Class NoIndirectionPolicy
- java.lang.Object
-
- org.eclipse.persistence.internal.indirection.IndirectionPolicy
-
- org.eclipse.persistence.internal.indirection.NoIndirectionPolicy
-
- All Implemented Interfaces:
Serializable
,Cloneable
public class NoIndirectionPolicy extends IndirectionPolicy
Purpose
: NoIndirectionPolicy implements the behavior necessary for a aorg.eclipse.persistence.mappings.ForeignReferenceMapping
(or TransformationMapping) to directly use domain objects, as opposed to ValueHolders.- Since:
- TOPLink/Java 2.5
- Author:
- Mike Norman
- See Also:
- Serialized Form
-
-
Field Summary
-
Fields inherited from class org.eclipse.persistence.internal.indirection.IndirectionPolicy
mapping
-
-
Constructor Summary
Constructors Constructor Description NoIndirectionPolicy()
INTERNAL: Construct a new indirection policy.
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Object
buildIndirectObject(ValueHolderInterface valueHolder)
INTERNAL: This method can be used when an Indirection Object is required to be built from a provided ValueHolderInterface object.Object
cloneAttribute(Object attributeValue, Object original, CacheKey cacheKey, Object clone, Integer refreshCascade, AbstractSession cloningSession, boolean buildDirectlyFromRow)
INTERNAL: Return a clone of the attribute.protected boolean
collectionTypeIsValid(Class collectionType)
INTERNAL: Return whether the collection type is appropriate for the indirection policy.AbstractRecord
extractReferenceRow(Object referenceObject)
INTERNAL: Return the reference row for the reference object.void
fixObjectReferences(Object object, Map objectDescriptors, Map processedObjects, ObjectLevelReadQuery query, DistributedSession session)
INTERNAL: An object has been serialized from the server to the client.Object
getOriginalIndirectionObject(Object unitOfWorkIndirectionObject, AbstractSession session)
INTERNAL: Return the original indirection object for a unit of work indirection object.Object
getOriginalValueHolder(Object unitOfWorkIndirectionObject, AbstractSession session)
INTERNAL: Return the original valueHolder object.Object
getRealAttributeValueFromObject(Object object, Object attribute)
INTERNAL: Return the "real" attribute value, as opposed to any wrapper.Object
getValueFromRemoteValueHolder(RemoteValueHolder remoteValueHolder)
INTERNAL: Extract and return the appropriate value from the specified remote value holder.void
mergeRemoteValueHolder(Object clientSideDomainObject, Object serverSideDomainObject, MergeManager mergeManager)
INTERNAL Replace the client value holder with the server value holder, after copying some of the settings from the client value holder.Object
nullValueFromRow()
INTERNAL: Return the null value of the appropriate attribute.boolean
objectIsEasilyInstantiated(Object object)
INTERNAL: Return whether the specified object can be instantiated without database access.boolean
objectIsInstantiated(Object object)
INTERNAL: Return whether the specified object is instantiated.void
setRealAttributeValueInObject(Object target, Object attributeValue, boolean trackChanges)
Set the value of the appropriate attribute of target to attributeValue.protected boolean
typeIsValid(Class attributeType)
INTERNAL: Return whether the type is appropriate for the indirection policy.boolean
usesIndirection()
INTERNAL: Return whether the indirection policy actually uses indirection.void
validateDeclaredAttributeType(Class attributeType, IntegrityChecker checker)
INTERNAL: Verify that attributeType is correct for the indirection policy.void
validateDeclaredAttributeTypeForCollection(Class attributeType, IntegrityChecker checker)
INTERNAL: Verify that attributeType is an appropriate collection type for the indirection policy.void
validateGetMethodReturnType(Class returnType, IntegrityChecker checker)
INTERNAL: Verify that getter returnType is correct for the indirection policy.void
validateGetMethodReturnTypeForCollection(Class returnType, IntegrityChecker checker)
INTERNAL: Verify that getter returnType is an appropriate collection type for the indirection policy.void
validateSetMethodParameterType(Class parameterType, IntegrityChecker checker)
INTERNAL: Verify that setter parameterType is correct for the indirection policy.void
validateSetMethodParameterTypeForCollection(Class parameterType, IntegrityChecker checker)
INTERNAL: Verify that setter parameterType is an appropriate collection type for the indirection policy.Object
valueFromBatchQuery(ReadQuery batchQuery, AbstractRecord row, ObjectLevelReadQuery originalQuery, CacheKey parentCacheKey)
INTERNAL: Return the value to be stored in the object's attribute.Object
valueFromMethod(Object object, AbstractRecord row, AbstractSession session)
INTERNAL: Return the value to be stored in the object's attribute.Object
valueFromQuery(ReadQuery query, AbstractRecord row, Object sourceObject, AbstractSession session)
INTERNAL: Return the value to be stored in the object's attribute.Object
valueFromQuery(ReadQuery query, AbstractRecord row, AbstractSession session)
INTERNAL: Return the value to be stored in the object's attribute.Object
valueFromRow(Object object)
INTERNAL: Return the value to be stored in the object's attribute.-
Methods inherited from class org.eclipse.persistence.internal.indirection.IndirectionPolicy
backupCloneAttribute, buildCascadeQuery, clone, extractPrimaryKeyForReferenceObject, getCollectionMapping, getForeignReferenceMapping, getMapping, getOneToOneMapping, getOriginalIndirectionObjectForMerge, getTransformationMapping, initialize, instantiateObject, isAttributeValueFullyBuilt, isWeavedObjectBasicIndirectionPolicy, iterateOnAttributeValue, mergeClientIntoServerValueHolder, objectIsInstantiatedOrChanged, reset, setMapping, setRealAttributeValueInObject, setSourceObject, setUseLazyInstantiation, shouldUseLazyInstantiation, usesTransparentIndirection, validateAttributeOfInstantiatedObject, validateContainerPolicy
-
-
-
-
Method Detail
-
buildIndirectObject
public Object buildIndirectObject(ValueHolderInterface valueHolder)
INTERNAL: This method can be used when an Indirection Object is required to be built from a provided ValueHolderInterface object. This may be used for custom value holder types. Certain policies like the TransparentIndirectionPolicy may wrap the valueholder in another object.- Specified by:
buildIndirectObject
in classIndirectionPolicy
-
cloneAttribute
public Object cloneAttribute(Object attributeValue, Object original, CacheKey cacheKey, Object clone, Integer refreshCascade, AbstractSession cloningSession, boolean buildDirectlyFromRow)
INTERNAL: Return a clone of the attribute.- Specified by:
cloneAttribute
in classIndirectionPolicy
- Parameters:
buildDirectlyFromRow
- indicates that we are building the clone directly from a row as opposed to building the original from the row, putting it in the shared cache, and then cloning the original.
-
collectionTypeIsValid
protected boolean collectionTypeIsValid(Class collectionType)
INTERNAL: Return whether the collection type is appropriate for the indirection policy. In this case, the type MUST be a Vector (or, in the case of jdk1.2, Collection or Map).
-
extractReferenceRow
public AbstractRecord extractReferenceRow(Object referenceObject)
INTERNAL: Return the reference row for the reference object. This allows the new row to be built without instantiating the reference object. Return null if the object has already been instantiated.- Specified by:
extractReferenceRow
in classIndirectionPolicy
-
fixObjectReferences
public void fixObjectReferences(Object object, Map objectDescriptors, Map processedObjects, ObjectLevelReadQuery query, DistributedSession session)
INTERNAL: An object has been serialized from the server to the client. Replace the transient attributes of the remote value holders with client-side objects.- Specified by:
fixObjectReferences
in classIndirectionPolicy
-
getOriginalIndirectionObject
public Object getOriginalIndirectionObject(Object unitOfWorkIndirectionObject, AbstractSession session)
INTERNAL: Return the original indirection object for a unit of work indirection object.- Specified by:
getOriginalIndirectionObject
in classIndirectionPolicy
-
getOriginalValueHolder
public Object getOriginalValueHolder(Object unitOfWorkIndirectionObject, AbstractSession session)
INTERNAL: Return the original valueHolder object. Access to the underlying valueholder may be required when serializing the valueholder or converting the valueHolder to another type.- Specified by:
getOriginalValueHolder
in classIndirectionPolicy
-
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.- Specified by:
getRealAttributeValueFromObject
in classIndirectionPolicy
-
getValueFromRemoteValueHolder
public Object getValueFromRemoteValueHolder(RemoteValueHolder remoteValueHolder)
INTERNAL: Extract and return the appropriate value from the specified remote value holder.- Specified by:
getValueFromRemoteValueHolder
in classIndirectionPolicy
-
mergeRemoteValueHolder
public void mergeRemoteValueHolder(Object clientSideDomainObject, Object serverSideDomainObject, MergeManager mergeManager)
INTERNAL Replace the client value holder with the server value holder, after copying some of the settings from the client value holder.- Specified by:
mergeRemoteValueHolder
in classIndirectionPolicy
-
nullValueFromRow
public Object nullValueFromRow()
INTERNAL: Return the null value of the appropriate attribute. That is, the field from the database is NULL, return what should be placed in the object's attribute as a result.- Specified by:
nullValueFromRow
in classIndirectionPolicy
-
objectIsInstantiated
public boolean objectIsInstantiated(Object object)
INTERNAL: Return whether the specified object is instantiated.- Specified by:
objectIsInstantiated
in classIndirectionPolicy
-
objectIsEasilyInstantiated
public boolean objectIsEasilyInstantiated(Object object)
INTERNAL: Return whether the specified object can be instantiated without database access.- Specified by:
objectIsEasilyInstantiated
in classIndirectionPolicy
-
typeIsValid
protected boolean typeIsValid(Class attributeType)
INTERNAL: Return whether the type is appropriate for the indirection policy. In this case, the attribute type CANNOT be ValueHolderInterface.
-
usesIndirection
public boolean usesIndirection()
INTERNAL: Return whether the indirection policy actually uses indirection. Here, we must reply false.- Overrides:
usesIndirection
in classIndirectionPolicy
-
validateDeclaredAttributeType
public void validateDeclaredAttributeType(Class attributeType, IntegrityChecker checker) throws DescriptorException
INTERNAL: Verify that attributeType is correct for the indirection policy. If it is incorrect, add an exception to the integrity checker. In this case, the attribute type CANNOT be ValueHolderInterface.- Overrides:
validateDeclaredAttributeType
in classIndirectionPolicy
- Throws:
DescriptorException
-
validateDeclaredAttributeTypeForCollection
public void validateDeclaredAttributeTypeForCollection(Class attributeType, IntegrityChecker checker) throws DescriptorException
INTERNAL: Verify that attributeType is an appropriate collection type for the indirection policy. If it is incorrect, add an exception to the integrity checker. In this case, the type MUST be a Vector (or, in the case of jdk1.2, Collection or Map).- Overrides:
validateDeclaredAttributeTypeForCollection
in classIndirectionPolicy
- Throws:
DescriptorException
-
validateGetMethodReturnType
public void validateGetMethodReturnType(Class returnType, IntegrityChecker checker) throws DescriptorException
INTERNAL: Verify that getter returnType is correct for the indirection policy. If it is incorrect, add an exception to the integrity checker. In this case, the return type CANNOT be ValueHolderInterface.- Overrides:
validateGetMethodReturnType
in classIndirectionPolicy
- Throws:
DescriptorException
-
validateGetMethodReturnTypeForCollection
public void validateGetMethodReturnTypeForCollection(Class returnType, IntegrityChecker checker) throws DescriptorException
INTERNAL: Verify that getter returnType is an appropriate collection type for the indirection policy. If it is incorrect, add an exception to the integrity checker. In this case, the type MUST be a Vector (or, in the case of jdk1.2, Collection or Map).- Overrides:
validateGetMethodReturnTypeForCollection
in classIndirectionPolicy
- Throws:
DescriptorException
-
validateSetMethodParameterType
public void validateSetMethodParameterType(Class parameterType, IntegrityChecker checker) throws DescriptorException
INTERNAL: Verify that setter parameterType is correct for the indirection policy. If it is incorrect, add an exception to the integrity checker. In this case, the parameter type CANNOT be ValueHolderInterface.- Overrides:
validateSetMethodParameterType
in classIndirectionPolicy
- Throws:
DescriptorException
-
validateSetMethodParameterTypeForCollection
public void validateSetMethodParameterTypeForCollection(Class parameterType, IntegrityChecker checker) throws DescriptorException
INTERNAL: Verify that setter parameterType is an appropriate collection type for the indirection policy. If it is incorrect, add an exception to the integrity checker. In this case, the type MUST be a Vector (or, in the case of jdk1.2, Collection or Map).- Overrides:
validateSetMethodParameterTypeForCollection
in classIndirectionPolicy
- Throws:
DescriptorException
-
valueFromBatchQuery
public Object valueFromBatchQuery(ReadQuery batchQuery, AbstractRecord row, ObjectLevelReadQuery originalQuery, CacheKey parentCacheKey)
INTERNAL: Return the value to be stored in the object's attribute. This value is determined by the batchQuery. In this case, extract the result from the query.- Specified by:
valueFromBatchQuery
in classIndirectionPolicy
-
valueFromMethod
public Object valueFromMethod(Object object, AbstractRecord row, AbstractSession session)
INTERNAL: Return the value to be stored in the object's attribute. This value is determined by invoking the mapping's AttributeTransformer- Specified by:
valueFromMethod
in classIndirectionPolicy
-
valueFromQuery
public Object valueFromQuery(ReadQuery query, AbstractRecord row, Object sourceObject, AbstractSession session)
INTERNAL: Return the value to be stored in the object's attribute. This value is determined by the query. In this case, wrap the query in a ValueHolder for later invocation.- Specified by:
valueFromQuery
in classIndirectionPolicy
-
valueFromQuery
public Object valueFromQuery(ReadQuery query, AbstractRecord row, AbstractSession session)
INTERNAL: Return the value to be stored in the object's attribute. This value is determined by the query. In this case, simply execute the query and return its results.- Specified by:
valueFromQuery
in classIndirectionPolicy
-
valueFromRow
public Object valueFromRow(Object object)
INTERNAL: Return the value to be stored in the object's attribute. This value is determined by the row. In this case, simply return the object.- Specified by:
valueFromRow
in classIndirectionPolicy
-
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 classIndirectionPolicy
-
-