svn commit: r1617811 - /ofbiz/trunk/framework/base/src/org/ofbiz/base/concurrent/ConstantFuture.java

[doogie-3]

Author: doogie
Date: Wed Aug 13 19:38:18 2014
New Revision: 1617811

URL: http://svn.apache.org/r1617811
Log:
Add a simple Future implementation, that returns a constant,
non-changing value.

Added:
    ofbiz/trunk/framework/base/src/org/ofbiz/base/concurrent/ConstantFuture.java

Added: ofbiz/trunk/framework/base/src/org/ofbiz/base/concurrent/ConstantFuture.java
URL: http://svn.apache.org/viewvc/ofbiz/trunk/framework/base/src/org/ofbiz/base/concurrent/ConstantFuture.java?rev=1617811&view=auto
==============================================================================
--- ofbiz/trunk/framework/base/src/org/ofbiz/base/concurrent/ConstantFuture.java (added)
+++ ofbiz/trunk/framework/base/src/org/ofbiz/base/concurrent/ConstantFuture.java Wed Aug 13 19:38:18 2014
@@ -0,0 +1,51 @@
+/*******************************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.ofbiz.base.concurrent;
+
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+
+public class ConstantFuture<V> implements Future<V> {
+    private final V value;
+
+    public ConstantFuture(V value) {
+        this.value = value;
+    }
+
+    public boolean cancel(boolean mayInterruptIfRunning) {
+        return false;
+    }
+
+    public V get() {
+        return value;
+    }
+
+    public V get(long timeout, TimeUnit unit) {
+        return value;
+    }
+
+    public boolean isCancelled() {
+        return false;
+    }
+
+    public boolean isDone() {
+        return true;
+    }
+}