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/*******************************************************************************
* Copyright (c) 2009 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.j2ee.internal.ui.preferences;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.wst.common.internal.emf.utilities.Assert;
public class JavaEEPreferencePageExtension {
public static final String ATT_ID = "id"; //$NON-NLS-1$
public static final String ATT_CLASS = "class"; //$NON-NLS-1$
public static final String JAVAEE_PAGE_EXTENSION = "javaeepageextender"; //$NON-NLS-1$
private String id = null;
private IConfigurationElement element;
private IJavaEEPreferencePageExtender instance;
private boolean errorCondition = false;
public JavaEEPreferencePageExtension(){
super();
}
private void init() {
id = element.getAttribute(ATT_ID);
}
/**
* @return Returns the id.
*/
public String getId() {
return id;
}
/**
* @param id
* The id to set.
*/
public void setId(String id) {
this.id = id;
}
public JavaEEPreferencePageExtension(IConfigurationElement element) {
Assert.isLegal(JAVAEE_PAGE_EXTENSION.equals(element.getName()), "Extensions must be of the type \"" + JAVAEE_PAGE_EXTENSION + "\"."); //$NON-NLS-1$ //$NON-NLS-2$
this.element = element;
init();
}
public IJavaEEPreferencePageExtender getInstance() {
try {
if (instance == null && !errorCondition)
instance = (IJavaEEPreferencePageExtender) element.createExecutableExtension("className"); //$NON-NLS-1$
} catch (Throwable e) {
errorCondition = true;
}
return instance;
}
}
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