Module org.eclipse.persistence.core

Package org.eclipse.persistence.internal.indirection

Class WeavedObjectBasicIndirectionPolicy

java.lang.Object

org.eclipse.persistence.internal.indirection.IndirectionPolicy

org.eclipse.persistence.internal.indirection.BasicIndirectionPolicy

org.eclipse.persistence.internal.indirection.WeavedObjectBasicIndirectionPolicy

All Implemented Interfaces:

Serializable, Cloneable

public class WeavedObjectBasicIndirectionPolicy
extends BasicIndirectionPolicy

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

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected String	actualTypeClassName	Stores the actual type of the mapping if different from the reference type.
protected String	getMethodName	Name of the initial get method.
protected boolean	hasUsedMethodAccess	indicates whether the mapping has originally used method access
protected Method	setMethod	Lazily initialized set method based on the set method name.
protected String	setMethodName	Name of the initial set method.

Fields inherited from class org.eclipse.persistence.internal.indirection.IndirectionPolicy

mapping

Constructor Summary

Constructors

Constructor	Description
WeavedObjectBasicIndirectionPolicy(String getMethodName, String setMethodName, String actualTypeClassName, boolean hasUsedMethodAccess)

Method Summary

Modifier and Type	Method	Description
String	getActualTypeClassName()
String	getGetMethodName()
Object	getRealAttributeValueFromObject(Object object, Object attribute)	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.
String	getSetMethodName()
boolean	hasUsedMethodAccess()
boolean	isWeavedObjectBasicIndirectionPolicy()	INTERNAL:
void	setRealAttributeValueInObject(Object target, Object attributeValue)	Set the value of the appropriate attribute of target to attributeValue.
void	setRealAttributeValueInObject(Object target, Object attributeValue, boolean trackChanges)	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 org.eclipse.persistence.internal.indirection.BasicIndirectionPolicy

backupCloneAttribute, buildIndirectObject, cloneAttribute, extractPrimaryKeyForReferenceObject, extractReferenceRow, fixObjectReferences, getOriginalIndirectionObject, getOriginalIndirectionObjectForMerge, getOriginalValueHolder, getValueFromRemoteValueHolder, isAttributeValueFullyBuilt, iterateOnAttributeValue, mergeRemoteValueHolder, nullValueFromRow, objectIsEasilyInstantiated, objectIsInstantiated, reset, setSourceObject, typeIsValid, validateAttributeOfInstantiatedObject, validateDeclaredAttributeType, validateGetMethodReturnType, validateSetMethodParameterType, valueFromBatchQuery, valueFromMethod, valueFromQuery, valueFromQuery, valueFromRow

Methods inherited from class org.eclipse.persistence.internal.indirection.IndirectionPolicy

buildCascadeQuery, clone, getCollectionMapping, getForeignReferenceMapping, getMapping, getOneToOneMapping, getTransformationMapping, initialize, instantiateObject, mergeClientIntoServerValueHolder, objectIsInstantiatedOrChanged, setMapping, setUseLazyInstantiation, shouldUseLazyInstantiation, usesIndirection, usesTransparentIndirection, validateContainerPolicy, validateDeclaredAttributeTypeForCollection, validateGetMethodReturnTypeForCollection, validateSetMethodParameterTypeForCollection

Methods inherited from class java.lang.Object

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

Field Details

setMethodName

protected String setMethodName

Name of the initial set method.

setMethod

protected transient Method setMethod

Lazily initialized set method based on the set method name.

getMethodName

protected String getMethodName

Name of the initial get method.

hasUsedMethodAccess

protected boolean hasUsedMethodAccess

indicates whether the mapping has originally used method access

actualTypeClassName

protected String actualTypeClassName

Stores the actual type of the mapping if different from the reference type. Used for set method invocation

Constructor Details

WeavedObjectBasicIndirectionPolicy

public WeavedObjectBasicIndirectionPolicy(String getMethodName,
 String setMethodName,
 String actualTypeClassName,
 boolean hasUsedMethodAccess)

Method Details

getActualTypeClassName

public String getActualTypeClassName()

getRealAttributeValueFromObject

public Object getRealAttributeValueFromObject(Object object,
 Object attribute)

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.

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)

Set the value of the appropriate attribute of target to attributeValue. In this case, place the value inside the target's ValueHolder. Change tracking will be turned off when this method is called

Overrides:

setRealAttributeValueInObject in class BasicIndirectionPolicy

setRealAttributeValueInObject

public void setRealAttributeValueInObject(Object target,
 Object attributeValue,
 boolean trackChanges)

Set the value of the appropriate attribute of target to attributeValue. In this case, place the value inside the target's ValueHolder. if trackChanges is true, set the value in the object as if the user was setting it. Allow change tracking to pick up the change.

Overrides:

setRealAttributeValueInObject in class IndirectionPolicy

getGetMethodName

public String getGetMethodName()

getSetMethodName

public String getSetMethodName()

hasUsedMethodAccess

public boolean hasUsedMethodAccess()

isWeavedObjectBasicIndirectionPolicy

public boolean isWeavedObjectBasicIndirectionPolicy()

Description copied from class: IndirectionPolicy

INTERNAL:

Overrides:

isWeavedObjectBasicIndirectionPolicy in class IndirectionPolicy