oracle.toplink.essentials.internal.indirection

Class WeavedObjectBasicIndirectionPolicy

java.lang.Object

oracle.toplink.essentials.internal.indirection.IndirectionPolicy

oracle.toplink.essentials.internal.indirection.BasicIndirectionPolicy

oracle.toplink.essentials.internal.indirection.WeavedObjectBasicIndirectionPolicy

All Implemented Interfaces:

Serializable, Cloneable

public class WeavedObjectBasicIndirectionPolicy
extends BasicIndirectionPolicy

INTERNAL: A WeavedObjectBasicIndirectionPolicy is used by OneToOne mappings that are LAZY through weaving and which use Property(method) access. It extends BasicIndirection by providing the capability of calling the set method that was initially mapped in addition to the set method for the weaved valueholder in order to coordinate the value of the underlying property with the value stored in the valueholder

Author:

Tom Ware

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected Method	setMethod
protected String	setMethodName

Fields inherited from class oracle.toplink.essentials.internal.indirection.IndirectionPolicy

mapping

Constructor Summary

Constructors

Constructor and Description
WeavedObjectBasicIndirectionPolicy(String setMethodName)

Method Summary

Modifier and Type	Method and Description
Object	getRealAttributeValueFromObject(Object object, Object attribute) INTERNAL: Return the "real" attribute value, as opposed to any wrapper.
protected Method	getSetMethod() This method will lazily initialize the set method Lazy initialization occurs to that we are not required to have a handle on the actual class that we are using until runtime.
void	setRealAttributeValueInObject(Object target, Object attributeValue) INTERNAL: Set the value of the appropriate attribute of target to attributeValue.
void	updateValueInObject(Object object, Object value, Object attributeValue) Coordinate the valueholder for this mapping with the underlying property by calling the initial setter method

Methods inherited from class oracle.toplink.essentials.internal.indirection.BasicIndirectionPolicy

backupCloneAttribute, cloneAttribute, extractPrimaryKeyForReferenceObject, extractReferenceRow, getOriginalIndirectionObject, iterateOnAttributeValue, nullValueFromRow, objectIsInstantiated, typeIsValid, validateAttributeOfInstantiatedObject, validateDeclaredAttributeType, validateGetMethodReturnType, validateSetMethodParameterType, valueFromQuery, valueFromRow

Methods inherited from class oracle.toplink.essentials.internal.indirection.IndirectionPolicy

buildCascadeQuery, clone, getCollectionMapping, getForeignReferenceMapping, getMapping, getOneToOneMapping, getValueFromProxy, initialize, setMapping, usesIndirection, usesTransparentIndirection, validateContainerPolicy, validateDeclaredAttributeTypeForCollection, validateGetMethodReturnTypeForCollection, validateSetMethodParameterTypeForCollection

Methods inherited from class java.lang.Object

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

Field Detail

setMethodName

protected String setMethodName

setMethod

protected Method setMethod

Constructor Detail

WeavedObjectBasicIndirectionPolicy

public WeavedObjectBasicIndirectionPolicy(String setMethodName)

Method Detail

getRealAttributeValueFromObject

public Object getRealAttributeValueFromObject(Object object,
                                              Object attribute)

INTERNAL: Return the "real" attribute value, as opposed to any wrapper. This will trigger the wrapper to instantiate the value. In a weaved policy, this will also call the initial setter method to coordinate the values of the valueholder with the underlying data

Overrides:

getRealAttributeValueFromObject in class BasicIndirectionPolicy

getSetMethod

protected Method getSetMethod()

This method will lazily initialize the set method Lazy initialization occurs to that we are not required to have a handle on the actual class that we are using until runtime. This helps to satisfy the weaving requirement that demands that we avoid loading domain classes into the main class loader until after weaving occurs.

Returns:

updateValueInObject

public void updateValueInObject(Object object,
                                Object value,
                                Object attributeValue)

Coordinate the valueholder for this mapping with the underlying property by calling the initial setter method

setRealAttributeValueInObject

public void setRealAttributeValueInObject(Object target,
                                          Object attributeValue)

INTERNAL: Set the value of the appropriate attribute of target to attributeValue. In this case, place the value inside the target's ValueHolder.

Overrides:

setRealAttributeValueInObject in class BasicIndirectionPolicy