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/**
 * Copyright (c) 2014, Data Geekery GmbH, [email protected]
 *
 * 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 org.jooq.lambda.tuple;

import java.io.Serializable;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Objects;
import java.util.Optional;

import org.jooq.lambda.function.Function1;
import org.jooq.lambda.function.Function4;

/**
 * A tuple of degree 4.
 *
 * @author Lukas Eder
 */
public class Tuple4 implements Tuple, Comparable>, Serializable, Cloneable {
    
    public final T1 v1;
    public final T2 v2;
    public final T3 v3;
    public final T4 v4;
    
    public T1 v1() {
        return v1;
    }
    
    public T2 v2() {
        return v2;
    }
    
    public T3 v3() {
        return v3;
    }
    
    public T4 v4() {
        return v4;
    }
    
    public Tuple4(Tuple4 tuple) {
        this.v1 = tuple.v1;
        this.v2 = tuple.v2;
        this.v3 = tuple.v3;
        this.v4 = tuple.v4;
    }

    public Tuple4(T1 v1, T2 v2, T3 v3, T4 v4) {
        this.v1 = v1;
        this.v2 = v2;
        this.v3 = v3;
        this.v4 = v4;
    }
    
    /**
     * Apply this tuple as arguments to a function.
     */
    public final  R map(Function4 function) {
        return function.apply(this);
    }
    
    /**
     * Apply attribute 1 as argument to a function and return a new tuple with the substituted argument.
     */
    public final  Tuple4 map1(Function1 function) {
        return Tuple.tuple(function.apply(v1), v2, v3, v4);
    }
    
    /**
     * Apply attribute 2 as argument to a function and return a new tuple with the substituted argument.
     */
    public final  Tuple4 map2(Function1 function) {
        return Tuple.tuple(v1, function.apply(v2), v3, v4);
    }
    
    /**
     * Apply attribute 3 as argument to a function and return a new tuple with the substituted argument.
     */
    public final  Tuple4 map3(Function1 function) {
        return Tuple.tuple(v1, v2, function.apply(v3), v4);
    }
    
    /**
     * Apply attribute 4 as argument to a function and return a new tuple with the substituted argument.
     */
    public final  Tuple4 map4(Function1 function) {
        return Tuple.tuple(v1, v2, v3, function.apply(v4));
    }
    
    @Override
    public final Object[] array() {
        return new Object[] { v1, v2, v3, v4 };
    }

    @Override
    public final List list() {
        return Arrays.asList(array());
    }

    /**
     * The degree of this tuple: 4.
     */
    @Override
    public final int degree() {
        return 4;
    }

    @Override
    @SuppressWarnings("unchecked")
    public final Iterator