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/*******************************************************************************
* Copyright (c) 2006, 2010 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;
import org.eclipse.core.runtime.Plugin;
import org.eclipse.datatools.enablement.jdt.classpath.DriverClasspathContainer;
import org.eclipse.jdt.core.IClasspathContainer;
import org.eclipse.jpt.db.internal.DTPConnectionProfileFactory;
import org.osgi.framework.BundleContext;
/**
* The JPT DB plug-in lifecycle implementation.
* Globally available connection profile factory.
* <p>
* Provisional API: This class is part of an interim API that is still
* under development and expected to change significantly before reaching
* stability. It is available at this early stage to solicit feedback from
* pioneering adopters on the understanding that any code that uses this API
* will almost certainly be broken (repeatedly) as the API evolves.
*/
public class JptDbPlugin extends Plugin {
private DTPConnectionProfileFactory connectionProfileFactory;
private static JptDbPlugin INSTANCE; // sorta-final
/**
* Return the singleton JPT DB plug-in.
*/
public static JptDbPlugin instance() {
return INSTANCE;
}
// ********** public static methods **********
public static ConnectionProfileFactory getConnectionProfileFactory() {
return INSTANCE.getConnectionProfileFactory_();
}
// ********** plug-in implementation **********
/**
* The constructor
*/
public JptDbPlugin() {
super();
if (INSTANCE != null) {
throw new IllegalStateException();
}
// this convention is *wack*... ~bjv
INSTANCE = this;
}
/**
* This method is called upon plug-in activation
*/
@Override
public void start(BundleContext context) throws Exception {
super.start(context);
}
/**
* This method is called when the plug-in is stopped
*/
@Override
public void stop(BundleContext context) throws Exception {
if (this.connectionProfileFactory != null) {
this.connectionProfileFactory.stop();
this.connectionProfileFactory = null;
}
INSTANCE = null;
super.stop(context);
}
private synchronized ConnectionProfileFactory getConnectionProfileFactory_() {
if (this.connectionProfileFactory == null) {
this.connectionProfileFactory = buildConnectionProfileFactory();
this.connectionProfileFactory.start();
}
return this.connectionProfileFactory;
}
private DTPConnectionProfileFactory buildConnectionProfileFactory() {
return DTPConnectionProfileFactory.instance();
}
/**
* Creates a jar list container for the given DTP driver.
*/
public IClasspathContainer buildDriverClasspathContainerFor(String driverName) {
return new DriverClasspathContainer(driverName);
}
}
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