jade.util.Lambda Class Reference

Classes
interface	FilterFunc< T >
interface	MapFunc< T, R >

Static Public Member Functions
static< T > Iterable< T >	filter (Iterable< T > iterable, FilterFunc< T > lambda)
static< T, R > Iterable< R >	map (Iterable< T > iterable, MapFunc< T, R > lambda)
static< T, RextendsT > Iterable< R >	filterType (Iterable< T > iterable, final Class< R > cls)
static< T > T	first (Iterable< T > iterable)
static< T > List< T >	toList (Iterable< T > iterable)
static< T > Set< T >	toSet (Iterable< T > iterable)

Detailed Description

Lambda 

contains methods for manipulating

Iterable<T> 

. Many of these concepts, such as map and reduce, were borrowed from functional programming.

Member Function Documentation

static <T> Iterable<T> jade.util.Lambda.filter ( Iterable< T >  iterable, FilterFunc< T >  lambda  )

static

Returns a new

Iterable<T> 

which is all the elements of the given

Iterable<T> 

for which the provided

FilterFunc<T> 

returns true.

Parameters

<T>	the type of the elements being filtered
iterable	the Iterable<T> being filtered
lambda	returns true for any element of iterable to be retained

Returns

a filtered copy of iterable

static <T,RextendsT> Iterable<R> jade.util.Lambda.filterType ( Iterable< T >  iterable, final Class< R >  cls  )

static

Returns a new

Iterable<R> 

containing only the elements of the given

Iterable<T> 

which are of type

R 

.

Parameters

<T>	the type of the elements being filtered
<R>	the type of the elements to be retained
iterable	the iterable being queried
cls	the class of R

Returns

the elements of iterable which are of type

R 

static <T> T jade.util.Lambda.first ( Iterable< T >  iterable )

static

Returns the first element of the given

Iterable<T> 

.

Parameters

<T>	the type of the element being selected
iterable	the Iterable<T> being queried

Returns

the first element of the iterable

static <T,R> Iterable<R> jade.util.Lambda.map ( Iterable< T >  iterable, MapFunc< T, R >  lambda  )

static

Returns a new

Iterable<R> 

which contains every element of the given

Iterable<T> 

mapped by the provided

MapFunc<T, R> 

.

Parameters

<T>	the type of the elements being mapped
<R>	the type the elements are being mapped to
iterable	the iterable being mapped
lambda	the mapping function

Returns

a new

Iterable<R> 

which is the result of mapping iterable

static <T> List<T> jade.util.Lambda.toList ( Iterable< T >  iterable )

static

Converts an

Iterable<T> 

to a new

List<T> 

.

Parameters

<T>	the type of the elements being converted to a list
iterable	the Iterable<T> to be converted

Returns

a new

List<T> 

whose contents are that of iterable

static <T> Set<T> jade.util.Lambda.toSet ( Iterable< T >  iterable )

static

Converts an

Iterable<T> 

to a new

Set<T> 

.

Parameters

<T>	the type of the elements being converted to a set
iterable	the Iterable<T> to be converted

Returns

a new

Set<T> 

whose contents are that of iterable

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The documentation for this class was generated from the following file:

• jade/util/Lambda.java