| /* |
| * 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 file |
| // 11/06/2009-2.0 Guy Pelletier |
| // - 286317: UniqueConstraint xml element is changing (plus couple other fixes, see bug) |
| // 03/24/2011-2.3 Guy Pelletier |
| // - 337323: Multi-tenant with shared schema support (part 1) |
| // 11/19/2012-2.5 Guy Pelletier |
| // - 389090: JPA 2.1 DDL Generation Support (foreign key metadata support) |
| package org.eclipse.persistence.internal.jpa.metadata.tables; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.persistence.internal.jpa.metadata.ORMetadata; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.MetadataAccessor; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAnnotation; |
| |
| /** |
| * INTERNAL: |
| * Object to hold onto a unique constraint metadata. |
| * |
| * 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. |
| * |
| */ |
| public class UniqueConstraintMetadata extends ORMetadata { |
| private String m_name; |
| private List<String> m_columnNames; |
| |
| /** |
| * INTERNAL: |
| * Used for XML loading. |
| */ |
| public UniqueConstraintMetadata() { |
| super("<unique-constraint>"); |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for annotation loading. |
| */ |
| public UniqueConstraintMetadata(MetadataAnnotation uniqueConstraint, MetadataAccessor accessor) { |
| super(uniqueConstraint, accessor); |
| |
| m_name = uniqueConstraint.getAttributeString("name"); |
| |
| m_columnNames = new ArrayList<String>(); |
| |
| for (Object columnName : uniqueConstraint.getAttributeArray("columnNames")) { |
| m_columnNames.add((String) columnName); |
| } |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| @Override |
| public boolean equals(Object objectToCompare) { |
| if (objectToCompare instanceof UniqueConstraintMetadata) { |
| UniqueConstraintMetadata uniqueConstraint = (UniqueConstraintMetadata) objectToCompare; |
| |
| if (! valuesMatch(m_name, uniqueConstraint.getName())) { |
| return false; |
| } |
| |
| return valuesMatch(m_columnNames, uniqueConstraint.getColumnNames()); |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = m_name != null ? m_name.hashCode() : 0; |
| result = 31 * result + (m_columnNames != null ? m_columnNames.hashCode() : 0); |
| return result; |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public List<String> getColumnNames() { |
| return m_columnNames; |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public String getName() { |
| return m_name; |
| } |
| |
| /** |
| * INTERNAL: |
| * Return true if a name has been specified for this unique constraint. |
| */ |
| public boolean hasName() { |
| return m_name != null && !m_name.equals(""); |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public void setColumnNames(List<String> columnNames) { |
| m_columnNames = columnNames; |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public void setName(String name) { |
| m_name = name; |
| } |
| } |
| |