--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.browsing.ui;\r
+\r
+import org.simantics.browsing.ui.NodeContext.QueryKey;\r
+\r
+public interface NodeQueryProcessor<T> {\r
+ /**\r
+ * @return the key that represents the query that this processor can respond\r
+ * to.\r
+ */\r
+ QueryKey<T> getIdentifier();\r
+\r
+ /**\r
+ * @param manager\r
+ * @param context\r
+ * @return the result of the query\r
+ */\r
+ T query(NodeQueryManager manager, NodeContext context);\r
+}\r