org.apache.commons.collections4.functors

Class TransformedPredicate<T>

    • Constructor Detail

      • TransformedPredicate

        public TransformedPredicate(Transformer<? super T,? extends T> transformer,
                            Predicate<? super T> predicate)
        Constructor that performs no validation. Use transformedPredicate if you want that.
        Parameters:
        transformer - the transformer to use
        predicate - the predicate to decorate

    • Method Detail

      • transformedPredicate

        public static <T> Predicate<T> transformedPredicate(Transformer<? super T,? extends T> transformer,
                                                    Predicate<? super T> predicate)
        Factory to create the predicate.
        Type Parameters:
        T - the type that the predicate queries
        Parameters:
        transformer - the transformer to call
        predicate - the predicate to call with the result of the transform
        Returns:
        the predicate
        Throws:
        NullPointerException - if the transformer or the predicate is null

      • evaluate

        public boolean evaluate(T object)
        Evaluates the predicate returning the result of the decorated predicate once the input has been transformed
        Specified by:
        evaluate in interface  Predicate<T>
        Parameters:
        object - the input object which will be transformed
        Returns:
        true if decorated predicate returns true

      • getPredicates

        public Predicate<? super T>[] getPredicates()
        Gets the predicate being decorated.
        Specified by:
        getPredicates in interface  PredicateDecorator<T>
        Returns:
        the predicate as the only element in an array
        Since:
        3.1

      • getTransformer

        public Transformer<? super T,? extends T> getTransformer()
        Gets the transformer in use.
        Returns:
        the transformer