| /* |
| * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // mmacivor - Feb 06/2009 - Initial implementation |
| package org.eclipse.persistence.internal.oxm.accessor; |
| |
| import java.beans.PropertyChangeEvent; |
| import java.beans.PropertyChangeListener; |
| |
| import org.eclipse.persistence.core.mappings.CoreAttributeAccessor; |
| import org.eclipse.persistence.descriptors.changetracking.ChangeTracker; |
| import org.eclipse.persistence.indirection.ValueHolder; |
| import org.eclipse.persistence.indirection.ValueHolderInterface; |
| import org.eclipse.persistence.indirection.WeavedAttributeValueHolderInterface; |
| import org.eclipse.persistence.mappings.AttributeAccessor; |
| /** |
| * INTERNAL: |
| * A custom AttriuteAccessor to be used when the same object is mapped in both |
| * OXM and ORM. This will bridge the gap between the two for attributes that use |
| * ValueHolders. Specifically for JPA weaving. |
| * @author matt.macivor |
| * |
| */ |
| public class OrmAttributeAccessor extends AttributeAccessor { |
| private AttributeAccessor ormAccessor; |
| private CoreAttributeAccessor oxmAccessor; |
| private boolean isValueHolderProperty; |
| private boolean isChangeTracking; |
| |
| public OrmAttributeAccessor(AttributeAccessor ormAccessor, CoreAttributeAccessor oxmAccessor) { |
| this.ormAccessor = ormAccessor; |
| this.oxmAccessor = oxmAccessor; |
| } |
| |
| public void setValueHolderProperty(boolean isValueHolder) { |
| isValueHolderProperty = isValueHolder; |
| } |
| |
| public void setChangeTracking(boolean changeTracking) { |
| this.isChangeTracking = changeTracking; |
| } |
| |
| public boolean isValueHolderProperty() { |
| return this.isValueHolderProperty; |
| } |
| |
| public boolean isChangeTracking() { |
| return this.isChangeTracking; |
| } |
| |
| @Override |
| 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); |
| } |
| } |
| } |
| return oxmAccessor.getAttributeValueFromObject(object); |
| } |
| |
| @Override |
| public void setAttributeValueInObject(Object object, Object value) { |
| if(isChangeTracking) { |
| Object oldValue = getAttributeValueFromObject(object); |
| PropertyChangeListener listener = ((ChangeTracker)object)._persistence_getPropertyChangeListener(); |
| if(listener != null) { |
| listener.propertyChange(new PropertyChangeEvent(object, oxmAccessor.getAttributeName(), value, oldValue)); |
| } |
| } |
| if(isValueHolderProperty) { |
| @SuppressWarnings({"unchecked"}) |
| ValueHolderInterface<Object> vh = (ValueHolderInterface<Object>)ormAccessor.getAttributeValueFromObject(object); |
| if(vh == null) { |
| vh = new ValueHolder<>(); |
| ((ValueHolder<?>)vh).setIsNewlyWeavedValueHolder(true); |
| } |
| vh.setValue(value); |
| ormAccessor.setAttributeValueInObject(object, vh); |
| } |
| oxmAccessor.setAttributeValueInObject(object, value); |
| } |
| |
| public AttributeAccessor getOrmAccessor() { |
| return this.ormAccessor; |
| } |
| |
| public CoreAttributeAccessor getOxmAccessor() { |
| return this.oxmAccessor; |
| } |
| |
| public void setOrmAccessor(AttributeAccessor accessor) { |
| this.ormAccessor = accessor; |
| } |
| |
| public void setOxmAccessor(AttributeAccessor accessor) { |
| this.oxmAccessor = accessor; |
| } |
| |
| @Override |
| public Class<?> getAttributeClass() { |
| return oxmAccessor.getAttributeClass(); |
| } |
| |
| @Override |
| public boolean isMethodAttributeAccessor() { |
| return oxmAccessor.isMethodAttributeAccessor(); |
| } |
| |
| @Override |
| public String getAttributeName() { |
| return oxmAccessor.getAttributeName(); |
| } |
| } |