Package org.eclipse.persistence.indirection

Examples of org.eclipse.persistence.indirection.ValueHolderInterface

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     * INTERNAL:
     * Return the original indirection object for a unit of work indirection object.
     */
    public Object getOriginalIndirectionObject(Object unitOfWorkIndirectionObject, AbstractSession session) {
        if (unitOfWorkIndirectionObject instanceof UnitOfWorkValueHolder) {
            ValueHolderInterface valueHolder = ((UnitOfWorkValueHolder)unitOfWorkIndirectionObject).getWrappedValueHolder();
            if ((valueHolder == null) && session.isRemoteUnitOfWork()) {
                RemoteSessionController controller = ((RemoteUnitOfWork)session).getParentSessionController();
                valueHolder = (ValueHolderInterface)controller.getRemoteValueHolders().get(((UnitOfWorkValueHolder)unitOfWorkIndirectionObject).getWrappedValueHolderRemoteID());
            }
            return valueHolder;
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        if ((referenceObject == null) || !Proxy.isProxyClass(referenceObject.getClass())) {
            return null;
        }

        ProxyIndirectionHandler handler = (ProxyIndirectionHandler)Proxy.getInvocationHandler(referenceObject);
        ValueHolderInterface valueHolder = handler.getValueHolder();

        if (valueHolder.isInstantiated()) {
            return null;
        } else {
            return ((DatabaseValueHolder)valueHolder).getRow();
        }
    }
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        if (!(attributeValue instanceof Proxy)) {
            boolean isExisting = !cloningSession.isUnitOfWork() || (((UnitOfWorkImpl)cloningSession).isObjectRegistered(clone) && (!((UnitOfWorkImpl)cloningSession).isOriginalNewObject(original)));
            return this.getMapping().buildCloneForPartObject(attributeValue, original, null, clone, cloningSession, isExisting);
        }

        ValueHolderInterface newValueHolder;
        ProxyIndirectionHandler handler = (ProxyIndirectionHandler)Proxy.getInvocationHandler(attributeValue);
        ValueHolderInterface oldValueHolder = handler.getValueHolder();
       
        if (!buildDirectlyFromRow && cloningSession.isUnitOfWork() && ((UnitOfWorkImpl)cloningSession).isOriginalNewObject(original)) {
            // CR#3156435 Throw a meaningful exception if a serialized/dead value holder is detected.
            // This can occur if an existing serialized object is attempt to be registered as new.
            if ((oldValueHolder instanceof DatabaseValueHolder)
                    && (! ((DatabaseValueHolder) oldValueHolder).isInstantiated())
                    && (((DatabaseValueHolder) oldValueHolder).getSession() == null)
                    && (! ((DatabaseValueHolder) oldValueHolder).isSerializedRemoteUnitOfWorkValueHolder())) {
                throw DescriptorException.attemptToRegisterDeadIndirection(original, getMapping());
            }
            newValueHolder = new ValueHolder();
            newValueHolder.setValue(this.getMapping().buildCloneForPartObject(oldValueHolder.getValue(), original, null, clone, cloningSession, false));
        } else {
          AbstractRecord row = null;
            if (oldValueHolder instanceof DatabaseValueHolder) {
                row = ((DatabaseValueHolder)oldValueHolder).getRow();
            }
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    public Object backupCloneAttribute(Object attributeValue, Object clone, Object backup, UnitOfWorkImpl unitOfWork) {
        if (!(attributeValue instanceof Proxy)) {
            return this.getMapping().buildBackupCloneForPartObject(attributeValue, clone, backup, unitOfWork);
        }
        ProxyIndirectionHandler handler = (ProxyIndirectionHandler)Proxy.getInvocationHandler(attributeValue);
        ValueHolderInterface unitOfWorkValueHolder = handler.getValueHolder();
        ValueHolderInterface backupValueHolder = null;
       
        if ((!(unitOfWorkValueHolder instanceof UnitOfWorkValueHolder)) || unitOfWorkValueHolder.isInstantiated()) {
            backupValueHolder = (ValueHolderInterface) super.backupCloneAttribute(unitOfWorkValueHolder, clone, backup, unitOfWork);
        } else {
            // CR#2852176 Use a BackupValueHolder to handle replacing of the original.
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     * Iterate over the specified attribute value.
     */
    public void iterateOnAttributeValue(DescriptorIterator iterator, Object attributeValue) {
        if (attributeValue instanceof Proxy) {
            ProxyIndirectionHandler handler = (ProxyIndirectionHandler)Proxy.getInvocationHandler(attributeValue);
            ValueHolderInterface valueHolder = handler.getValueHolder();

            iterator.iterateValueHolderForMapping(valueHolder, this.getMapping());
        } else {
            if (attributeValue != null) {
                this.getMapping().iterateOnRealAttributeValue(iterator, attributeValue);
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        return this.isChangeTracking;
    }

    public Object getAttributeValueFromObject(Object object) {
        if(isValueHolderProperty) {
            ValueHolderInterface vh = (ValueHolderInterface)ormAccessor.getAttributeValueFromObject(object);
            if(vh != null && !vh.isInstantiated()) {
                Object value = vh.getValue();
                oxmAccessor.setAttributeValueInObject(object, value);
                if(vh instanceof WeavedAttributeValueHolderInterface) {
                    ((WeavedAttributeValueHolderInterface)vh).setIsCoordinatedWithProperty(true);
                }
            }
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            if(listener != null) {
                listener.propertyChange(new PropertyChangeEvent(object, oxmAccessor.getAttributeName(), value, oldValue));
            }
        }
        if(isValueHolderProperty) {
            ValueHolderInterface vh = (ValueHolderInterface)ormAccessor.getAttributeValueFromObject(object);
            if(vh == null) {
                vh = new ValueHolder();
                ((ValueHolder)vh).setIsNewlyWeavedValueHolder(true);
            }
            vh.setValue(value);
            ormAccessor.setAttributeValueInObject(object, vh);
        }
        oxmAccessor.setAttributeValueInObject(object, value);
    }
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            propertiesMap.put(propertyName, wrapper);
        }
        Object oldValue = null;
        Object wrapperValue = wrapper.getValue();
        if (wrapperValue instanceof ValueHolderInterface) {
            ValueHolderInterface vh = (ValueHolderInterface)wrapperValue;
            if (vh.isInstantiated()) {
                oldValue = vh.getValue();
            }
            vh.setValue(value);
            wrapper.isSet(true);
        }
        else {
            oldValue = wrapperValue;
            wrapper.setValue(value);
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     * INTERNAL:
     * Return the value to be stored in the object's attribute.
     * This will be a proxy object.
     */
    public Object valueFromRow(Object object) {
        ValueHolderInterface valueHolder = new ValueHolder(object);

        return ProxyIndirectionHandler.newProxyInstance(object.getClass(), targetInterfaces, valueHolder);
    }
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                descriptor = (ClassDescriptor)descriptor.getInterfacePolicy().getChildDescriptors().firstElement();
            }
        } catch (Exception e) {
            return null;
        }
        ValueHolderInterface valueHolder = new QueryBasedValueHolder(query, row, session);

        return ProxyIndirectionHandler.newProxyInstance(descriptor.getJavaClass(), targetInterfaces, valueHolder);
    }
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Related Classes of org.eclipse.persistence.indirection.ValueHolderInterface

  • org.eclipse.persistence.internal.dynamic.DynamicEntityImpl
  • org.eclipse.persistence.internal.indirection.ProxyIndirectionPolicy
  • org.eclipse.persistence.internal.oxm.accessor.OrmAttributeAccessor
  • org.eclipse.persistence.internal.xr.XRDynamicEntity
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