本文整理了Java中org.neo4j.graphdb.Relationship.getId
方法的一些代码示例,展示了Relationship.getId
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。Relationship.getId
方法的具体详情如下:
包路径:org.neo4j.graphdb.Relationship
类名称:Relationship
方法名:getId
[英]Returns the unique id of this relationship. Ids are garbage collected over time so they are only guaranteed to be unique during a specific time span: if the relationship is deleted, it's likely that a new relationship at some point will get the old id. Note: This makes relationship ids brittle as public APIs.
[中]返回此关系的唯一id。id会随着时间的推移被垃圾收集,因此它们只能保证在特定的时间跨度内是唯一的:如果关系被删除,很可能新的关系在某个时候会获得旧id。注意:这使得关系id作为公共API变得脆弱。
代码示例来源:origin: neo4j/neo4j
@Override
public long id( PropertyContainer entity )
{
return ((Relationship) entity).getId();
}
};
代码示例来源:origin: neo4j/neo4j
@Override
public String getIdentity()
{
return Long.toString( rel.getId() );
}
代码示例来源:origin: neo4j/neo4j
@Override
long getId( Path source )
{
return source.lastRelationship().getId();
}
代码示例来源:origin: neo4j/neo4j
@SuppressWarnings( "boxing" )
public IndexedEntityRepresentation( Relationship rel, String key, String value,
IndexRepresentation indexRepresentation )
{
this( new RelationshipRepresentation( rel ), rel.getId(), key, value, indexRepresentation );
}
代码示例来源:origin: neo4j/neo4j
public int compareTo( Object rel )
{
Relationship r = (Relationship) rel;
return Long.compare( this.getId(), r.getId() );
}
代码示例来源:origin: neo4j/neo4j
@Override
public boolean equals( Object o )
{
return o instanceof Relationship && this.getId() == ((Relationship) o).getId();
}
代码示例来源:origin: neo4j/neo4j
@Mapping( "metadata" )
public MapRepresentation metadata()
{
if ( isDeleted() )
{
return new MapRepresentation( map( "id", rel.getId(), "deleted", Boolean.TRUE ) );
}
else
{
return new MapRepresentation( map( "id", rel.getId(), "type", rel.getType().name() ) );
}
}
代码示例来源:origin: neo4j/neo4j
private static void getRelationshipByIdReadOnly( long index )
{
Relationship value = graphDbReadOnly.getRelationshipById( index );
fail( String.format( "Returned Relationship [0x%x] for index 0x%x (int value: 0x%x)",
value.getId(), index, (int) index ) );
}
}
代码示例来源:origin: neo4j/neo4j
private static Relationship mockRelationship( long id, Node start, String type, Node end, Properties properties )
{
Relationship relationship = mockPropertyContainer( Relationship.class, properties );
when( relationship.getId() ).thenReturn( id );
when( relationship.getStartNode() ).thenReturn( start );
when( relationship.getEndNode() ).thenReturn( end );
when( relationship.getType() ).thenReturn( RelationshipType.withName( type ) );
return relationship;
}
代码示例来源:origin: neo4j/neo4j
@Test
public void correctlySaysRelIsDeleted()
{
// Given
state.relationshipDoDelete( 1L, 1, 1L, 2L );
Relationship rel = mock( Relationship.class );
when( rel.getId() ).thenReturn( 1L );
ops.withRelationship( 1L, 1L, 1, 2L );
// When & Then
assertThat( snapshot().isDeleted( rel ), equalTo( true ) );
}
代码示例来源:origin: neo4j/neo4j
private static Function<Node,StartRelationship> loop( String type )
{
return node ->
{
RelationshipType relType = withName( type );
return new StartRelationship(
node.createRelationshipTo( node, relType ).getId(),
Direction.BOTH,
relType );
};
}
}
代码示例来源:origin: neo4j/neo4j
@Override
protected long createPropertyContainer()
{
return db.createNode().createRelationshipTo( db.createNode(), withName( "FOO" ) ).getId();
}
代码示例来源:origin: neo4j/neo4j
long createRelationshipWithProperty( long firstNodeId, long secondNodeId, String propertyKey, Object propertyValue )
{
Node first = db.getNodeById( firstNodeId );
Node second = db.getNodeById( secondNodeId );
Relationship relationship = first.createRelationshipTo( second, RELTYPE );
relationship.setProperty( propertyKey, propertyValue );
return relationship.getId();
}
代码示例来源:origin: neo4j/neo4j
private static long createRelationship( GraphDatabaseService db )
{
long relationshipId;
try ( Transaction tx = db.beginTx() )
{
Node start = db.createNode( Label.label( System.currentTimeMillis() + "" ) );
Node end = db.createNode( Label.label( System.currentTimeMillis() + "" ) );
relationshipId = start.createRelationshipTo( end, withName( "KNOWS" ) ).getId();
tx.success();
}
return relationshipId;
}
代码示例来源:origin: neo4j/neo4j
private static Function<Node,StartRelationship> outgoing( String type )
{
return node ->
{
GraphDatabaseService db = node.getGraphDatabase();
RelationshipType relType = withName( type );
return new StartRelationship(
node.createRelationshipTo( db.createNode(), relType ).getId(),
Direction.OUTGOING,
relType );
};
}
代码示例来源:origin: neo4j/neo4j
private static Function<Node,StartRelationship> incoming( String type )
{
return node ->
{
GraphDatabaseService db = node.getGraphDatabase();
RelationshipType relType = withName( type );
return new StartRelationship(
db.createNode().createRelationshipTo( node, relType ).getId(),
Direction.INCOMING,
relType );
};
}
代码示例来源:origin: neo4j/neo4j
private Runnable getById()
{
return () ->
{
dbr.getGraphDatabaseAPI().getNodeById( node.getId() );
dbr.getGraphDatabaseAPI().getRelationshipById( relationship.getId() );
};
}
代码示例来源:origin: neo4j/neo4j
private long initWithRel( GraphDatabaseService db )
{
try ( Transaction tx = db.beginTx() )
{
Node node = db.createNode();
node.setProperty( "a", "prop" );
Relationship rel = node.createRelationshipTo( db.createNode(), RelationshipType.withName( "T" ) );
long id = rel.getId();
tx.success();
return id;
}
}
代码示例来源:origin: neo4j/neo4j
@Test
@Title( "Remove properties from a relationship" )
@Graph( nodes = {@NODE( name = "Romeo", setNameProperty = true ),
@NODE( name = "Juliet", setNameProperty = true )}, relationships = {
@REL( start = "Romeo", end = "Juliet", type = "LOVES", properties = {
@PROP( key = "cost", value = "high", type = GraphDescription.PropType.STRING )} )} )
public void shouldReturn204WhenPropertiesAreRemovedFromRelationship()
{
Relationship loves = getFirstRelationshipFromRomeoNode();
gen().expectedStatus( Status.NO_CONTENT.getStatusCode() )
.delete( functionalTestHelper.relationshipPropertiesUri( loves.getId() ) ).entity();
}
代码示例来源:origin: neo4j/neo4j
public long createRelationship( String type, long startNodeId, long endNodeId )
{
try ( Transaction tx = database.getGraph().beginTransaction( implicit, AnonymousContext.writeToken() ) )
{
Node startNode = database.getGraph().getNodeById( startNodeId );
Node endNode = database.getGraph().getNodeById( endNodeId );
Relationship relationship = startNode.createRelationshipTo( endNode, RelationshipType.withName( type ) );
tx.success();
return relationship.getId();
}
}
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