ConstantPredicate.java

package org.simpleflatmapper.util;

public class ConstantPredicate<T> implements Predicate<T>{

    private static final ConstantPredicate TRUE = new ConstantPredicate(true);

    private static final ConstantPredicate FALSE = new ConstantPredicate(false);

    public static <T> ConstantPredicate<T> truePredicate() {
        return TRUE;
    }

    public static <T> ConstantPredicate<T> falsePredicate() {
        return FALSE;
    }

    private final boolean b;

    private ConstantPredicate(boolean b) {
        this.b = b;
    }

    @Override
    public boolean test(T t) {
        return b;
    }
}