| /* |
| * Copyright (c) 1998, 2020 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: |
| // Oracle - initial API and implementation from Oracle TopLink |
| // 05/16/2008-1.0M8 Guy Pelletier |
| // - 218084: Implement metadata merging functionality between mapping files |
| // 08/27/2008-1.1 Guy Pelletier |
| // - 211329: Add sequencing on non-id attribute(s) support to the EclipseLink-ORM.XML Schema |
| // 04/24/2009-2.0 Guy Pelletier |
| // - 270011: JPA 2.0 MappedById support |
| // 06/02/2009-2.0 Guy Pelletier |
| // - 278768: JPA 2.0 Association Override Join Table |
| // 10/21/2009-2.0 Guy Pelletier |
| // - 290567: mappedbyid support incomplete |
| // 04/27/2010-2.1 Guy Pelletier |
| // - 309856: MappedSuperclasses from XML are not being initialized properly |
| // 08/04/2010-2.1.1 Guy Pelletier |
| // - 315782: JPA2 derived identity metadata processing validation doesn't account for autoboxing |
| // 03/24/2011-2.3 Guy Pelletier |
| // - 337323: Multi-tenant with shared schema support (part 1) |
| // 11/10/2011-2.4 Guy Pelletier |
| // - 357474: Address primaryKey option from tenant discriminator column |
| package org.eclipse.persistence.internal.jpa.metadata.accessors.mappings; |
| |
| import org.eclipse.persistence.exceptions.ValidationException; |
| |
| import org.eclipse.persistence.internal.jpa.metadata.MetadataDescriptor; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ClassAccessor; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAccessibleObject; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAnnotation; |
| |
| /** |
| * A relational accessor. A Basic annotation may or may not be present on the |
| * accessible object. |
| * |
| * Key notes: |
| * - any metadata mapped from XML to this class must be compared in the |
| * equals method. |
| * - any metadata mapped from XML to this class must be handled in the merge |
| * method. (merging is done at the accessor/mapping level) |
| * - any metadata mapped from XML to this class must be initialized in the |
| * initXMLObject method. |
| * - methods should be preserved in alphabetical order. |
| * |
| * @author Guy Pelletier |
| * @since TopLink EJB 3.0 Reference Implementation |
| */ |
| public class IdAccessor extends BasicAccessor { |
| /** |
| * INTERNAL: |
| */ |
| public IdAccessor() { |
| super("<id>"); |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| public IdAccessor(MetadataAnnotation id, MetadataAccessibleObject accessibleObject, ClassAccessor classAccessor) { |
| super(id, accessibleObject, classAccessor); |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| @Override |
| public boolean equals(Object objectToCompare) { |
| return super.equals(objectToCompare) && objectToCompare instanceof IdAccessor; |
| } |
| |
| @Override |
| public int hashCode() { |
| return super.hashCode(); |
| } |
| |
| /** |
| * INTERNAL: |
| * Marks this accessor as part of the Id |
| */ |
| @Override |
| public boolean isId(){ |
| return true; |
| } |
| |
| /** |
| * INTERNAL: |
| * Process an id accessor. |
| */ |
| @Override |
| public void process() { |
| // This will initialize the m_field variable. Accessible through getField(). |
| super.process(); |
| |
| String attributeName = getAttributeName(); |
| |
| for (MetadataDescriptor owningDescriptor : getOwningDescriptors()) { |
| if (owningDescriptor.hasEmbeddedId()) { |
| // We found both an Id and an EmbeddedId, throw an exception. |
| throw ValidationException.embeddedIdAndIdAnnotationFound(getJavaClass(), owningDescriptor.getEmbeddedIdAttributeName(), attributeName); |
| } |
| |
| // If this entity has a pk class, we need to validate our ids. |
| owningDescriptor.validatePKClassId(attributeName, getBoxedType(getReferenceClassName())); |
| |
| // Store the Id attribute name. Used with validation and OrderBy. |
| owningDescriptor.addIdAttributeName(attributeName); |
| |
| // Add the primary key field to the descriptor. |
| owningDescriptor.addPrimaryKeyField(getDatabaseField(), this); |
| } |
| |
| // Flag this id accessor as a JPA id mapping. |
| getMapping().setIsJPAId(); |
| } |
| } |