org.apache.commons.collections4

Interface Closure<T>

Type Parameters:

T - the type that the closure acts on

All Known Implementing Classes:

CatchAndRethrowClosure, ChainedClosure, ExceptionClosure, ForClosure, IfClosure, NOPClosure, SwitchClosure, TransformerClosure, WhileClosure

public interface Closure<T>

Defines a functor interface implemented by classes that do something.

A Closure represents a block of code which is executed from inside some block, function or iteration. It operates an input object.

Standard implementations of common closures are provided by ClosureUtils. These include method invocation and for/while loops.

Since:

1.0

Method Summary

Modifier and Type	Method and Description
void	execute(T input) Performs an action on the specified input object.

Method Detail

execute

void execute(T input)

Performs an action on the specified input object.

Parameters:

input - the input to execute on

Throws:

java.lang.ClassCastException - (runtime) if the input is the wrong class

java.lang.IllegalArgumentException - (runtime) if the input is invalid

FunctorException - (runtime) if any other error occurs