/*
* Copyright 2014-2016 the original author or authors.
*
* 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.springframework.data.rest.webmvc.json.patch;
import com.fasterxml.jackson.databind.JsonNode;
/**
* <p>
* A strategy interface for producing {@link Patch} instances from a patch document representation (such as JSON Patch)
* and rendering a Patch to a patch document representation. This decouples the {@link Patch} class from any specific
* patch format or library that holds the representation.
* </p>
* <p>
* For example, if the {@link Patch} is to be represented as JSON Patch, the representation type could be
* {@link JsonNode} or some other JSON library's type that holds a JSON document.
* </p>
*
* @author Craig Walls
* @author Oliver Gierke
* @param <T> A type holding a representation of the patch. For example, a JsonNode if working with JSON Patch.
*/
public interface PatchConverter<T> {
/**
* Convert a patch document representation to a {@link Patch}.
*
* @param patchRepresentation the representation of a patch.
* @return the {@link Patch} object that the document represents.
*/
Patch convert(T patchRepresentation);
/**
* Convert a {@link Patch} to a representation object.
*
* @param patch the {@link Patch} to convert.
* @return the patch representation object.
*/
T convert(Patch patch);
}