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package Torello.Java.Function;

/**
 * Function-Pointer
 * <SPAN CLASS=TJF>Input:</SPAN> {@code A, B, C}
 * <SPAN CLASS=TJF>Output:</SPAN> {@code boolean}.
 * 
 * <BR /><BR />
 * <EMBED CLASS="external-html" DATA-FILE-ID=BIGPRED>
 * <EMBED CLASS="globalDefs" DATA-Name='Tri Predicate' DATA-Number=three>
 * @param <A> The type of the first input-parameter.
 * @param <B> The type of the second input-parameter.
 * @param <C> The type of the last input-parameter.
 */
@FunctionalInterface
public interface TriPredicate<A, B, C>
{
    /**
     * Evaluates {@code "this"} predicate on the given arguments.
     * @param a the first input argument
     * @param b the second input argument
     * @param c the third input argument
     * @return <B>TRUE</B> if the input arguments match the predicate, otherwise <B>FALSE</B>
     */
    public boolean test(A a, B b, C c);

    /**
     * <EMBED CLASS="external-html" DATA-FILE-ID="PREDANDMETH">
     * @param other A predicate that will be logically-AND'ed with this predicate
     * @return <EMBED CLASS="external-html" DATA-FILE-ID="PREDANDRET">
     * @throws NullPointerException if parameter {@code 'other'} is null.
     */
    default TriPredicate<A, B, C> and(TriPredicate<? super A, ? super B, ? super C> other)
    { 
        if (other == null)
            throw new NullPointerException("null has been passed to parameter 'other");

        return (A a, B b, C c) -> this.test(a, b, c) && other.test(a, b, c);
    }

    /**
     * <EMBED CLASS="external-html" DATA-FILE-ID="PREDNEGMETH">
     * @return <EMBED CLASS="external-html" DATA-FILE-ID="PREDNEGRET">
     */
    default TriPredicate<A, B, C> negate()
    { return (A a, B b, C c) -> ! this.test(a, b, c); }

    /**
     * <EMBED CLASS="external-html" DATA-FILE-ID="PREDORMETH">
     * @param other a predicate that will be logically-ORed with this predicate
     * @return <EMBED CLASS="external-html" DATA-FILE-ID="PREDORRET">
     * @throws NullPointerException if parameter {@code 'other'} is null.
     */
    default TriPredicate<A, B, C> or(TriPredicate<? super A, ? super B, ? super C> other)
    {
        if (other == null)
            throw new NullPointerException("null has been passed to parameter 'other");

        return (A a, B b, C c) -> this.test(a, b, c) || other.test(a, b, c);
    }
}