org.springframework.data.neo4j.fieldaccess
Class AbstractNodeRelationshipFieldAccessor<STATE extends org.neo4j.graphdb.PropertyContainer,TSTATE extends org.neo4j.graphdb.PropertyContainer>

java.lang.Object
  org.springframework.data.neo4j.fieldaccess.AbstractNodeRelationshipFieldAccessor<STATE,TSTATE>

All Implemented Interfaces:

FieldAccessor

Direct Known Subclasses:

NodeToNodesRelationshipFieldAccessor, OneToNRelationshipEntityFieldAccessorFactory.OneToNRelationshipEntityFieldAccessor

public abstract class AbstractNodeRelationshipFieldAccessor<STATE extends org.neo4j.graphdb.PropertyContainer,TSTATE extends org.neo4j.graphdb.PropertyContainer>
extends Object
implements FieldAccessor

Since:

11.09.2010

Author:

Michael Hunger

Field Summary

protected org.neo4j.graphdb.Direction	direction
protected Neo4jPersistentProperty	property
protected Class<?>	relatedType
protected Neo4jTemplate	template
protected org.neo4j.graphdb.RelationshipType	type

Constructor Summary

AbstractNodeRelationshipFieldAccessor(Class<?> clazz, Neo4jTemplate template, org.neo4j.graphdb.Direction direction, org.neo4j.graphdb.RelationshipType type, Neo4jPersistentProperty property)

Method Summary

protected STATE	checkUnderlyingState(Object entity)
protected void	createAddedRelationships(org.neo4j.graphdb.Node node, Set<org.neo4j.graphdb.Node> targetNodes)
protected Set<Object>	createEntitySetFromRelationshipEndNodes(Object entity, MappingPolicy mappingPolicy)
protected <T> ManagedFieldAccessorSet<T>	createManagedSet(Object entity, Set<T> result, MappingPolicy mappingPolicy)
protected Set<org.neo4j.graphdb.Node>	createSetOfTargetNodes(Object newVal)
protected void	createSingleRelationship(org.neo4j.graphdb.Node start, org.neo4j.graphdb.Node end)
Object	getDefaultValue() Returns a default implementation for a field or null if none is provided.
protected STATE	getOrCreateState(Object value)
protected abstract STATE	getState(Object entity)
protected abstract Iterable<TSTATE>	getStatesFromEntity(Object entity)
boolean	isWriteable(Object entity)
protected abstract org.neo4j.graphdb.Relationship	obtainSingleRelationship(org.neo4j.graphdb.Node start, org.neo4j.graphdb.Node end)
protected void	removeMissingRelationships(org.neo4j.graphdb.Node node, Set<org.neo4j.graphdb.Node> targetNodes)
protected MappingPolicy	updateMappingPolicy(MappingPolicy mappingPolicy)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.data.neo4j.fieldaccess.FieldAccessor

getValue, setValue

Field Detail

type

protected final org.neo4j.graphdb.RelationshipType type

property

protected final Neo4jPersistentProperty property

direction

protected final org.neo4j.graphdb.Direction direction

relatedType

protected final Class<?> relatedType

template

protected final Neo4jTemplate template

Constructor Detail

AbstractNodeRelationshipFieldAccessor

public AbstractNodeRelationshipFieldAccessor(Class<?> clazz,
                                             Neo4jTemplate template,
                                             org.neo4j.graphdb.Direction direction,
                                             org.neo4j.graphdb.RelationshipType type,
                                             Neo4jPersistentProperty property)

Method Detail

updateMappingPolicy

protected MappingPolicy updateMappingPolicy(MappingPolicy mappingPolicy)

isWriteable

public boolean isWriteable(Object entity)

Specified by:

isWriteable in interface FieldAccessor

Returns:

false for read only or computed fields, true otherwise

checkUnderlyingState

protected STATE checkUnderlyingState(Object entity)

removeMissingRelationships

protected void removeMissingRelationships(org.neo4j.graphdb.Node node,
                                          Set<org.neo4j.graphdb.Node> targetNodes)

createAddedRelationships

protected void createAddedRelationships(org.neo4j.graphdb.Node node,
                                        Set<org.neo4j.graphdb.Node> targetNodes)

createSetOfTargetNodes

protected Set<org.neo4j.graphdb.Node> createSetOfTargetNodes(Object newVal)

getOrCreateState

protected STATE getOrCreateState(Object value)

createManagedSet

protected <T> ManagedFieldAccessorSet<T> createManagedSet(Object entity,
                                                          Set<T> result,
                                                          MappingPolicy mappingPolicy)

createEntitySetFromRelationshipEndNodes

protected Set<Object> createEntitySetFromRelationshipEndNodes(Object entity,
                                                              MappingPolicy mappingPolicy)

createSingleRelationship

protected void createSingleRelationship(org.neo4j.graphdb.Node start,
                                        org.neo4j.graphdb.Node end)

getDefaultValue

public Object getDefaultValue()

Description copied from interface: FieldAccessor

Returns a default implementation for a field or null if none is provided.

This default implementation is returned in detached mode by the DetachedEntityState when the value of the field is get.

Specified by:

getDefaultValue in interface FieldAccessor

Returns:

a default implementation for a field or null if none is provided.

obtainSingleRelationship

protected abstract org.neo4j.graphdb.Relationship obtainSingleRelationship(org.neo4j.graphdb.Node start,
                                                                           org.neo4j.graphdb.Node end)

getStatesFromEntity

protected abstract Iterable<TSTATE> getStatesFromEntity(Object entity)

getState

protected abstract STATE getState(Object entity)