org.neo4j.ogm.mapper

Class EntityGraphMapper

java.lang.Object

org.neo4j.ogm.mapper.EntityGraphMapper

All Implemented Interfaces:

EntityToGraphMapper

public class EntityGraphMapper
extends Object
implements EntityToGraphMapper

Implementation of EntityToGraphMapper that is driven by an instance of MetaData.

Author:

Vince Bickers, Luanne Misquitta

Constructor Summary

Constructors

Constructor and Description
EntityGraphMapper(MetaData metaData, MappingContext mappingContext) Constructs a new EntityGraphMapper that uses the given MetaData.

Method Summary

Methods

Modifier and Type	Method and Description
CypherContext	map(Object entity) Processes the given object and any of its composite persistent objects and produces Cypher queries to persist their state in Neo4j.
CypherContext	map(Object entity, int horizon) Processes the given object and any of its composite persistent objects to the specified depth and produces Cypher queries to persist their state in Neo4j.

Methods inherited from class java.lang.Object

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

Constructor Detail

EntityGraphMapper

public EntityGraphMapper(MetaData metaData,
                 MappingContext mappingContext)

Constructs a new EntityGraphMapper that uses the given MetaData.

Parameters:

metaData - The MetaData containing the mapping information

mappingContext - The MappingContext for the current session

Method Detail

map

public CypherContext map(Object entity)

Description copied from interface: EntityToGraphMapper

Processes the given object and any of its composite persistent objects and produces Cypher queries to persist their state in Neo4j.

Specified by:

map in interface EntityToGraphMapper

Parameters:

entity - The "root" node of the object graph to persist

Returns:

A CypherContext object containing the statements required to persist the given object to Neo4j, along with a representation of the changes to be made by the Cypher statements never null

map

public CypherContext map(Object entity,
                int horizon)

Description copied from interface: EntityToGraphMapper

Processes the given object and any of its composite persistent objects to the specified depth and produces Cypher queries to persist their state in Neo4j.

Specified by:

map in interface EntityToGraphMapper

Parameters:

entity - The "root" node of the object graph to persist

horizon - The number of objects away from the "root" to traverse when looking for objects to map

Returns:

A CypherContext object containing the statements required to persist the given object to Neo4j, along with a representation of the changes to be made by the Cypher statements never null