X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.impl%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fimpl%2Fquery%2FCollectionUnaryQuery.java;fp=bundles%2Forg.simantics.db.impl%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fimpl%2Fquery%2FCollectionUnaryQuery.java;h=255054e12a90ec3600db6bf8e5190e13283600ff;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/CollectionUnaryQuery.java b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/CollectionUnaryQuery.java
new file mode 100644
index 000000000..255054e12
--- /dev/null
+++ b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/CollectionUnaryQuery.java
@@ -0,0 +1,37 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * 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:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.impl.query;
+
+
+
+
+abstract public class CollectionUnaryQuery<T> extends UnaryQuery<T> {
+    
+    public CollectionUnaryQuery(final int id) {
+        super(id);
+    }
+    
+    @Override
+    public void clearResult(QuerySupport support) {
+    	setResult(new IntArray());
+    }
+    
+    @Override
+    public void setReady() {
+    	super.setReady();
+    	IntArray v = (IntArray)getResult();
+    	int size = v.size();
+        if(size == 0) setResult(IntArray.EMPTY);
+        else v.trim();
+    }
+    
+}