Class ChainedClosure<E>

java.lang.Object

org.apache.commons.collections4.functors.ChainedClosure<E>

All Implemented Interfaces:

Serializable, Closure<E>

public class ChainedClosure<E>
extends Object
implements Closure<E>, Serializable

Closure implementation that chains the specified closures together.

Since:

3.0

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private final Closure<? super E>[]	iClosures	The closures to call in turn
private static final long	serialVersionUID	Serial version UID

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ChainedClosure(boolean clone, Closure<? super E>... closures)	Hidden constructor for the use by the static factory methods.
	ChainedClosure(Closure<? super E>... closures)	Constructor that performs no validation.

Method Summary

Modifier and Type	Method	Description
static <E> Closure<E>	chainedClosure(Collection<? extends Closure<? super E>> closures)	Create a new Closure that calls each closure in turn, passing the result into the next closure.
static <E> Closure<E>	chainedClosure(Closure<? super E>... closures)	Factory method that performs validation and copies the parameter array.
void	execute(E input)	Execute a list of closures.
Closure<? super E>[]	getClosures()	Gets the closures.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

serialVersionUID

private static final long serialVersionUID

Serial version UID

See Also:

• Constant Field Values

iClosures

private final Closure<? super E>[] iClosures

The closures to call in turn

Constructor Details

ChainedClosure

private ChainedClosure(boolean clone,
 Closure<? super E>... closures)

Hidden constructor for the use by the static factory methods.

Parameters:

clone - if true the input argument will be cloned

closures - the closures to chain, no nulls

ChainedClosure

public ChainedClosure(Closure<? super E>... closures)

Constructor that performs no validation. Use chainedClosure if you want that.

Parameters:

closures - the closures to chain, copied, no nulls

Method Details

chainedClosure

public static <E> Closure<E> chainedClosure(Closure<? super E>... closures)

Factory method that performs validation and copies the parameter array.

Type Parameters:

E - the type that the closure acts on

Parameters:

closures - the closures to chain, copied, no nulls

Returns:

the chained closure

Throws:

NullPointerException - if the closures array is null

NullPointerException - if any closure in the array is null

chainedClosure

public static <E> Closure<E> chainedClosure(Collection<? extends Closure<? super E>> closures)

Create a new Closure that calls each closure in turn, passing the result into the next closure. The ordering is that of the iterator() method on the collection.

Type Parameters:

E - the type that the closure acts on

Parameters:

closures - a collection of closures to chain

Returns:

the chained closure

Throws:

NullPointerException - if the closures collection is null

NullPointerException - if any closure in the collection is null

execute

public void execute(E input)

Execute a list of closures.

Specified by:

execute in interface Closure<E>

Parameters:

input - the input object passed to each closure

getClosures

public Closure<? super E>[] getClosures()

Gets the closures.

Returns:

a copy of the closures

Since:

3.1