org.opencastproject.util.data

Class Function0<A>

java.lang.Object

org.opencastproject.util.data.Function0<A>

Direct Known Subclasses:

Effect0, Function0.X

public abstract class Function0<A>
extends Object

Function of arity 0, i.e. a constant function.

See Also:

Function0.X

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Function0.X<A> Version of Function0 that allows for throwing a checked exception.

Constructor Summary

Constructors

Constructor and Description
Function0()

Method Summary

Modifier and Type	Method and Description
abstract A	apply() Apply function yielding a constant value.
<B> Function0<B>	then(Function<A,B> f) Apply this function, then pass the result to f.
<B> Function0<B>	then(Function0<B> f) Apply this function and ignore its result, then apply f.
Effect0	toEffect() Turn this function into an effect by discarding its result.

Methods inherited from class java.lang.Object

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

Constructor Detail

Function0

public Function0()

Method Detail

apply

public abstract A apply()

Apply function yielding a constant value. Don't be tempted to become impure!

then

public <B> Function0<B> then(Function<A,B> f)

Apply this function, then pass the result to f.

then

public <B> Function0<B> then(Function0<B> f)

Apply this function and ignore its result, then apply f.

toEffect

public Effect0 toEffect()

Turn this function into an effect by discarding its result.