Package org.apache.commons.collections4
Interface Closure<T>
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- Type Parameters:
T
- the type that the closure acts on
- All Known Implementing Classes:
CatchAndRethrowClosure
,ChainedClosure
,ExceptionClosure
,ForClosure
,IfClosure
,NOPClosure
,SwitchClosure
,TransformerClosure
,WhileClosure
- Functional Interface:
- This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface 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
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description void
execute(T input)
Performs an action on the specified input object.
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Method Detail
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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 classjava.lang.IllegalArgumentException
- (runtime) if the input is invalidFunctorException
- (runtime) if any other error occurs
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