org.osgl

Interface Lang.Func0<R>

Type Parameters:

R - the generic type of the return value, could be Void

All Known Implementing Classes:

ContextLocal.InitialValueProvider, ContextLocalBase, Img._Load, Img.BinarySourceProcessor, Img.Blur, Img.Blur.Stage, Img.Concatenater, Img.Concatenater.Stage, Img.Cropper, Img.Cropper.Stage, Img.Filter, Img.Flip, Img.Flip.Stage, Img.NoiseMaker, Img.NoiseMaker.Stage, Img.Processor, Img.ProcessorStage, Img.Resizer, Img.Resizer.Stage, Img.TextWriter, Img.TextWriter.Stage, JDKThreadLocal, Lang.F0, Lang.Factory, Lang.Producer, Lang.Provider, Lang.Val, Lang.Var, S.Val, S.Var

Enclosing class:

Lang

public static interface Lang.Func0<R>

Define a function that apply to no parameter (strictly this is not a function)

Since:

0.2

See Also:

Lang.Function, Lang.Func2, Lang.Func3, Lang.Func4, Lang.Func5, Lang.F0

Method Summary

Modifier and Type	Method and Description
R	apply() user application to implement main logic of applying the function

Method Detail

apply

R apply()
 throws NotAppliedException,
        Lang.Break

user application to implement main logic of applying the function

Returns:

the Result instance of type R after appplying the function

Throws:

NotAppliedException - if the function doesn’t apply to the current context

Lang.Break - to short cut collecting operations (fold/reduce) on an container