com.getperka.flatpack.ext.Acceptor Maven / Gradle / Ivy
package com.getperka.flatpack.ext;
/*
* #%L
* FlatPack serialization code
* %%
* Copyright (C) 2012 - 2013 Perka 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.
* #L%
*/
import com.getperka.flatpack.FlatPackVisitor;
/**
* Acceptors encapsulate a {@link Walker} that is ready to receive an object to traverse.
*
* @param the type of data to traverse, typically an aggregate of some sort
*/
public interface Acceptor {
/**
* Visit a value with a {@link FlatPackVisitor}.
*
* @param visitor the visitor to apply the value to
* @param value the value, which may be {@code null}
* @return {@code value} or its replacement, which may be {@code null}
*/
T accept(FlatPackVisitor visitor, T value);
}