content: /*
   * 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.apache.asterix.transaction.management.service.transaction;
  
  /**
   * Represents a umbrella class containing constant that are used by transaction
   * sub-systems (Lock/Log)Manager.
   */
  public class TransactionManagementConstants {
  
      public static class LogManagerConstants {
          public static final int TERMINAL_LSN = -1;
      }
  
      public static class LockManagerConstants {
          public static class LockMode {
              public static final byte ANY = -1;
              public static final byte NL = 0;
              public static final byte IS = 1;
              public static final byte IX = 2;
              public static final byte S = 3;
              public static final byte X = 4;
  
              public static String toString(byte mode) {
                  switch (mode) {
                      case ANY:
                          return "ANY";
                      case NL:
                          return "NL";
                      case IS:
                          return "IS";
                      case IX:
                          return "IX";
                      case S:
                          return "S";
                      case X:
                          return "X";
                      default:
                          throw new IllegalArgumentException("no such lock mode");
                  }
              }
          }
      }
  }
  