com.mauersu.util.redis.DefaultTypedTuple.java Source code

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Here is the source code for com.mauersu.util.redis.DefaultTypedTuple.java

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/*
 * Copyright 2011-2014 the original author or authors.
 * 
 * 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.mauersu.util.redis;

import java.util.Arrays;

import org.springframework.data.redis.core.ZSetOperations.TypedTuple;

/**
 * Default implementation of TypedTuple.
 * 
 * @author Costin Leau
 */
public class DefaultTypedTuple<V> implements TypedTuple<V> {

    private final Double score;
    private final V value;

    /**
     * Constructs a new <code>DefaultTypedTuple</code> instance.
     * 
     * @param value
     * @param score
     */
    public DefaultTypedTuple(V value, Double score) {
        this.score = score;
        this.value = value;
    }

    public Double getScore() {
        return score;
    }

    public V getValue() {
        return value;
    }

    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((score == null) ? 0 : score.hashCode());
        result = prime * result + ((value == null) ? 0 : value.hashCode());
        return result;
    }

    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (!(obj instanceof DefaultTypedTuple))
            return false;
        DefaultTypedTuple<?> other = (DefaultTypedTuple<?>) obj;
        if (score == null) {
            if (other.score != null)
                return false;
        } else if (!score.equals(other.score))
            return false;
        if (value == null) {
            if (other.value != null)
                return false;
        } else if (value instanceof byte[]) {
            if (!(other.value instanceof byte[])) {
                return false;
            }
            return Arrays.equals((byte[]) value, (byte[]) other.value);
        } else if (!value.equals(other.value))
            return false;
        return true;
    }

    public int compareTo(Double o) {

        double thisScore = (score == null ? 0.0 : score);
        double otherScore = (o == null ? 0.0 : o);

        return Double.compare(thisScore, otherScore);
    }

    @Override
    public int compareTo(TypedTuple<V> o) {

        if (o == null) {
            return compareTo(Double.valueOf(0));
        }

        return compareTo(o.getScore());
    }
}