/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.karaf.eik.workbench.ui.views.bundle;
import org.apache.karaf.eik.workbench.provider.BundleItem;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerSorter;
public abstract class BundlesViewerSorter extends ViewerSorter {
@Override
public int compare(Viewer viewer, Object e1, Object e2) {
if (e1 instanceof BundleItem == false || e2 instanceof BundleItem == false) {
return 0;
}
final BundleItem b1 = (BundleItem) e1;
final BundleItem b2 = (BundleItem) e2;
return compareBundles(b1, b2);
}
protected abstract int compareBundles(BundleItem b1, BundleItem b2);
}