Examples of org.exolab.castor.persist.OID

org.exolab.castor.persist.OID
Object identifier. An object identifier is unique within a cache engine or other persistence mechanism and is used to locate object based on their identity as well as assure no duplicate identities. The object type and it's identity object define the OID's identity. In addition the OID is used to hold the object's stamp and db-lock access fields which are used to optimize dirty checking within a transaction. @author Assaf Arkin @version $Revision: 7932 $ $Date: 2006-04-22 11:05:30 -0600 (Sat, 22 Apr 2006) $

                            .getClass()));
        }


        ClassMolder molder = _tracker.getMolderForObject(object);
        LockEngine engine = molder.getLockEngine();
        OID oid = _tracker.getOIDForObject(object);


        if (_tracker.isDeleted(object)) {
            throw new ObjectDeletedException(Messages.format(
                    "persist.objectDeleted", object.getClass().getName(), oid
                            .getIdentity()));
        }


        // Release the lock, forget about the object in this transaction
        engine.releaseLock(this, oid);

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                    if ((!_tracker.isDeleted(object))
                            && (!_tracker.isCreating(object))) {
                        LockEngine engine =
                            _tracker.getMolderForObject(object).getLockEngine();
                        //_tracker.getMolderForObject(object);
                        OID oid = _tracker.getOIDForObject(object);


                        OID newoid = engine.preStore(this, oid, object, _lockTimeout);
                        if (newoid != null) {
                            _tracker.trackOIDChange(object, engine, oid, newoid);
                            _tracker.markUpdateCacheNeeded(object);
                        }
                    }

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            boolean needsPersist = _tracker.isUpdatePersistNeeded(toPrepare);
            boolean needsCache = _tracker.isUpdateCacheNeeded(toPrepare);


            ClassMolder molder = _tracker.getMolderForObject(toPrepare);
            LockEngine engine = molder.getLockEngine();
            OID oid = _tracker.getOIDForObject(toPrepare);


            if (!isDeleted && !isCreating) {
                if (needsPersist) {
                    engine.store(this, oid, toPrepare);
                }

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        Iterator it = objectsToDelete.iterator();


        while (it.hasNext()) {
            Object object = it.next();
            LockEngine engine = _tracker.getMolderForObject(object).getLockEngine();
            OID oid = _tracker.getOIDForObject(object);
            engine.delete(this, oid);
        }
    }

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        while (it.hasNext()) {
            Object toCommit = it.next();


            ClassMolder molder = _tracker.getMolderForObject(toCommit);
            LockEngine engine = molder.getLockEngine();
            OID oid = _tracker.getOIDForObject(toCommit);


            if (_tracker.isDeleted(toCommit)) {
                // Object has been deleted inside transaction,
                // engine must forget about it.
                engine.forgetObject(this, oid);

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        // un-delete object first
        _tracker.unmarkAllDeleted();


        // Clean the transaction locks with regards to the database engine.
        Collection readWriteObjects = _tracker.getReadWriteObjects();
        OID oid = null;
        try {
            Iterator it = readWriteObjects.iterator();
            // First revert all objects
            while (it.hasNext()) {
                Object object = it.next();

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     * {@inheritDoc}
     * @see org.castor.persist.TransactionContext#isDepended(
     *      org.exolab.castor.persist.OID, java.lang.Object)
     */
    public final boolean isDepended(final OID master, final Object dependent) {
        OID oid = _tracker.getOIDForObject(dependent);
        if (oid == null) {
            return false;
        }


        OID depends = oid.getDepends();


        if (depends == null) {
            return false;
        }
        return depends.equals(master);
    }

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     *      org.exolab.castor.persist.spi.Identity)
     */
    public final synchronized void expireCache(
            final ClassMolder molder, final Identity identity)
    throws PersistenceException {
        OID oid;
        
        LockEngine engine = molder.getLockEngine();


        if (identity == null) {
            throw new PersistenceException("Identities can't be null!");
        }


        oid = new OID(molder, identity);
        Object trackedObject = _tracker.getObjectForOID(engine, oid, false);
        if (trackedObject == null) {
            try {
                // the call to engine.expireCache may result in a
                // recursive call to this.expireCache, therefore,

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    throws PersistenceException {
        if (identity == null) {
            throw new PersistenceException("Identities can't be null!");
        }


        OID oid = new OID(molder, identity);
        return molder.getLockEngine().isCached(cls, oid);
    }

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     * @param lockEngine Current LcokEngine instance
     * @return True if the object in question is locked.
     */
    public final boolean isLocked(final Class cls, final Identity identity,
            final LockEngine lockEngine) {
        OID oid = new OID(lockEngine.getClassMolder(cls), identity);
        return lockEngine.isLocked(cls, oid);
    }

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org.castor.persist.AbstractTransactionContext

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org.castor.persist.ObjectTracker

org.castor.persist.proxy.RelationCollection$IteratorImp

org.castor.persist.resolver.ManyToManyRelationResolver

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