Package org.castor.persist.resolver
Interface ResolverStrategy
- All Known Implementing Classes:
BaseRelationResolver
,ManyRelationResolver
,ManyToManyRelationResolver
,OneToManyRelationResolver
,PersistanceCapableRelationResolver
,PrimitiveResolver
,SerializableResolver
public interface ResolverStrategy
Strategy pattern to allow for common operations related to field resolution based upon
the type of the field.
- Since:
- 0.9.9
- Author:
- Werner Guttmann
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Method Summary
Modifier and TypeMethodDescriptioncreate
(TransactionContext tx, Object object) Create an object of the base class with specified identity into the persistence storage.void
expireCache
(TransactionContext tx, Object field) Inspect the fields stored in the object passed as an argument for contained objects.void
load
(TransactionContext tx, OID oid, ProposedEntity proposedObject, AccessMode suggestedAccessMode) Load an object with specified identity from the persistent storage.boolean
markCreate
(TransactionContext tx, OID oid, Object object) Walk the object model and mark object that should be created.void
markDelete
(TransactionContext tx, Object object, Object field) Prepare to delete an object with the specified identity.postCreate
(TransactionContext tx, OID oid, Object object, Object field, Identity createdId) Called after successful creation of an object of the base class.preStore
(TransactionContext tx, OID oid, Object object, int timeout, Object field) Check the object for modification.removeRelation
(TransactionContext tx, Object object, ClassMolder relatedMolder, Object relatedObject) Remove the reference of a related object from an object of the base class.void
revertObject
(TransactionContext tx, OID oid, Object object, Object field) Revert the object back to the state of begining of the transaction If the object is loaded, it will be revert as it was loaded.store
(TransactionContext tx, Object object, Object field) Store a data object into the persistent storage of the base class of this ClassMolder.void
update
(TransactionContext tx, OID oid, Object object, AccessMode suggestedAccessMode, Object field) Update the object which loaded or created in the other transaction to the persistent storage.updateCache
(TransactionContext tx, OID oid, Object object) Update the dirty checking cache.boolean
updateWhenNoTimestampSet
(TransactionContext tx, OID oid, Object object, AccessMode suggestedAccessMode) Update the object which loaded or created in the other transaction to the persistent storage.
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Method Details
-
create
Create an object of the base class with specified identity into the persistence storage.- Parameters:
tx
- transaction in actionobject
- the object to be created- Returns:
- the identity of the object
- Throws:
PersistenceException
-
postCreate
Object postCreate(TransactionContext tx, OID oid, Object object, Object field, Identity createdId) throws PersistenceException Called after successful creation of an object of the base class.- Parameters:
tx
- transaction in actionoid
- the object identity of the object to be created.object
- the object to be createdfield
- The field value as returned by the SQLEnginecreatedId
- ???- Returns:
- the identity of the object
- Throws:
PersistenceException
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markCreate
Walk the object model and mark object that should be created.- Parameters:
tx
- transaction in actionoid
- the object identity of the object to be created.object
- the object to be created- Returns:
- true if there's objects that should be created
- Throws:
PersistenceException
-
preStore
UpdateFlags preStore(TransactionContext tx, OID oid, Object object, int timeout, Object field) throws PersistenceException Check the object for modification. If dpendent object is dereferenced, it method will remove the object thru the transaction. If an related object is dereferenced, it method will make sure the formally object will be dereferenced from the other side as well. This method is called in prepare (for commit) state of the transaction. This method indicates if the object needed to be persist or cache should be update using TransactionContext.markDelete.- Parameters:
tx
- transaction in actionoid
- the object identity of the objectobject
- the data object to be checkedtimeout
- timeout of updating the lock if neededfield
- The field value as returned by the SQLEngine- Returns:
- true if the object is modified
- Throws:
PersistenceException
- If it is not possible to successfully complete this method.
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store
Store a data object into the persistent storage of the base class of this ClassMolder.- Parameters:
tx
- Transaction in actionobject
- the object to be storedfield
- The field value as returned by the SQLEngine- Throws:
PersistenceException
-
update
void update(TransactionContext tx, OID oid, Object object, AccessMode suggestedAccessMode, Object field) throws PersistenceException Update the object which loaded or created in the other transaction to the persistent storage.- Parameters:
tx
- Transaction in actionoid
- the object identity of the stored objectobject
- the object to be storedsuggestedAccessMode
- Suggested access modefield
- The field value as returned by the SQLEngine- Throws:
PersistenceException
- If it is not possible to successfully complete this method.
-
updateWhenNoTimestampSet
boolean updateWhenNoTimestampSet(TransactionContext tx, OID oid, Object object, AccessMode suggestedAccessMode) throws PersistenceException Update the object which loaded or created in the other transaction to the persistent storage.- Parameters:
tx
- Transaction in actionoid
- the object identity of the stored objectobject
- the object to be storedsuggestedAccessMode
- Suggested access mode- Returns:
- TODO
- Throws:
PersistenceException
- If it is not possible to successfully complete this method.
-
updateCache
Update the dirty checking cache. This method is called after a transaction completed successfully.- Parameters:
tx
- - transaction in actionoid
- - object's identity of the target objectobject
- - the target object- Returns:
- The object tha twas stored in the cache previously.
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markDelete
Prepare to delete an object with the specified identity. If any sub-object should be deleted along with the target object, it should be deleted by this method.- Parameters:
tx
- - transaction in actionobject
- - the target objectfield
- The field value as returned by the SQLEngine- Throws:
PersistenceException
- If it is not possible to successfully complete this method.
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revertObject
void revertObject(TransactionContext tx, OID oid, Object object, Object field) throws PersistenceException Revert the object back to the state of begining of the transaction If the object is loaded, it will be revert as it was loaded. If the object is created, it will be revert as it was just created.- Parameters:
tx
- - transaction in actionoid
- - the object identity of the target objectobject
- - the target objectfield
- The field value as returned by the SQLEngine- Throws:
PersistenceException
- If it is not possible to successfully complete this method.
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expireCache
Inspect the fields stored in the object passed as an argument for contained objects. Request an expireCache for each contained object.- Parameters:
tx
- TheTransactionContext
field
- The field value as returned by the SQLEngine- Throws:
PersistenceException
- If it is not possible to successfully complete this method.
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load
void load(TransactionContext tx, OID oid, ProposedEntity proposedObject, AccessMode suggestedAccessMode) throws PersistenceException Load an object with specified identity from the persistent storage.- Parameters:
tx
- the TransactionContext in actionoid
- the object identity of the desired objectproposedObject
- Object holder storing information about assumed and actual object instances.suggestedAccessMode
- the acessMode for the object- Throws:
PersistenceException
- If it is not possible to successfully complete this method.
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removeRelation
UpdateAndRemovedFlags removeRelation(TransactionContext tx, Object object, ClassMolder relatedMolder, Object relatedObject) Remove the reference of a related object from an object of the base class.If the related object is PersistanceCapable, the field will be set null. If the related object is a Collection, then the related object will be removed from the Collection.
If any changed occured, transactionContext.markModified will be called, to indicate the object is modified.
It method will iterate thur all of the object's field and try to remove all the occurrence.
- Parameters:
tx
- the TransactionContext of the transaction in actionobject
- the target object of the base type of this ClassMolderrelatedMolder
- the ClassMolder of the related object to be removed from the objectrelatedObject
- the object to be removed- Returns:
- Various flags related to updating/removing object instances.
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