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Thymeleaf Layout Dialect rewritten in java.

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/*
 * Copyright 2015, Emanuel Rabina (http://www.ultraq.net.nz/)
 *
 * 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 nz.net.ultraq.thymeleaf.models;

import org.thymeleaf.model.IModel;

/**
 * Merges template models by applying the source model to the target model, with
 * the result being implementation-dependant.
 *
 * @author zhanhb
 * @author Emanuel Rabina
 */
public interface ModelMerger {

    /**
     * Merge the source model into the target model.
     *
     * @param targetModel
     * @param sourceModel
     * @return The result of the merge.
     */
    IModel merge(IModel targetModel, IModel sourceModel);

}