Adding JMCR-Stable version

[Benchmarks_CSolver.git] / JMCR-Stable / real-world application / derby-10.3.2.1 / java / engine / org / apache / derby / iapi / services / locks / ShExQual.java

diff --git a/JMCR-Stable/real-world application/derby-10.3.2.1/java/engine/org/apache/derby/iapi/services/locks/ShExQual.java b/JMCR-Stable/real-world application/derby-10.3.2.1/java/engine/org/apache/derby/iapi/services/locks/ShExQual.java
new file mode 100644 (file)
index 0000000..e9d8c9d
--- /dev/null
+++ b/JMCR-Stable/real-world application/derby-10.3.2.1/java/engine/org/apache/derby/iapi/services/locks/ShExQual.java
@@ -0,0 +1,61 @@
+/*\r
+\r
+   Derby - Class org.apache.derby.iapi.services.locks.ShExQual\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.iapi.services.locks;\r
+\r
+/**\r
+ * This class is intended to be used a the qualifier class for ShExLockable.\r
+ */\r
+public class ShExQual\r
+{\r
+       private int     lockState;\r
+\r
+       private ShExQual(int lockState)\r
+       {\r
+               this.lockState = lockState;\r
+       }\r
+\r
+       /*\r
+       ** These are intentionally package protected.  They are intended to\r
+       ** be used in this class and by ShExLockable, and by no one else.\r
+       */\r
+       public  static final int SHARED = 0;\r
+       public  static final int EXCLUSIVE = 1;\r
+\r
+       /* Shared Lock */\r
+       public static final ShExQual SH = new ShExQual(SHARED);\r
+\r
+       /* Exclusive Lock */\r
+       public static final ShExQual EX = new ShExQual(EXCLUSIVE);\r
+\r
+       public int getLockState()\r
+       {\r
+               return lockState;\r
+       }\r
+\r
+       public String toString()\r
+       {\r
+               if (lockState == SHARED)\r
+                       return "S";\r
+               else\r
+                       return "X";\r
+       }\r
+}\r