001/*
002 * Configurate
003 * Copyright (C) zml and Configurate contributors
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *    http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.spongepowered.configurate.transformation;
018
019import org.spongepowered.configurate.ConfigurationNode;
020
021/**
022 * Strategy to use when moving a node from one path to another.
023 *
024 * @since 4.0.0
025 */
026public enum MoveStrategy {
027
028    /**
029     * Moves nodes using {@link ConfigurationNode#mergeFrom(ConfigurationNode)}.
030     *
031     * @since 4.0.0
032     */
033    MERGE {
034        @Override
035        public <T extends ConfigurationNode> void move(final T source, final T target) {
036            target.mergeFrom(source);
037        }
038    },
039
040    /**
041     * Moves nodes using {@link ConfigurationNode#set(Object)}.
042     *
043     * @since 4.0.0
044     */
045    OVERWRITE {
046        @Override
047        public <T extends ConfigurationNode> void move(final T source, final T target) {
048            target.from(source);
049        }
050    };
051
052    /**
053     * Moves <code>source</code> to <code>target</code>.
054     *
055     * @param <T> the type of node being processed
056     * @param source the source node
057     * @param target the target node
058     * @since 4.0.0
059     */
060    public abstract <T extends ConfigurationNode> void move(T source, T target);
061
062}