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package Torello.Java.Additional;

/**
 * This simple generic-class allows a function to return <B STYLE='color:red'>five</B> objects as a
 * result, instead of just one.   This is not always so useful, and can make code confusing.
 * However there are some instances where the only alternative would be to create an entirely new
 * class/object, when only a single method result would use that object.
 * 
 * <EMBED CLASS=globalDefs DATA-KIND=Ret DATA-N=5>
 * <EMBED CLASS='external-html' DATA-N=5 DATA-FILE-ID=IMMUTABLE_RET>
 * @param <A> The type of the <B STYLE='color:red'>first</B> member-field ('{@link #a}').
 * @param <B> The type of the <B STYLE='color:red'>second</B> member-field ('{@link #b}').
 * @param <C> The type of the <B STYLE='color:red'>third</B> member-field ('{@link #c}').
 * @param <D> The type of the <B STYLE='color:red'>fourth</B> member-field ('{@link #d}').
 * @param <E> The type of the <B STYLE='color:red'>last</B> member-field ('{@link #e}').
 */
public class Ret5<A, B, C, D, E>
    extends RetN
    implements java.io.Serializable, Cloneable
{
    /** <EMBED CLASS='external-html' DATA-FILE-ID=SVUID>  */
    protected static final long serialVersionUID = 1;

    /** This holds a pointer the first response object. */
    public final A a;

    /** This holds a pointer to the second response object. */
    public final B b;

    /** This holds a pointer to the third response object. */
    public final C c;

    /** This holds a pointer to the fourth response object. */
    public final D d;

    /** This holds a pointer to the fifth response object. */
    public final E e;

    /** Constructs this object */
    public Ret5(A a, B b, C c, D d, E e)
    {
        this.a = a;
        this.b = b;
        this.c = c;
        this.d = d;
        this.e = e;
    }

    /**
     * Returns {@code '5'}, indicating how many fields are declared by this class.
     * @return As an instance of {@code Ret5}, this method returns {@code '5'};
     */
    public int n() { return 5; }

    // Super-class uses this for toString, equals, and hashCode
    // There is an optimization, so if this is requested multiple times, it is saved in a
    // transient field.

    final Object[] asArrayInternal()
    { return new Object[] { a, b, c, d, e }; }

    public Ret5<A, B, C, D, E> clone()
    { return new Ret5<>(this.a, this.b, this.c, this.d, this.e); }

    /**
     * <EMBED CLASS=defs DATA-TEXT="Integer, Date, File, DotPair">
     * <EMBED CLASS='external-html' DATA-FILE-ID=MULTI_TYPE_EX_COMMON>
     * <EMBED CLASS='external-html' DATA-FILE-ID=MULTI_TYPE_GET_EXAMPLE>
     */
    public Object get(final int i)
    {
        // Throws Exception if i not in [1..5]
        CHECK_GET(i);

        if (i <= 3) switch (i)
        {
            case 1:     return a;
            case 2:     return b;
            default:    return c;
        }

        else return (i == 4) ? d : e;
    }

    public Tuple5<A, B, C, D, E> toModifiable()
    { return new Tuple5<>(this.a, this.b, this.c, this.d, this.e); }
}