Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.g2d / src / org / simantics / g2d / image / impl / AbstractProviderProxy.java

diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/image/impl/AbstractProviderProxy.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/image/impl/AbstractProviderProxy.java
new file mode 100644 (file)
index 0000000..1ee76af
--- /dev/null
+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/image/impl/AbstractProviderProxy.java
@@ -0,0 +1,33 @@
+/*******************************************************************************\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.g2d.image.impl;\r
+\r
+import org.simantics.g2d.image.Image;\r
+import org.simantics.utils.datastructures.cache.IProvider;\r
+\r
+public abstract class AbstractProviderProxy implements IProvider<Image> {\r
+    protected IProvider<Image> source;\r
+    AbstractProviderProxy(IProvider<Image> source) {\r
+        this.source = source;\r
+    }\r
+    @Override\r
+    public int hashCode() {\r
+        return source.hashCode() + getClass().hashCode();\r
+    }\r
+    @Override\r
+    public boolean equals(Object obj) {\r
+        if (obj == null) return false;\r
+        if (!obj.getClass().equals(getClass())) return false;\r
+        return ((AbstractProviderProxy)obj).source.equals(source);\r
+    }\r
+}\r
+\r