org.spicefactory.pimento.type
Class AssociationType

java.lang.Object
  org.spicefactory.pimento.type.AbstractAssociationType
      org.spicefactory.pimento.type.AssociationType

All Implemented Interfaces:

PropertyType

public class AssociationType
extends AbstractAssociationType

Represents a ManyToOne or OneToOne association.

Author:

Jens Halm

Constructor Summary

AssociationType()

Method Summary

Object	getValueForSnapshot(Object entity, Property property, IoContext context, FetchMode fetchMode) Reads the specified property from the given entity and returns it in a form suitable for inclusion in an entity snapshot.
Object	prepareValueFromSnapshot(Object entity, Object value, Property property, IoContext context, boolean createChangeSet) Prepares the specified property value, performing all necessary conversions, but without actually applying it to the specified entity.

Methods inherited from class org.spicefactory.pimento.type.AbstractAssociationType

equals, getAssociationMetadata, getFetchPlan, getMetadataForEntity, getMetadataForSnapshot, setAssociationMetadata, setValue, useLazyMode

Methods inherited from class java.lang.Object

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

Constructor Detail

AssociationType

public AssociationType()

Method Detail

getValueForSnapshot

public Object getValueForSnapshot(Object entity,
                                  Property property,
                                  IoContext context,
                                  FetchMode fetchMode)

Description copied from interface: PropertyType

Reads the specified property from the given entity and returns it in a form suitable for inclusion in an entity snapshot. For associations this means that non-null values should be converted to snapshots themselves, using the provided IoContext instance. Simple values could be returned as-is in most cases.

Parameters:

entity - the entity to extract the property value from

property - the property to extract

context - the active IoContext

fetchMode - the fetchMode to use if the property type is an association

Returns:

the current value of the property as a simple value, an entity snapshot or an instance of PropertyState

prepareValueFromSnapshot

public Object prepareValueFromSnapshot(Object entity,
                                       Object value,
                                       Property property,
                                       IoContext context,
                                       boolean createChangeSet)

Description copied from interface: PropertyType

Prepares the specified property value, performing all necessary conversions, but without actually applying it to the specified entity. The prepared values will be collected in a EntityUpdate instance which gets passed to any configured interceptors before the property is applied with the setValue method of this class.

Parameters:

entity - the entity to prepare the property for

value - the new value for the property

property - the property to prepare

context - the active IoContext

createChangeSet - whether a change set is being created

Returns:

the (possibly converted) value of the property as it will later be applied to the entity.