com.m3.scalaflavor4j

Class PartialFunction<R>

java.lang.Object

com.m3.scalaflavor4j.PartialFunction<R>

All Implemented Interfaces:

Function1<Object,R>

Direct Known Subclasses:

PartialF

public class PartialFunction<R>
extends Object
implements Function1<Object,R>

A partial function of type PartialFunction[A, B] is a unary function where the domain does not necessarily include all values of type A. The function isDefinedAt allows to test dynamically if a value is in the domain of the function.

Method Summary

Methods

Modifier and Type	Method and Description
static <R> PartialF<R>	apply(CaseClause<?,R>... caseClauses)
R	apply(Object v)
static <R> PartialF<R>	apply(Seq<CaseClause<?,R>> caseClauses)
Seq<CaseClause<?,R>>	getCaseClauses()
boolean	isDefinedAt(Object v) Checks if a value is contained in the function's domain.
PartialFunction<R>	orElse(PartialFunction<R> that) Composes this partial function with a fallback partial function which gets applied where this partial function is not defined.

Methods inherited from class java.lang.Object

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

Method Detail

apply

public static <R> PartialF<R> apply(CaseClause<?,R>... caseClauses)

apply

public static <R> PartialF<R> apply(Seq<CaseClause<?,R>> caseClauses)

getCaseClauses

public Seq<CaseClause<?,R>> getCaseClauses()

apply

public R apply(Object v)
        throws Exception

Specified by:

apply in interface Function1<Object,R>

Throws:

Exception

isDefinedAt

public boolean isDefinedAt(Object v)

Checks if a value is contained in the function's domain.

orElse

public PartialFunction<R> orElse(PartialFunction<R> that)

Composes this partial function with a fallback partial function which gets applied where this partial function is not defined.