com.contrastsecurity.cassandra.migration.utils.ObjectUtils Maven / Gradle / Ivy

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/**
 * Copyright 2010-2015 Axel Fontaine
 * 
 * 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.contrastsecurity.cassandra.migration.utils;

/**
 * Collection of utility methods for dealing with objects.
 */
public class ObjectUtils {
    /**
     * Determine if the given objects are equal, returning {@code true}
     * if both are {@code null} or {@code false} if only one is
     * {@code null}.
     *
     * @param o1 first Object to compare
     * @param o2 second Object to compare
     * @return whether the given objects are equal
     */
    @SuppressWarnings("SimplifiableIfStatement")
    public static boolean nullSafeEquals(Object o1, Object o2) {
        if (o1 == o2) {
            return true;
        }
        if (o1 == null || o2 == null) {
            return false;
        }
        return o1.equals(o2);
    }
}