local.tomas.util.collections
Class Collections

java.lang.Object
  local.tomas.util.collections.Collections

public final class Collections
extends Object

Collection utilities.

Author:

Teubner

Method Summary

static <T,C extends Collection<T>> C	filter(ObjectFilter filter, Collection<T> source, C target) Filter a collection.
static <F,T,C extends Collection<T>> C	map(ObjectMapping<T> mapping, Collection<F> source, C target) Map a collection.

Methods inherited from class java.lang.Object

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

Method Detail

filter

public static <T,C extends Collection<T>> C filter(ObjectFilter filter,
                                                   Collection<T> source,
                                                   C target)

Filter a collection. All objects from a source collection which pass the filter are added to the target collection.

Type Parameters:

T - type of source collection members

C - type of target collection

Parameters:

filter - filter

source - source collection

target - target collection

Returns:

the target collection

map

public static <F,T,C extends Collection<T>> C map(ObjectMapping<T> mapping,
                                                  Collection<F> source,
                                                  C target)

Map a collection. All objects from a source collection are passed through a mapping and added to a target collection.

Type Parameters:

F - type of source collection members

T - type of mapping result

C - type of target collection

Parameters:

mapping - mapping

source - source collection

target - target collection

Returns:

the target collection