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[utils] / support / src / org / wamblee / concurrency / JvmLock.java

diff --git a/support/src/org/wamblee/concurrency/JvmLock.java b/support/src/org/wamblee/concurrency/JvmLock.java
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+/*
+ * Copyright 2005 the original author or authors.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */ 
+
+package org.wamblee.concurrency;
+
+import java.util.concurrent.locks.ReentrantLock;
+
+/**
+ * In memory JVM lock. 
+ */ 
+public class JvmLock implements Lock {
+    
+    /**
+     * Reentrant lock to use. 
+     */
+    private ReentrantLock _lock; 
+    
+    /**
+     * In-memory lock. 
+     */
+    public JvmLock() { 
+        _lock = new ReentrantLock(true);     
+    }
+
+    /* (non-Javadoc)
+     * @see org.wamblee.concurrency.Lock#acquire()
+     */
+    public void acquire() {
+        _lock.lock();
+    }
+    
+    /* (non-Javadoc)
+     * @see org.wamblee.concurrency.Lock#release()
+     */
+    public void release() {
+        _lock.unlock();       
+    }
+}