hazelcast-master/hazelcast/src/main/java/com/hazelcast/internal/util/comparators/ObjectValueComparator.java
/*
 * Copyright (c) 2008-2023, Hazelcast, Inc. All Rights Reserved.
 *
 * 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.hazelcast.internal.util.comparators;

import com.hazelcast.internal.serialization.Data;
import com.hazelcast.internal.serialization.SerializationService;

import java.util.Objects;

/**
 * Comparator for {@link com.hazelcast.config.InMemoryFormat#OBJECT}
 * backed data structures.
 */
final class ObjectValueComparator implements ValueComparator {

    public static final ValueComparator INSTANCE = new ObjectValueComparator();

    private ObjectValueComparator() {
    }

    @Override
    public boolean isEqual(Object value1, Object value2, SerializationService ss) {
        if (value1 == value2) {
            return true;
        }
        if (value1 == null || value2 == null) {
            return false;
        }
        Object v1 = value1 instanceof Data ? ss.toObject(value1) : value1;
        Object v2 = value2 instanceof Data ? ss.toObject(value2) : value2;
        return Objects.equals(v1, v2);
    }
}
