--- /dev/null
+/*
+ * 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.
+ *
+ * @author Erik Brakkee
+ */
+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();
+ }
+}