1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.browsing.ui.common.viewpoints;
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14 import org.simantics.browsing.ui.NodeContext;
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15 import org.simantics.browsing.ui.PrimitiveQueryUpdater;
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16 import org.simantics.browsing.ui.content.Viewpoint;
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18 public class LazyContainerViewpoint implements Viewpoint {
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20 private NodeContext[] children = Viewpoint.PENDING_CHILDREN;
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21 private Boolean hasChildren = Viewpoint.PENDING_HAS_CHILDREN;
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23 public LazyContainerViewpoint() {
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26 public LazyContainerViewpoint(NodeContext[] children) {
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27 this.children = children;
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28 this.hasChildren = children.length > 0;
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31 public void setChildren(PrimitiveQueryUpdater updater, NodeContext[] children) {
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32 for(NodeContext c : children) updater.incRef(c);
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33 for(NodeContext c : this.children) updater.decRef(c);
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34 this.children = children;
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37 public void setHasChildren(Boolean hasChildren) {
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38 this.hasChildren = hasChildren;
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42 public NodeContext[] getChildren() {
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47 public Boolean getHasChildren() {
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