-/*******************************************************************************\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.utils.datastructures;\r
-\r
-import java.util.concurrent.ConcurrentHashMap;\r
-\r
-import org.simantics.utils.datastructures.disposable.AbstractDisposable;\r
-\r
-/**\r
- * This class provides context-local variables. There is a different value for \r
- * each context. This class handles disposing of all values if optional\r
- * disposer is provided. \r
- *\r
- * @param <T>\r
- */\r
-public class ContextLocal<T> extends AbstractDisposable {\r
- \r
- protected ConcurrentHashMap<Object, T> reg = new ConcurrentHashMap<Object, T>();\r
- \r
- public static interface Disposer<T> {\r
- public void dispose(T object);\r
- }\r
- \r
- Disposer<T> disposer;\r
- \r
- /**\r
- * Creates context-local variable container.\r
- */\r
- public ContextLocal() \r
- { \r
- }\r
- \r
- /**\r
- * Create context-local variable container.\r
- * Container created with this method takes ownership of its object.\r
- * \r
- * @param disposed\r
- */\r
- public ContextLocal(Disposer<T> disposer)\r
- {\r
- this.disposer = disposer;\r
- }\r
- \r
- /**\r
- * Gets the object associated in the specified context\r
- * \r
- * @param context\r
- * @return associated Object or <code>null</code> if not found\r
- */\r
- public T get(Object context) {\r
- return reg.get(context);\r
- }\r
-\r
- /**\r
- * Associates the specified Object with the specified context.\r
- * \r
- * @param context\r
- * @param monitor\r
- */\r
- public void replace(Object context, T value) {\r
- T old = value != null ? reg.put(context, value) : reg.remove(context);\r
- if (old!=null && disposer!=null)\r
- disposer.dispose(old);\r
- }\r
- \r
- public void remove(Object context) {\r
- replace(context, null);\r
- }\r
-\r
- @Override\r
- protected void doDispose() {\r
- if (disposer!=null)\r
- for (T lr : reg.values()) {\r
- disposer.dispose(lr);\r
- }\r
- reg.clear();\r
- }\r
-\r
-\r
-}\r
-\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.utils.datastructures;
+
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.simantics.utils.datastructures.disposable.AbstractDisposable;
+
+/**
+ * This class provides context-local variables. There is a different value for
+ * each context. This class handles disposing of all values if optional
+ * disposer is provided.
+ *
+ * @param <T>
+ */
+public class ContextLocal<T> extends AbstractDisposable {
+
+ protected ConcurrentHashMap<Object, T> reg = new ConcurrentHashMap<Object, T>();
+
+ public static interface Disposer<T> {
+ public void dispose(T object);
+ }
+
+ Disposer<T> disposer;
+
+ /**
+ * Creates context-local variable container.
+ */
+ public ContextLocal()
+ {
+ }
+
+ /**
+ * Create context-local variable container.
+ * Container created with this method takes ownership of its object.
+ *
+ * @param disposed
+ */
+ public ContextLocal(Disposer<T> disposer)
+ {
+ this.disposer = disposer;
+ }
+
+ /**
+ * Gets the object associated in the specified context
+ *
+ * @param context
+ * @return associated Object or <code>null</code> if not found
+ */
+ public T get(Object context) {
+ return reg.get(context);
+ }
+
+ /**
+ * Associates the specified Object with the specified context.
+ *
+ * @param context
+ * @param monitor
+ */
+ public void replace(Object context, T value) {
+ T old = value != null ? reg.put(context, value) : reg.remove(context);
+ if (old!=null && disposer!=null)
+ disposer.dispose(old);
+ }
+
+ public void remove(Object context) {
+ replace(context, null);
+ }
+
+ @Override
+ protected void doDispose() {
+ if (disposer!=null)
+ for (T lr : reg.values()) {
+ disposer.dispose(lr);
+ }
+ reg.clear();
+ }
+
+
+}
+
Code Review / simantics / platform.git / blobdiff