| /* |
| * 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: |
| // Oracle - initial API and implementation from Oracle TopLink |
| package org.eclipse.persistence.tools.schemaframework; |
| |
| import java.io.*; |
| import java.util.*; |
| import org.eclipse.persistence.exceptions.*; |
| import org.eclipse.persistence.internal.sessions.AbstractSession; |
| |
| /** |
| * <p> |
| * <b>Purpose</b>: Define a unique key constraint for a table. |
| */ |
| public class UniqueKeyConstraint implements Serializable { |
| protected String name; |
| protected Vector<String> sourceFields; // field names |
| |
| public UniqueKeyConstraint() { |
| this.name = ""; |
| this.sourceFields = new Vector<>(); |
| } |
| |
| public UniqueKeyConstraint(String name, String sourceField) { |
| this(); |
| this.name = name; |
| sourceFields.addElement(sourceField); |
| } |
| |
| public UniqueKeyConstraint(String name, String[] sourceFields) { |
| this(); |
| this.name = name; |
| for(String sourceField : sourceFields) { |
| this.sourceFields.addElement(sourceField); |
| } |
| } |
| |
| /** |
| * PUBLIC: |
| */ |
| public void addSourceField(String sourceField) { |
| getSourceFields().addElement(sourceField); |
| } |
| |
| /** |
| * INTERNAL: |
| * Append the database field definition string to the table creation statement. |
| */ |
| public void appendDBString(Writer writer, AbstractSession session) { |
| try { |
| writer.write("UNIQUE ("); |
| for (Enumeration<String> sourceEnum = getSourceFields().elements(); |
| sourceEnum.hasMoreElements();) { |
| writer.write(sourceEnum.nextElement()); |
| if (sourceEnum.hasMoreElements()) { |
| writer.write(", "); |
| } |
| } |
| writer.write(")"); |
| } catch (IOException ioException) { |
| throw ValidationException.fileError(ioException); |
| } |
| } |
| |
| /** |
| * PUBLIC: |
| */ |
| public String getName() { |
| return name; |
| } |
| |
| /** |
| * PUBLIC: |
| */ |
| public Vector<String> getSourceFields() { |
| return sourceFields; |
| } |
| |
| /** |
| * PUBLIC: |
| */ |
| public void setName(String name) { |
| this.name = name; |
| } |
| |
| /** |
| * PUBLIC: |
| */ |
| public void setSourceFields(Vector<String> sourceFields) { |
| this.sourceFields = sourceFields; |
| } |
| } |
| |