Closure

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

All Methods

Instance Methods

Abstract Methods
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:
    
    ClassCastException - (runtime) if the input is the wrong class
    
    IllegalArgumentException - (runtime) if the input is invalid
    
    FunctorException - (runtime) if any other error occurs