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[simantics/platform.git] / bundles / org.simantics.db.impl / src / org / simantics / db / impl / query / CollectionUnaryQuery.java
1 /*******************************************************************************\r
2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
3  * in Industry THTH ry.\r
4  * All rights reserved. This program and the accompanying materials\r
5  * are made available under the terms of the Eclipse Public License v1.0\r
6  * which accompanies this distribution, and is available at\r
7  * http://www.eclipse.org/legal/epl-v10.html\r
8  *\r
9  * Contributors:\r
10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
11  *******************************************************************************/\r
12 package org.simantics.db.impl.query;\r
13 \r
14 \r
15 \r
16 \r
17 abstract public class CollectionUnaryQuery<T> extends UnaryQuery<T> {\r
18     \r
19     public CollectionUnaryQuery(final int id) {\r
20         super(id);\r
21     }\r
22     \r
23     @Override\r
24     public void clearResult(QuerySupport support) {\r
25         setResult(new IntArray());\r
26     }\r
27     \r
28     @Override\r
29     public void setReady() {\r
30         super.setReady();\r
31         IntArray v = (IntArray)getResult();\r
32         int size = v.size();\r
33         if(size == 0) setResult(IntArray.EMPTY);\r
34         else v.trim();\r
35     }\r
36     \r
37 }\r