/
MethodComparator.java
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/
MethodComparator.java
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/*
* Copyright 2021 Google LLC
*
* 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
*
* https://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.google.cloud.bigtable.misc_utilities;
import com.google.common.truth.Correspondence;
import java.lang.reflect.Method;
import java.util.Arrays;
/**
* A {@link Correspondence} to compare methods names, parameters and return types in different classes. An example
* usage is to make sure a child class is implementing all the methods in the non-abstract parent
* class.
*/
public class MethodComparator {
public static final Correspondence<Method, Method> METHOD_CORRESPONDENCE =
Correspondence.from(
MethodComparator::compareMethods, "compare method names, parameters and return types");
private static boolean compareMethods(Method actual, Method expected) {
if (!actual.getName().equals(expected.getName())
|| !Arrays.equals(actual.getParameterTypes(), expected.getParameterTypes())
|| actual.getModifiers() != expected.getModifiers()
|| !actual.getReturnType().equals(expected.getReturnType())) {
return false;
}
return true;
}
}