com.codereligion.diff.util.StubComparator.java Source code

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Here is the source code for com.codereligion.diff.util.StubComparator.java

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/**
 * Copyright 2013 www.codereligion.com
 *
 * 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 com.codereligion.diff.util;

import com.codereligion.diff.ObjectComparator;
import com.google.common.collect.Sets;
import java.util.Set;

/**
 * Compares every object, constantly returns 0 as difference.
 * 
 * @author Sebastian Grbler
 * @since 13.05.2013
 */
public class StubComparator implements ObjectComparator<Object> {

    private final Set<Class<?>> types;

    public StubComparator(final Class<?>... types) {
        this.types = Sets.newHashSet(types);
    }

    @Override
    public int compare(Object o1, Object o2) {
        return 0;
    }

    @Override
    public boolean compares(Object object) {

        for (final Class<?> type : types) {
            if (type.isInstance(object)) {
                return true;
            }
        }

        return false;
    }
}