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## org.neo4j.graphdb.index
Class UniqueFactory.UniqueRelationshipFactory

    java.lang.Object
      org.neo4j.graphdb.index.UniqueFactory<Relationship>
          org.neo4j.graphdb.index.UniqueFactory.UniqueRelationshipFactory

Enclosing class:
  UniqueFactory<T extends PropertyContainer>

    public abstract static class UniqueFactory.UniqueRelationshipFactory

extends UniqueFactory<Relationship>

Implementation of `UniqueFactory` for `Relationship`.

Author:
  Tobias Lindaaker

Nested Class Summary

Nested classes/interfaces inherited from class org.neo4j.graphdb.index.UniqueFactory
`UniqueFactory.UniqueNodeFactory, UniqueFactory.UniqueRelationshipFactory`

Constructor Summary
`UniqueFactory.UniqueRelationshipFactory(GraphDatabaseService graphdb, String index)` Create a new `UniqueFactory` for relationships.
`UniqueFactory.UniqueRelationshipFactory(Index<Relationship> index)` Create a new `UniqueFactory` for relationships.

Method Summary
`protected void` | `delete(Relationship relationship)` Default implementation of `UniqueFactory.delete(PropertyContainer)`.
`protected void` | `initialize(Relationship relationship, Map<String,Object> properties)` Default implementation of `UniqueFactory.initialize(PropertyContainer, Map)`, does nothing for `Relationships`.

Methods inherited from class org.neo4j.graphdb.index.UniqueFactory
`create, getOrCreate, graphDatabase, index`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### UniqueFactory.UniqueRelationshipFactory

    public UniqueFactory.UniqueRelationshipFactory(Index<Relationship> index)

  Create a new `UniqueFactory` for relationships.

  Parameters:
    `index` - the index to store entities uniquely in.

### UniqueFactory.UniqueRelationshipFactory

    public UniqueFactory.UniqueRelationshipFactory(GraphDatabaseService graphdb,
                                                   String index)

  Create a new `UniqueFactory` for relationships.

  Parameters:
    `graphdb` - the graph database to get the index from.
    `index` - the name of the index to store entities uniquely in.

Method Detail

### initialize

    protected void initialize(Relationship relationship,
                              Map<String,Object> properties)

  Default implementation of `UniqueFactory.initialize(PropertyContainer, Map)`, does nothing for `Relationships`. Override to perform some action with the guarantee that this method is only invoked for the transaction that succeeded in creating the `Relationship`.

  Specified by:
    `initialize` in class `UniqueFactory<Relationship>`
  Parameters:
    `relationship` - the created entity to initialize.
    `properties` - the properties that this entity was indexed uniquely with.
  See Also:
    `UniqueFactory.initialize(PropertyContainer, Map)`, `UniqueFactory.create(Map)`

### delete

    protected void delete(Relationship relationship)

  Default implementation of `UniqueFactory.delete(PropertyContainer)`. Invokes `Relationship.delete()`.

  Specified by:
    `delete` in class `UniqueFactory<Relationship>`
  Parameters:
    `relationship` - the entity that was created but was not added to the index.
  See Also:
    `UniqueFactory.delete(PropertyContainer)`

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