All Downloads are FREE. Search and download functionalities are using the official Maven repository.
  • Log In
  • Register

    • org.gridgain.grid.util.lang.GridTuple4 Maven / Gradle / Ivy

    /* 
 Copyright (C) GridGain Systems. 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 org.gridgain.grid.util.lang;

import org.gridgain.grid.util.typedef.*;
import org.gridgain.grid.util.typedef.internal.*;
import org.gridgain.grid.util.tostring.*;
import org.jetbrains.annotations.*;

import java.io.*;
import java.util.*;

/**
 * Convenience class representing mutable tuple of four values.
 * 
    Thread Safety
    
 * This class doesn't provide any synchronization for multi-threaded access
 * and it is responsibility of the user of this class to provide outside
 * synchronization, if needed.
 * @see GridFunc#t4()
 * @see GridFunc#t(Object, Object, Object, Object)
 */
public class GridTuple4 implements Iterable, Externalizable, Cloneable {
    /** Value 1. */
    @GridToStringInclude
    private V1 val1;

    /** Value 2. */
    @GridToStringInclude
    private V2 val2;

    /** Value 3. */
    @GridToStringInclude
    private V3 val3;

    /** Value 4. */
    @GridToStringInclude
    private V4 val4;

    /**
     * Empty constructor required by {@link Externalizable}.
     */
    public GridTuple4() {
        // No-op.
    }

    /**
     * Fully initializes this tuple.
     *
     * @param val1 First value.
     * @param val2 Second value.
     * @param val3 Third value.
     * @param val4 Forth value.
     */
    public GridTuple4(@Nullable V1 val1, @Nullable V2 val2, @Nullable V3 val3, @Nullable V4 val4) {
        this.val1 = val1;
        this.val2 = val2;
        this.val3 = val3;
        this.val4 = val4;
    }

    /**
     * Gets first value.
     *
     * @return First value.
     */
    @Nullable public V1 get1() {
        return val1;
    }

    /**
     * Gets second value.
     *
     * @return Second value.
     */
    @Nullable public V2 get2() {
        return val2;
    }

    /**
     * Gets third value.
     *
     * @return Third value.
     */
    @Nullable public V3 get3() {
        return val3;
    }

    /**
     * Gets forth value.
     *
     * @return Forth value.
     */
    @Nullable public V4 get4() {
        return val4;
    }

    /**
     * Sets first value.
     *
     * @param val1 First value.
     */
    public void set1(@Nullable V1 val1) {
        this.val1 = val1;
    }

    /**
     * Sets second value.
     *
     * @param val2 Second value.
     */
    public void set2(@Nullable V2 val2) {
        this.val2 = val2;
    }

    /**
     * Sets third value.
     *
     * @param val3 Third value.
     */
    public void set3(@Nullable V3 val3) {
        this.val3 = val3;
    }

    /**
     * Sets fourth value.
     *
     * @param val4 Fourth value.
     */
    public void set4(@Nullable V4 val4) {
        this.val4 = val4;
    }

    /**
     * Sets all values.
     *
     * @param val1 First value.
     * @param val2 Second value.
     * @param val3 Third value.
     * @param val4 Fourth value.
     */
    public void set(@Nullable V1 val1, @Nullable V2 val2, @Nullable V3 val3, @Nullable V4 val4) {
        set1(val1);
        set2(val2);
        set3(val3);
        set4(val4);
    }

    /** {@inheritDoc} */
    @Override public Iterator iterator() {
        return new Iterator() {
            private int nextIdx = 1;

            @Override public boolean hasNext() {
                return nextIdx < 5;
            }

            @Nullable @Override public Object next() {
                if (!hasNext())
                    throw new NoSuchElementException();

                Object res = null;

                if (nextIdx == 1)
                    res = get1();
                else if (nextIdx == 2)
                    res = get2();
                else if (nextIdx == 3)
                    res = get3();
                else if (nextIdx == 4)
                    res = get4();

                nextIdx++;

                return res;
            }

            @Override public void remove() {
                throw new UnsupportedOperationException();
            }
        };
    }

    /** {@inheritDoc} */
    @SuppressWarnings({"CloneDoesntDeclareCloneNotSupportedException"})
    @Override public Object clone() {
        try {
            return super.clone();
        }
        catch (CloneNotSupportedException ignore) {
            throw new InternalError();
        }
    }

    /** {@inheritDoc} */
    @Override public void writeExternal(ObjectOutput out) throws IOException {
        out.writeObject(val1);
        out.writeObject(val2);
        out.writeObject(val3);
        out.writeObject(val4);
    }

    /** {@inheritDoc} */
    @SuppressWarnings({"unchecked"})
    @Override public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        val1 = (V1)in.readObject();
        val2 = (V2)in.readObject();
        val3 = (V3)in.readObject();
        val4 = (V4)in.readObject();
    }

    /** {@inheritDoc} */
    @Override public boolean equals(Object o) {
        if (this == o)
            return true;

        if (!(o instanceof GridTuple4))
            return false;

        GridTuple4 t = (GridTuple4)o;

        return F.eq(val1, t.val2) && F.eq(val2, t.val2) && F.eq(val3, t.val3) && F.eq(val4, t.val4);
    }

    /** {@inheritDoc} */
    @Override public int hashCode() {
        int res = val1 != null ? val1.hashCode() : 0;

        res = 13 * res + (val2 != null ? val2.hashCode() : 0);
        res = 17 * res + (val3 != null ? val3.hashCode() : 0);
        res = 19 * res + (val4 != null ? val4.hashCode() : 0);

        return res;
    }

    /** {@inheritDoc} */
    @Override public String toString() {
        return S.toString(GridTuple4.class, this);
    }
}
    
    
    
    

    




    
    
    © 2015 - 2025 Weber Informatics LLC | Privacy Policy