org.osgl

Class Lang.Provider<ELEMENT>

java.lang.Object

org.osgl.Lang.FuncBase

org.osgl.Lang.F0<ELEMENT>

org.osgl.Lang.Provider<ELEMENT>

Type Parameters:

ELEMENT - the type of the returning element

All Implemented Interfaces:

Lang.Func0<ELEMENT>

Direct Known Subclasses:

Img._Load, Lang.Producer

Enclosing class:

Lang

public abstract static class Lang.Provider<ELEMENT>
extends Lang.F0<ELEMENT>

A Provider is a function that apply to nothing and return an element

Constructor Summary

Constructors

Constructor and Description
Provider()

Method Summary

Modifier and Type	Method and Description
ELEMENT	apply() user application to implement main logic of applying the function
abstract ELEMENT	get() Get the element

Methods inherited from class org.osgl.Lang.F0

andThen, andThen, applyOrElse, lift, orElse

Methods inherited from class org.osgl.Lang.FuncBase

breakOut

Methods inherited from class java.lang.Object

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

Constructor Detail

Provider

public Provider()

Method Detail

apply

public final ELEMENT apply()
                    throws NotAppliedException,
                           Lang.Break

Description copied from interface: Lang.Func0

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

get

public abstract ELEMENT get()

Get the element

Returns:

the element the provider provides