Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.common / src / org / simantics / db / common / request / BinaryRead.java

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/request/BinaryRead.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/BinaryRead.java
new file mode 100644 (file)
index 0000000..11d629a
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/BinaryRead.java
@@ -0,0 +1,65 @@
+/*******************************************************************************\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
+\r
+\r
+abstract public class BinaryRead<P1, P2, R> extends GenericReadBase<P1, R> {\r
+\r
+    final protected P1 parameter;\r
+    final protected P2 parameter2;\r
+    \r
+    private int hashCode;\r
+\r
+    @Override\r
+    public int hashCode() {\r
+       if(hashCode == 0) {\r
+               final int h1 = parameter != null ? parameter.hashCode() : 0;\r
+               final int h2 = parameter2 != null ? parameter2.hashCode() : 0;\r
+               hashCode = getClass().hashCode() + 31*(h1 + 31 * h2);\r
+       }\r
+       return 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
+        BinaryRead<?, ?, ?> r = (BinaryRead<?, ?, ?>) object;\r
+        \r
+        if(hashCode() != r.hashCode()) return false;\r
+        \r
+        if(parameter != null) {\r
+            if(!parameter.equals(r.parameter)) return false;\r
+        } else if(r.parameter != null) return false;\r
+        if(parameter2 != null) {\r
+            if(!parameter2.equals(r.parameter2)) return false;\r
+        } else if(r.parameter2 != null) return false;\r
+        return true;\r
+        \r
+    }\r
+\r
+    public BinaryRead(P1 parameter1, P2 parameter2) {\r
+        this.parameter = parameter1;\r
+        this.parameter2 = parameter2;\r
+    }\r
+\r
+    @Override\r
+    public String toString() {\r
+       return getClass().getSimpleName() + "$" + parameter + "$" + parameter2; \r
+    }\r
+    \r
+}\r