MethodKey.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.camel.guice.support.internal;

import java.lang.reflect.Method;
import java.util.Arrays;

/**
 * A key of methods comparing the method name and parameter types
 * 
 * @version
 */
public class MethodKey {
    private final String name;
    private final Class<?>[] parameterTypes;

    public MethodKey(String name, Class<?>[] parameterTypes) {
        this.name = name;
        this.parameterTypes = parameterTypes;
    }

    public MethodKey(Method method) {
        this(method.getName(), method.getParameterTypes());
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        MethodKey methodKey = (MethodKey) o;

        if (!name.equals(methodKey.name)) {
            return false;
        }
        if (!Arrays.equals(parameterTypes, methodKey.parameterTypes)) {
            return false;
        }

        return true;
    }

    @Override
    public int hashCode() {
        int result = name.hashCode();
        result = 31 * result + Arrays.hashCode(parameterTypes);
        return result;
    }
}