org.hibernate.ogm.datastore.neo4j.impl

Class Neo4jSequenceGenerator

java.lang.Object

org.hibernate.ogm.datastore.neo4j.impl.Neo4jSequenceGenerator

public class Neo4jSequenceGenerator
extends Object

Generates the next value in a sequence for a RowKey.

The next value in the sequence is saved in a node identified by the RowKey identifier.

Author:

Davide D'Alto

Constructor Summary

Constructors

Constructor and Description
Neo4jSequenceGenerator(org.neo4j.graphdb.GraphDatabaseService neo4jDb, String indexName)

Method Summary

Methods

Modifier and Type	Method and Description
int	nextValue(RowKey rowKey, int increment, int initialValue) Generate the next value in a sequence for a given RowKey.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Neo4jSequenceGenerator

public Neo4jSequenceGenerator(org.neo4j.graphdb.GraphDatabaseService neo4jDb,
                      String indexName)

Method Detail

nextValue

public int nextValue(RowKey rowKey,
            int increment,
            int initialValue)

Generate the next value in a sequence for a given RowKey.

Parameters:

rowKey - identifies the sequence

increment - the difference between to consecutive values in the sequence

initialValue - the first value returned when a new sequence is created

Returns:

the next value in a sequence