Package org.apache.ojb.broker.core.proxy

Examples of org.apache.ojb.broker.core.proxy.IndirectionHandler

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    best performance, thus create Identity object only if needed
    and do 'is new object' check only if needed.
    */
    private void initCld(final TransactionImpl tx)
    {
        final IndirectionHandler handler = ProxyHelper.getIndirectionHandler(obj);
        if(handler != null)
        {
            this.handler = handler;
            isNew = Boolean.FALSE;
            identity = handler.getIdentity();
            if(handler.alreadyMaterialized())
            {
                cld = tx.getBroker().getClassDescriptor(handler.getRealSubject().getClass());
            }
            else
            {
                cld = tx.getBroker().getClassDescriptor(identity.getObjectsRealClass());
            }
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                        {
                            item = colIterator.next();
                            RuntimeObject rt = new RuntimeObject(item, this);
                            if (rt.isProxy())
                            {
                                IndirectionHandler handler = ProxyHelper.getIndirectionHandler(item);
                                if (!handler.alreadyMaterialized())
                                {
                                    registerToIndirectionHandler(handler);
                                    continue;
                                }
                                else
                                {
                                    // @todo consider registering to hear when this is
                                    // derefernced instead of just loading here -bmc
                                    item = handler.getRealSubject();
                                }
                            }
                            if (!registrationList.contains(rt.getIdentity()))
                            {
                                lockAndRegister(rt, lockMode, registeredObjects);
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            */
            if(!rds.isSuperReferenceDescriptor())
            {
                Object referenceObject = rds.getPersistentField().get(myObj);

                IndirectionHandler handler = ProxyHelper.getIndirectionHandler(referenceObject);
                /*
                arminw:
                if object was serialized and anonymous FK are used in the main object, the FK
                values are null, we have to refresh (re-assign) these values before building field images.
                This will not touch the main object itself, because we only reassign anonymous FK fields.
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           at some later point in time it invokes callbacks on all it's listeners.
           Using this callback we can defer the registering until it's really needed.
        */
        if(rtObject.isProxy())
        {
            IndirectionHandler handler = rtObject.getHandler();
            if(handler == null)
            {
                throw new OJBRuntimeException("Unexpected error, expect an proxy object as indicated: " + rtObject);
            }
            if (handler.alreadyMaterialized())
            {
                objectToRegister = handler.getRealSubject();
            }
            else
            {
                registerToIndirectionHandler(handler);
                registerUnmaterializedLocks(rtObject.getObj());
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            if(depObj != null)
            {
                // in any case we have to link the source object when the object needs insert
                source.addLinkOneToOne(ord, false);

                IndirectionHandler handler = ProxyHelper.getIndirectionHandler(depObj);
                // if the object is not materialized, nothing has changed
                if(handler == null || handler.alreadyMaterialized())
                {
                    RuntimeObject rt;
                    // if materialized
                    if(handler != null)
                    {
                        rt = new RuntimeObject(handler.getRealSubject(), getTransaction(), false);
                    }
                    else
                    {
                        rt = new RuntimeObject(depObj, getTransaction());
                    }
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            throws LockingException
    {
        ContextEntry entry;
        LockManager lockManager;
        Swizzling swizzlingStrategy;
        IndirectionHandler handler = null;
        OTMKit kit = _tx.getKit();
        // Are we building object's relations for the userObject in the transaction?
        // Otherwise we just get data from the "userObject" and put it into
        // the previously loaded/created object in the transaction
        boolean buildingObject = false;
        boolean lazySwizzle = false;

        if (lock == LockType.NO_LOCK)
        {
            return null;
        }

        entry = (ContextEntry) _objects.get(oid);

        if (userObject == null)
        {
            // invalidating object...
            _original.remove(oid);
            _checkpointed.remove(oid);
            if (entry != null)
            {
                entry.userObject = null;
                entry.cacheObject = null;
            }
            return entry;
        }

        lockManager = LockManager.getInstance();
        swizzlingStrategy = kit.getSwizzlingStrategy();

        handler = ProxyHelper.getIndirectionHandler(userObject);
        if ((handler != null) && handler.alreadyMaterialized())
        {
            userObject = handler.getRealSubject();
            handler = null;
        }

        if ((entry == null) || (entry.userObject == null))
        {
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     * @return Object[]
     * @throws PersistenceBrokerException
     */
    public ValueContainer[] getKeyValues(ClassDescriptor cld, Object objectOrProxy, boolean convertToSql) throws PersistenceBrokerException
    {
        IndirectionHandler handler = ProxyHelper.getIndirectionHandler(objectOrProxy);

        if(handler != null)
        {
            return getKeyValues(cld, handler.getIdentity(), convertToSql);  //BRJ: convert Identity
        }
        else
        {
            ClassDescriptor realCld = getRealClassDescriptor(cld, objectOrProxy);
            return getValuesForObject(realCld.getPkFields(), objectOrProxy, convertToSql);
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    public boolean hasNullPKField(ClassDescriptor cld, Object obj)
    {
        FieldDescriptor[] fields = cld.getPkFields();
        boolean hasNull = false;
        // an unmaterialized proxy object can never have nullified PK's
        IndirectionHandler handler = ProxyHelper.getIndirectionHandler(obj);
        if(handler == null || handler.alreadyMaterialized())
        {
            if(handler != null) obj = handler.getRealSubject();
            FieldDescriptor fld;
            for(int i = 0; i < fields.length; i++)
            {
                fld = fields[i];
                hasNull = representsNull(fld, fld.getPersistentField().get(obj));
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    private void init(final Object objectToIdentify, final PersistenceBroker targetBroker, ClassDescriptor cld)
    {
        if(objectToIdentify == null) throw new OJBRuntimeException("Can't create Identity for 'null'-object");
        try
        {
            final IndirectionHandler handler = ProxyHelper.getIndirectionHandler(objectToIdentify);

            synchronized(objectToIdentify)
            {
                if (handler != null)
                {
                    final Identity sourceOID = handler.getIdentity();
                    m_objectsTopLevelClass = sourceOID.m_objectsTopLevelClass;
                    m_objectsRealClass = sourceOID.m_objectsRealClass;
                    m_pkValues = sourceOID.m_pkValues;
                }
                else
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    public Object createProxy(Class baseClassForProxy, Identity realSubjectsIdentity)
    {
        try
        {
            // the invocation handler manages all delegation stuff
            IndirectionHandler handler     = getProxyFactory().createIndirectionHandler(pbKey, realSubjectsIdentity);

            // the proxy simply provides the interface of the real subject
            if (VirtualProxy.class.isAssignableFrom(baseClassForProxy))
            {
                Constructor constructor = baseClassForProxy.getDeclaredConstructor(new Class[]{ IndirectionHandler.class });
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Related Classes of org.apache.ojb.broker.core.proxy.IndirectionHandler

  • org.apache.ojb.broker.accesslayer.PlainPrefetcher
  • org.apache.ojb.broker.core.IdentityFactoryImpl
  • org.apache.ojb.broker.core.PersistenceBrokerImpl
  • org.apache.ojb.broker.core.QueryReferenceBroker
  • org.apache.ojb.broker.core.QueryReferenceBroker$PBMaterializationListener
  • org.apache.ojb.broker.Identity
  • org.apache.ojb.broker.util.BrokerHelper
  • org.apache.ojb.odmg.ObjectEnvelope
  • org.apache.ojb.odmg.ObjectEnvelope$EqualsColHelper
  • org.apache.ojb.odmg.ObjectEnvelopeTable
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