ceph/src/rocksdb/java/src/main/java/org/rocksdb/ComparatorType.java

   1 // Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
   2 //  This source code is licensed under both the GPLv2 (found in the
   3 //  COPYING file in the root directory) and Apache 2.0 License
   4 //  (found in the LICENSE.Apache file in the root directory).
   5
   6 package org.rocksdb;
   7
   8 enum ComparatorType {
   9   JAVA_COMPARATOR((byte)0x0),
  10   JAVA_NATIVE_COMPARATOR_WRAPPER((byte)0x1);
  11
  12   private final byte value;
  13
  14   ComparatorType(final byte value) {
  15     this.value = value;
  16   }
  17
  18   /**
  19    * <p>Returns the byte value of the enumerations value.</p>
  20    *
  21    * @return byte representation
  22    */
  23   byte getValue() {
  24     return value;
  25   }
  26
  27   /**
  28    * <p>Get the ComparatorType enumeration value by
  29    * passing the byte identifier to this method.</p>
  30    *
  31    * @param byteIdentifier of ComparatorType.
  32    *
  33    * @return ComparatorType instance.
  34    *
  35    * @throws IllegalArgumentException if the comparator type for the byteIdentifier
  36    *     cannot be found
  37    */
  38   static ComparatorType getComparatorType(final byte byteIdentifier) {
  39     for (final ComparatorType comparatorType : ComparatorType.values()) {
  40       if (comparatorType.getValue() == byteIdentifier) {
  41         return comparatorType;
  42       }
  43     }
  44
  45     throw new IllegalArgumentException(
  46         "Illegal value provided for ComparatorType.");
  47   }
  48 }