| /* |
| * 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 |
| // 03/24/2011-2.3 Guy Pelletier |
| // - 337323: Multi-tenant with shared schema support (part 1) |
| package org.eclipse.persistence.internal.jpa.metadata.columns; |
| |
| import org.eclipse.persistence.internal.helper.DatabaseField; |
| import org.eclipse.persistence.internal.jpa.metadata.MetadataLogger; |
| |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.MetadataAccessor; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAccessibleObject; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAnnotation; |
| |
| import org.eclipse.persistence.internal.jpa.metadata.xml.XMLEntityMappings; |
| |
| /** |
| * INTERNAL: |
| * Object to hold onto an attribute override meta data. |
| * |
| * Key notes: |
| * - any metadata mapped from XML to this class must be compared in the |
| * equals method. |
| * - when loading from annotations, the constructor accepts the metadata |
| * accessor this metadata was loaded from. Used it to look up any |
| * 'companion' annotation needed for processing. |
| * - methods should be preserved in alphabetical order. |
| * |
| * @author Guy Pelletier |
| * @since EclipseLink 1.0 |
| */ |
| public class AttributeOverrideMetadata extends OverrideMetadata { |
| private ColumnMetadata m_column; |
| |
| /** |
| * INTERNAL: |
| * Used for XML loading. |
| */ |
| public AttributeOverrideMetadata() { |
| super("<attribute-override>"); |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for annotation loading. |
| */ |
| public AttributeOverrideMetadata(MetadataAnnotation attributeOverride, MetadataAccessor accessor) { |
| super(attributeOverride, accessor); |
| |
| m_column = new ColumnMetadata(attributeOverride.getAttributeAnnotation("column"), accessor); |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| @Override |
| public boolean equals(Object objectToCompare) { |
| if (super.equals(objectToCompare) && objectToCompare instanceof AttributeOverrideMetadata) { |
| return valuesMatch(m_column, ((AttributeOverrideMetadata) objectToCompare).getColumn()); |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| return m_column != null ? m_column.hashCode() : 0; |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public ColumnMetadata getColumn() { |
| return m_column; |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| @Override |
| public String getIgnoreMappedSuperclassContext() { |
| return MetadataLogger.IGNORE_MAPPED_SUPERCLASS_ATTRIBUTE_OVERRIDE; |
| } |
| |
| /** |
| * INTERNAL: |
| * Return the database field for this override. |
| */ |
| public DatabaseField getOverrideField() { |
| return m_column.getDatabaseField(); |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| @Override |
| public void initXMLObject(MetadataAccessibleObject accessibleObject, XMLEntityMappings entityMappings) { |
| super.initXMLObject(accessibleObject, entityMappings); |
| |
| // Initialize single objects. |
| initXMLObject(m_column, accessibleObject); |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public void setColumn(ColumnMetadata column) { |
| m_column = column; |
| } |
| } |