+/*******************************************************************************\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.graph.impl;\r
+\r
+import java.util.Collection;\r
+\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
+import org.simantics.browsing.ui.Tester;\r
+import org.simantics.browsing.ui.BuiltinKeys.ViewpointContributionKey;\r
+import org.simantics.browsing.ui.content.Contributor;\r
+import org.simantics.browsing.ui.content.ViewpointContribution;\r
+import org.simantics.browsing.ui.content.ViewpointContributionFactory;\r
+import org.simantics.browsing.ui.graph.impl.contribution.ViewpointContributionImpl;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.utils.ReflectionUtils;\r
+\r
+abstract public class LazyViewpointContributionContributor<InputClass> implements Contributor<ViewpointContributionFactory> {\r
+\r
+ abstract public Collection<NodeContext> children(ReadGraph graph, NodeContext context, PrimitiveQueryUpdater updater, ViewpointContributionKey key, ViewpointContributionImpl contribution) throws DatabaseException;\r
+ abstract public String getViewpointId();\r
+ \r
+ final private Class<?> clazz;\r
+\r
+ public LazyViewpointContributionContributor() {\r
+ clazz = ReflectionUtils.getSingleParameterType(getClass());\r
+ }\r
+\r
+ @Override\r
+ public ViewpointContributionFactory getFactory() {\r
+\r
+ return new ViewpointContributionFactory() {\r
+ \r
+ @Override\r
+ public String getViewpointId() {\r
+ return LazyViewpointContributionContributor.this.getViewpointId();\r
+ }\r
+ \r
+ @Override\r
+ public ViewpointContribution create(final PrimitiveQueryUpdater updater, NodeContext context, final ViewpointContributionKey key) {\r
+ \r
+ return new ViewpointContributionImpl(updater, context, key) {\r
+\r
+ @Override\r
+ public Collection<NodeContext> children(ReadGraph graph, NodeContext context) throws DatabaseException {\r
+\r
+ return LazyViewpointContributionContributor.this.children(graph, context, updater, key, this);\r
+\r
+ }\r
+\r
+ @Override\r
+ public Tester getNodeContextTester() {\r
+ return LazyViewpointContributionContributor.this.getNodeContextTester();\r
+ }\r
+\r
+ @Override\r
+ public Class<?> getInputClass() {\r
+ return LazyViewpointContributionContributor.this.getInputClass();\r
+ }\r
+\r
+ };\r
+ \r
+ }\r
+ \r
+ };\r
+ \r
+ }\r
+ \r
+ @Override\r
+ public Class<?> getInputClass() {\r
+ return clazz;\r
+ }\r
+\r
+}\r