--- /dev/null
+/*\r
+\r
+ Derby - Class org.apache.derby.impl.services.locks.Constants\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
+*/\r
+\r
+public class Constants {\r
+\r
+ /**\r
+ Trace flag to display lock requests, grants and unlocks.\r
+ */\r
+ public static final String LOCK_TRACE = "LockTrace";\r
+\r
+ /**\r
+ Trace flag to display stack trace of lock calls.\r
+ */\r
+ public static final String LOCK_STACK_TRACE = "LockStackTrace";\r
+\r
+ /**\r
+ Trace flag to add thread information to trace info of LockTrace, \r
+ requires that LockTrace be set to true.\r
+ */\r
+ public static final String LOCK_TRACE_ADD_THREAD_INFO = "LockTraceAddThreadInfo";\r
+\r
+\r
+ static final byte WAITING_LOCK_IN_WAIT = 0;\r
+ static final byte WAITING_LOCK_GRANT = 1;\r
+ static final byte WAITING_LOCK_DEADLOCK = 2;\r
+}\r