本文整理了Java中org.neo4j.graphdb.Relationship.getStartNode方法的一些代码示例，展示了Relationship.getStartNode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.getStartNode方法的具体详情如下：
包路径：org.neo4j.graphdb.Relationship
类名称：Relationship
方法名：getStartNode

Relationship.getStartNode介绍

[英]Returns the start node of this relationship. For a definition of how start node relates to Direction as arguments to the Node#getRelationships() in Node, see the class documentation of Relationship.
[中]返回此关系的开始节点。有关开始节点如何作为节点中节点#getRelationships（）的参数与方向关联的定义，请参阅Relationship的类文档。

代码示例

代码示例来源：origin: neo4j/neo4j

static boolean matchDirection( Direction dir, Node start, Relationship rel )
{
  switch ( dir )
  {
    case INCOMING:
      return rel.getEndNode().equals( start );
    case OUTGOING:
      return rel.getStartNode().equals( start );
    case BOTH:
      return true;
    default:
      throw new IllegalArgumentException( "Unknown direction: " + dir );
  }
}

代码示例来源：origin: neo4j/neo4j

private static String relToString( Relationship rel )
{
  return rel.getStartNode() + "--" + rel.getType() + "-->"
      + rel.getEndNode();
}

代码示例来源：origin: neo4j/neo4j

private void appendRelationship( PrintWriter out, Relationship rel )
{
  out.print( "create (" );
  out.print( identifier( rel.getStartNode() ) );
  out.print( ")-[:" );
  out.print( quote( rel.getType().name() ) );
  formatProperties( out, rel );
  out.print( "]->(" );
  out.print( identifier( rel.getEndNode() ) );
  out.println( ")" );
}

代码示例来源：origin: neo4j/neo4j

private boolean isLoop( Relationship r )
{
  return r.getStartNode().equals( r.getEndNode() );
}

代码示例来源：origin: neo4j/neo4j

startNode = endNode;
endNode = nodeIterator.next();
if ( rel.getStartNode().equals(startNode) && rel.getEndNode().equals(endNode) )

代码示例来源：origin: neo4j/neo4j

public void add( Relationship rel )
{
  final long id = rel.getId();
  if ( !relationships.containsKey( id ) )
  {
    addRel( id, rel );
    add( rel.getStartNode() );
    add( rel.getEndNode() );
  }
}

代码示例来源：origin: neo4j/neo4j

nodes.add( relationship.getStartNode() );
nodes.add( relationship.getEndNode() );

代码示例来源：origin: neo4j/neo4j

private static Relationship createRelationship( long startNodeId, long endNodeId )
{
  Relationship relationship = mock( Relationship.class );
  Node startNode = createNode( startNodeId );
  Node endNode = createNode( endNodeId );
  when( relationship.getStartNode() ).thenReturn( startNode );
  when( relationship.getEndNode() ).thenReturn( endNode );
  return relationship;
}

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

RelationshipData( Relationship relationship )
  {
    this.startNode = relationship.getStartNode();
    this.type = relationship.getType().name();
    this.endNode = relationship.getEndNode();
  }
}

代码示例来源：origin: neo4j/neo4j

private Runnable getNodesFromRelationship()
{
  return () ->
  {
    relationship.getEndNode();
    relationship.getStartNode();
    relationship.getNodes();
    relationship.getOtherNode( node );
  };
}

代码示例来源：origin: neo4j/neo4j

Integer i1 = nodeIndexes.get( relationship.getStartNode() );
Integer i2 = nodeIndexes.get( relationship.getEndNode() );
if ( i1 == null || i2 == null )

代码示例来源：origin: neo4j/neo4j

@Override
  public String represent( Relationship item )
  {
    return nodes.represent( item.getStartNode() ) + " "
        + rel.represent( item ) + " "
        + nodes.represent( item.getEndNode() );
  }
}

代码示例来源：origin: neo4j/neo4j

@Override
  public String represent( Relationship item )
  {
    return nodes.represent( item.getStartNode() ) + " "
        + rel.represent( item ) + " "
        + nodes.represent( item.getEndNode() );
  }
}

代码示例来源：origin: neo4j/neo4j

out.writeStringField( "startNode", Long.toString( relationship.getStartNode().getId() ) );
out.writeStringField( "endNode", Long.toString( relationship.getEndNode().getId() ) );
writeProperties( out, relationship );

代码示例来源：origin: neo4j/neo4j

public static Link link( Relationship relationship, Node node )
{
  if ( relationship.getStartNode().getId() == node.getId() )
  {
    return new Link( node, relationship );
  }
  if ( relationship.getEndNode().getId() == node.getId() )
  {
    return new Link( relationship, node );
  }
  throw illegalArgument( "%s is neither the start node nor the end node of %s", node, relationship );
}

代码示例来源：origin: neo4j/neo4j

public Node checkNode( Node node )
{
  if ( isStartNode )
  {
    if ( node.getId() != relationship.getEndNode().getId() )
    {
      throw illegalArgument( "%s is not the end node of %s", node, relationship );
    }
  }
  else
  {
    if ( node.getId() != relationship.getStartNode().getId() )
    {
      throw illegalArgument( "%s is not the start node of %s", node, relationship );
    }
  }
  return this.node;
}

代码示例来源：origin: neo4j/neo4j

if ( rel.getStartNode().equals( node2 ) && rel.getEndNode().equals( node2 ) )
else if ( rel.getStartNode().equals( node2 ) )
if ( rel.getStartNode().equals( node2 ) && rel.getEndNode().equals( node2 ) )
else if ( rel.getStartNode().equals( node2 ) )
if ( rel.getStartNode().equals( node2 ) && rel.getEndNode().equals( node2 ) )

代码示例来源：origin: neo4j/neo4j

@Test
public void shouldMapDirectRelationship()
{
  // Given
  Node start, end;
  Relationship relationship;
  try ( Transaction tx = db.beginTx() )
  {
    start = db.createNode();
    end = db.createNode();
    relationship = start.createRelationshipTo( end, RelationshipType.withName( "R" ) );
    tx.success();
  }
  RelationshipValue relationshipValue =
      VirtualValues.relationshipValue( relationship.getId(), nodeValue( start.getId(),
          Values.EMPTY_TEXT_ARRAY, EMPTY_MAP ), nodeValue( start.getId(),
          Values.EMPTY_TEXT_ARRAY, EMPTY_MAP ), stringValue( "R" ), EMPTY_MAP );
  // When
  Relationship coreAPIRelationship = mapper.mapRelationship( relationshipValue );
  // Then
  try ( Transaction ignore = db.beginTx() )
  {
    assertThat( coreAPIRelationship.getId(), equalTo( relationship.getId() ) );
    assertThat( coreAPIRelationship.getStartNode(), equalTo( start ) );
    assertThat( coreAPIRelationship.getEndNode(), equalTo( end ) );
  }
}

代码示例来源：origin: neo4j-contrib/neo4j-apoc-procedures

public WeightedRelationshipResult(Relationship rel, double weight) {
    this.rel = rel;
    this.weight = weight;
    this.start = rel.getStartNode();
    this.end = rel.getEndNode();
  }
}