org.neo4j.ogm.context

Class EntityMemo

java.lang.Object

org.neo4j.ogm.context.EntityMemo

public class EntityMemo
extends Object

Author:

Vince Bickers

Constructor Summary

Constructors

Constructor and Description
EntityMemo(MetaData meta)

Method Summary

Methods

Modifier and Type	Method and Description
void	clear()
void	remember(Long entityId, Object object, ClassInfo classInfo) constructs a 64-bit hash of this object's node properties and maps the object to that hash.
boolean	remembered(Long entityId, Object object, ClassInfo classInfo) determines whether the specified has already been memorised.

Methods inherited from class java.lang.Object

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

Constructor Detail

EntityMemo

public EntityMemo(MetaData meta)

Method Detail

remember

public void remember(Long entityId,
            Object object,
            ClassInfo classInfo)

constructs a 64-bit hash of this object's node properties and maps the object to that hash. The object must not be null

Parameters:

entityId - the id of the entity

object - the object whose persistable properties we want to hash

classInfo - metadata about the object

remembered

public boolean remembered(Long entityId,
                 Object object,
                 ClassInfo classInfo)

determines whether the specified has already been memorised. The object must not be null. An object is regarded as memorised if its hash value in the memo hash is identical to a recalculation of its hash value.

Parameters:

entityId - the id of the entity

object - the object whose persistable properties we want to check

classInfo - metadata about the object

Returns:

true if the object hasn't changed since it was remembered, false otherwise

clear

public void clear()