--- /dev/null
+/*\r
+\r
+ Derby - Class org.apache.derby.impl.services.locks.ConcurrentPool\r
+\r
+ Licensed to the Apache Software Foundation (ASF) under one or more\r
+ contributor license agreements. See the NOTICE file distributed with\r
+ this work for additional information regarding copyright ownership.\r
+ The ASF licenses this file to you under the Apache License, Version 2.0\r
+ (the "License"); you may not use this file except in compliance with\r
+ the License. You may obtain a copy of the License at\r
+\r
+ http://www.apache.org/licenses/LICENSE-2.0\r
+\r
+ Unless required by applicable law or agreed to in writing, software\r
+ distributed under the License is distributed on an "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
+ See the License for the specific language governing permissions and\r
+ limitations under the License.\r
+\r
+ */\r
+\r
+package org.apache.derby.impl.services.locks;\r
+\r
+/**\r
+ * A <code>LockFactory</code> which allows multiple threads to enter without\r
+ * blocking each other out.\r
+ */\r
+public final class ConcurrentPool extends AbstractPool {\r
+ /**\r
+ * Create the <code>ConcurrentLockSet</code> object that keeps the locks.\r
+ *\r
+ * @return a <code>ConcurrentLockSet</code>\r
+ */\r
+ protected LockTable createLockTable() {\r
+ return new ConcurrentLockSet(this);\r
+ }\r
+}\r