All Downloads are FREE. Search and download functionalities are using the official Maven repository.

oracle.toplink.essentials.internal.expressions.SQLUpdateStatement Maven / Gradle / Ivy

There is a newer version: 2.1-60f
Show newest version
/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * // Copyright (c) 1998, 2007, Oracle. All rights reserved.
 * 
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
 * [name of copyright owner]"
 * 
 * Contributor(s):
 * 
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */
package oracle.toplink.essentials.internal.expressions;

import java.io.*;
import java.util.*;
import oracle.toplink.essentials.exceptions.*;
import oracle.toplink.essentials.internal.helper.*;
import oracle.toplink.essentials.queryframework.*;
import oracle.toplink.essentials.internal.sessions.AbstractSession;

/**
 * 

Purpose: Print UPDATE statement. *

Responsibilities:

    *
  • Print UPDATE statement. *
* @author Dorin Sandu * @since TOPLink/Java 1.0 */ public class SQLUpdateStatement extends SQLModifyStatement { /** * Append the string containing the SQL insert string for the given table. */ protected SQLCall buildCallWithoutReturning(AbstractSession session) { SQLCall call = new SQLCall(); call.returnNothing(); Writer writer = new CharArrayWriter(100); try { writer.write("UPDATE "); writer.write(getTable().getQualifiedName()); writer.write(" SET "); Vector fieldsForTable = new Vector(); for (Enumeration fieldsEnum = getModifyRow().keys(); fieldsEnum.hasMoreElements();) { DatabaseField field = (DatabaseField)fieldsEnum.nextElement(); if (field.getTable().equals(getTable()) || (!field.hasTableName())) { fieldsForTable.addElement(field); } } if (fieldsForTable.isEmpty()) { return null; } for (int i = 0; i < fieldsForTable.size(); i++) { DatabaseField field = (DatabaseField)fieldsForTable.elementAt(i); writer.write(field.getName()); writer.write(" = "); call.appendModify(writer, field); if ((i + 1) < fieldsForTable.size()) { writer.write(", "); } } if (!(getWhereClause() == null)) { writer.write(" WHERE "); ExpressionSQLPrinter printer = new ExpressionSQLPrinter(session, getTranslationRow(), call, false); printer.setWriter(writer); printer.printExpression(getWhereClause()); } call.setSQLString(writer.toString()); return call; } catch (IOException exception) { throw ValidationException.fileError(exception); } } }




© 2015 - 2024 Weber Informatics LLC | Privacy Policy