+/*******************************************************************************\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.db.common.request;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.exception.DatabaseException;\r
+\r
+abstract public class ResourceRead3<T> extends ResourceReadBase<T> {\r
+\r
+ final protected Resource resource;\r
+ final protected Resource resource2;\r
+ final protected Resource resource3;\r
+\r
+ @Override\r
+ public int hashCode() {\r
+ return resource.hashCode() + 51 * (resource2.hashCode() + 31 * resource3.hashCode());\r
+ }\r
+\r
+ @Override\r
+ public boolean equals(Object object) {\r
+ if (this == object)\r
+ return true;\r
+ else if (object == null)\r
+ return false;\r
+ else if (getClass() != object.getClass())\r
+ return false;\r
+ ResourceRead3<?> r = (ResourceRead3<?>) object;\r
+ return resource.equals(r.resource) && resource2.equals(r.resource2) && resource3.equals(r.resource3);\r
+ }\r
+\r
+ public ResourceRead3(Resource r1, Resource r2, Resource r3) {\r
+ if(r1 == null) throw new IllegalArgumentException("Null resource1.");\r
+ if(r2 == null) throw new IllegalArgumentException("Null resource2.");\r
+ if(r3 == null) throw new IllegalArgumentException("Null resource3.");\r
+ this.resource = r1;\r
+ this.resource2 = r2;\r
+ this.resource3 = r3;\r
+ }\r
+\r
+ @Override\r
+ public boolean isImmutable(ReadGraph graph) throws DatabaseException {\r
+ return graph.isImmutable(resource) && graph.isImmutable(resource2) && graph.isImmutable(resource3);\r
+ }\r
+ \r
+}\r