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/*******************************************************************************
* Copyright (c) 2006, 2007 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.db.internal;
import org.eclipse.jpt.utility.internal.ClassTools;
/**
* NullConnection
*/
public final class NullConnection extends Connection {
private static NullConnection INSTANCE;
/**
* singleton support
*/
static synchronized Connection instance() {
if( INSTANCE == null) {
INSTANCE = new NullConnection();
}
return INSTANCE;
}
private NullConnection() {
super();
}
// ********** behavior **********
@Override
protected void dispose() {
// do nothing
}
@Override
public String getName() {
return ClassTools.shortClassNameForObject( this);
}
@Override
void databaseChanged( Database database, int eventType) {
// do nothing
}
@Override
void schemaChanged( Schema schema, Database database, int eventType) {
// do nothing
}
@Override
void tableChanged( Table table, Schema schema, Database database, int eventType) {
// do nothing
}
@Override
public boolean isConnected() {
return false;
}
@Override
public String getFactoryId() {
return "";
}
@Override
public void addConnectionListener( ConnectionListener listener) {
// do nothing
}
@Override
public void removeConnectionListener( ConnectionListener listener) {
// do nothing
}
}
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