/*
 * Copyright 2014-2015 MongoDB, Inc.
 *
 * Licensed 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.bson;

/**
 * The representation to use when converting a UUID to a BSON binary value.
 * This class is necessary because the different drivers used to have different
 * ways of encoding UUID, with the BSON subtype: \x03 UUID old.
 *
 * @since 3.0
 */
public enum UuidRepresentation {
    /**
     * The canonical representation of UUID
     *
     * BSON binary subtype 4
     */
    STANDARD,

    /**
     * The legacy representation of UUID used by the C# driver
     *
     * BSON binary subtype 3
     */
    C_SHARP_LEGACY,

    /**
     * The legacy representation of UUID used by the Java driver
     *
     * BSON binary subtype 3
     */
    JAVA_LEGACY,

    /**
     * The legacy representation of UUID used by the Python driver, which is the same
     * format as STANDARD, but has the UUID old BSON subtype (\x03)
     *
     * BSON binary subtype 3
     */
    PYTHON_LEGACY
}
