( relationshipId, propToken ),
    stringValue( "hello" ) );
try ( RelationshipScanCursor relationship = tx.cursors().allocateRelationshipScanCursor();

代码示例来源：origin: org.neo4j/neo4j-kernel

@Override
public Object removeProperty( String key )
{
  KernelTransaction transaction = spi.kernelTransaction();
  try ( Statement ignore = transaction.acquireStatement() )
  {
    int propertyKeyId = transaction.tokenWrite().propertyKeyGetOrCreateForName( key );
    return transaction.dataWrite().relationshipRemoveProperty( id, propertyKeyId ).asObjectCopy();
  }
  catch ( EntityNotFoundException e )
  {
    throw new NotFoundException( e );
  }
  catch ( IllegalTokenNameException e )
  {
    throw new IllegalArgumentException( format( "Invalid property key '%s'.", key ), e );
  }
  catch ( InvalidTransactionTypeKernelException e )
  {
    throw new ConstraintViolationException( e.getMessage(), e );
  }
  catch ( AutoIndexingKernelException e )
  {
    throw new IllegalStateException( "Auto indexing encountered a failure while removing property: "
                     + e.getMessage(), e );
  }
}