1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.browsing.ui.common.processors;
14 import java.util.Collection;
16 import org.simantics.browsing.ui.BuiltinKeys;
17 import org.simantics.browsing.ui.NodeContext;
18 import org.simantics.browsing.ui.NodeQueryManager;
19 import org.simantics.browsing.ui.NodeContext.QueryKey;
20 import org.simantics.browsing.ui.content.ComparableContext;
21 import org.simantics.browsing.ui.content.ComparableContextFactory;
22 import org.simantics.browsing.ui.content.PrunedChildrenResult;
24 public class DefaultComparableChildrenProcessor extends AbstractNodeQueryProcessor<ComparableContext[]> {
26 private ComparableContext[] build(NodeQueryManager manager, NodeContext context, ComparableContextFactory factory) {
27 PrunedChildrenResult pruned = manager.query(context, BuiltinKeys.PRUNED_CHILDREN);
28 NodeContext[] prunedChildren = pruned.getPrunedChildren();
29 return factory.create(manager, context, prunedChildren);
33 public ComparableContext[] query(NodeQueryManager manager, NodeContext context) {
34 Collection<ComparableContextFactory> factories = manager.query(context, BuiltinKeys.COMPARABLE_FACTORIES);
35 if(factories.isEmpty())
38 // TODO: use SelectedComparatorFactory query instead of this "educated guess"
39 ComparableContextFactory factory = factories.iterator().next();
41 return build(manager, context, factory);
45 public String toString() {
46 return "ComparableProcessor";
50 public QueryKey<ComparableContext[]> getIdentifier() {
51 return BuiltinKeys.COMPARABLE_CHILDREN;