org.apache.commons.collections4.functors

Class ForClosure<E>

  • All Implemented Interfaces:
    Closure<E> 

    public class ForClosure<E>
extends Object
implements Closure<E>
    Closure implementation that calls another closure n times, like a for loop.

    WARNING: from v4.1 onwards this class will not be serializable anymore in order to prevent potential remote code execution exploits. Please refer to COLLECTIONS-580 for more details.

    Since:
    3.0

    • Constructor Detail

      • ForClosure

        public ForClosure(int count,
                  Closure<? super E> closure)
        Constructor that performs no validation. Use forClosure if you want that.
        Parameters:
        count - the number of times to execute the closure
        closure - the closure to execute, not null

    • Method Detail

      • forClosure

        public static <E> Closure<E> forClosure(int count,
                                        Closure<? super E> closure)
        Factory method that performs validation.

        A null closure or zero count returns the NOPClosure. A count of one returns the specified closure.

        Type Parameters:
        E - the type that the closure acts on
        Parameters:
        count - the number of times to execute the closure
        closure - the closure to execute, not null
        Returns:
        the for closure

      • execute

        public void execute(E input)
        Executes the closure count times.
        Specified by:
        execute in interface  Closure<E>
        Parameters:
        input - the input object

      • getClosure

        public Closure<? super E> getClosure()
        Gets the closure.
        Returns:
        the closure
        Since:
        3.1

      • getCount

        public int getCount()
        Gets the count.
        Returns:
        the count
        Since:
        3.1