/******************************************************************************* | |
* Copyright (c) 1998, 2013 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 v1.0 and Eclipse Distribution License v. 1.0 | |
* which accompanies this distribution. | |
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html | |
* and the Eclipse Distribution License is available at | |
* http://www.eclipse.org/org/documents/edl-v10.php. | |
* | |
* Contributors: | |
* Oracle - initial API and implementation from Oracle TopLink | |
******************************************************************************/ | |
package org.eclipse.persistence.tools.schemaframework; | |
import java.io.*; | |
import org.eclipse.persistence.exceptions.*; | |
import org.eclipse.persistence.internal.sessions.AbstractSession; | |
/** | |
* <p> | |
* <b>Purpose</b>: Allow for creation of views. | |
* <p> | |
*/ | |
public class ViewDefinition extends DatabaseObjectDefinition { | |
protected String selectClause; | |
public ViewDefinition() { | |
super(); | |
this.selectClause = ""; | |
} | |
/** | |
* INTERNAL: | |
* Return the DDL to create the view. | |
*/ | |
public Writer buildCreationWriter(AbstractSession session, Writer writer) throws ValidationException { | |
try { | |
writer.write(session.getPlatform().getCreateViewString()); | |
writer.write(getFullName()); | |
writer.write(" AS ("); | |
writer.write(getSelectClause()); | |
writer.write(")"); | |
} catch (IOException ioException) { | |
throw ValidationException.fileError(ioException); | |
} | |
return writer; | |
} | |
/** | |
* INTERNAL: | |
* Return the DDL to drop the view. | |
*/ | |
public Writer buildDeletionWriter(AbstractSession session, Writer writer) throws ValidationException { | |
try { | |
writer.write("DROP VIEW " + getFullName()); | |
} catch (IOException ioException) { | |
throw ValidationException.fileError(ioException); | |
} | |
return writer; | |
} | |
/** | |
* The select clause is the select statement that is mapped into the view. | |
* This is database specific SQL code. | |
*/ | |
public String getSelectClause() { | |
return selectClause; | |
} | |
/** | |
* The select clause is the select statement that is mapped into the view. | |
* This is database specific SQL code. | |
*/ | |
public void setSelectClause(String selectClause) { | |
this.selectClause = selectClause; | |
} | |
} |