Examples of org.neo4j.graphdb.RelationshipType

org.neo4j.graphdb.RelationshipType
}
It's very important to note that a relationship type is uniquely identified by its name, not by any particular instance that implements this interface. This means that the proper way to check if two relationship types are equal is by invoking equals() on their {@link #name names}, NOT by using Java's identity operator (==) or equals() on the relationship type instances. A consequence of this is that you can NOT use relationship types in hashed collections such as {@link java.util.HashMap HashMap} and {@link java.util.HashSet HashSet}.
However, you usually want to check whether a specific relationship instance is of a certain type. That is best achieved with the {@link Relationship#isType Relationship.isType} method, such as:
```
if ( rel.isType( MyRelationshipTypes.CONTAINED_IN ) ) { ... } 
```

    }


    @Override
    public void setAssociationValue( QualifiedName stateName, EntityReference newEntity )
    {
        RelationshipType association = association( stateName );
        Relationship rel = underlyingNode.getSingleRelationship( association, Direction.OUTGOING );
        if( rel != null )
        {
            Node otherNode = rel.getEndNode();
            if( otherNode.getProperty( ENTITY_ID ).equals( identity().identity() ) )

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    }
  }
  
  @Override
  protected Number getForeignKeyValue(EORelationship rel) {
    RelationshipType relType = Neo4JUtils.getRelationshipType(rel);
    Relationship r = getNode().getSingleRelationship(relType, Direction.OUTGOING);
    
    if (r == null) {
      return null;
    } else {

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    }
  }


  @Override
  protected void setForeignKeyValue(EORelationship rel, Number referencedId) {
    RelationshipType relType = Neo4JUtils.getRelationshipType(rel);
    Relationship r = getNode().getSingleRelationship(relType, Direction.OUTGOING);
    
    if (referencedId == null) {
      if (r != null) {
        r.delete();

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    // remove all relationships that this node owns (in relational database these would be simply foreign key values
    // therefore removing a row would remove it's owned foreign keys. We could simply traverse through all of its
    // surrounding outgoing relationships and delete them, but it would delete join entity relationships too.
    for (EORelationship rel : entity.relationships()) {
      if (! rel.isCompound() && ! rel.isToMany()) {
        RelationshipType relType = Neo4JUtils.getRelationshipType(rel);
        Relationship r = getNode().getSingleRelationship(relType, Direction.OUTGOING);
        
        if (r != null) {
          r.delete();
        }

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   * 
   * @param r
   * @return Neo4J relationship type
   */
  public static RelationshipType getRelationshipType(EORelationship r) {
    RelationshipType ret = resultsCache.get(r);
    
    if (ret == null) {
      EOEntity e = r.entity();
      String label = e.name() + ":" + r.name();

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  private static final org.apache.log4j.Logger log = org.apache.log4j.Logger.getLogger(NodesRelatedTo.class);


  final Cursor<Relationship> relationshipsIterator;
  
  public NodesRelatedTo(Results<Node> relatedTo, EORelationship rel) {
    final RelationshipType relationshipType = Neo4JUtils.getRelationshipType(rel);
    
    final Cursor<Node> nodeCursor = relatedTo;
    
    Cursor<Cursor<Relationship>> twoLevelIt = new Cursor<Cursor<Relationship>>() {
      public void remove() {

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    } else {


      // handle relationship
      final RelationshipInterface relationship = (RelationshipInterface) modificationEvent.getGraphObject();
      final RelationshipType relType = modificationEvent.getRelationshipType();


      // only interested in CONTAINS relationships
      if (!("CONTAINS".equals(relType.name()))) {
        return null;
      }


      if (modificationEvent.isDeleted()) { // && "CONTAINS".equals(relType.name())) {

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          logger.log(Level.INFO, "Creating relationship of type {0}", type);


          List<GenericNode> nodes        = createTestNodes(GenericNode.class, 2);
          final NodeInterface startNode  = nodes.get(0);
          final NodeInterface endNode    = nodes.get(1);
          final RelationshipType relType = RelType.IS_AT;
          NodeHasLocation rel       = app.create(startNode, endNode, NodeHasLocation.class);


          assertTrue(rel != null);
          assertTrue(rel.getType().equals(relType.name()));


        }
      }


      tx.success();

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  }


  @Override
  public String getType() {


    final RelationshipType relType = getRelType();
    if (relType != null) {
      return relType.name();
    }


    return null;
  }

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      })
    ;


    int numRels = relTypes.size();
    for(int i=0; i<numRels; i++) {
      RelationshipType relType = relTypes.get(i);
      Direction direction = directions.get(i);
      description = description.relationships(relType, direction);
    }


    return description;

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