org.eel.kitchen.util
Class CollectionUtils

java.lang.Object
  org.eel.kitchen.util.CollectionUtils

public final class CollectionUtils
extends Object

Utilities to provide simple generics equivalents to some of Apache's commons-collection package (which still doesn't use generics as of 2011!)

Constructor Summary

CollectionUtils()

Method Summary

static <K,V> Map<K,V>	toMap(Iterator<Map.Entry<K,V>> iterator) Generics equivalent of commons-collections' IteratorUtils.toMap()
static <T> Set<T>	toSet(Iterator<T> iterator) Return a "type-safe" set
static <K,V> SortedMap<K,V>	toSortedMap(Iterator<Map.Entry<K,V>> iterator) Like #toMap, but returns a SortedMap instead of a plain Map.

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionUtils

public CollectionUtils()

Method Detail

toMap

public static <K,V> Map<K,V> toMap(Iterator<Map.Entry<K,V>> iterator)

Generics equivalent of commons-collections' IteratorUtils.toMap()

Type Parameters:

K - keys type

V - values type

Parameters:

iterator - The entry iterator to build the map out of

Returns:

a type-safe HashMap

toSortedMap

public static <K,V> SortedMap<K,V> toSortedMap(Iterator<Map.Entry<K,V>> iterator)

Like #toMap, but returns a SortedMap instead of a plain Map. Note that it returns a TreeMap, which is not thread-safe (we don't need it in our context anyway).

Type Parameters:

K - keys type

V - values type

Parameters:

iterator - The entry iterator to build the map out of

Returns:

a type-safe TreeMap

toSet

public static <T> Set<T> toSet(Iterator<T> iterator)

Return a "type-safe" set

Type Parameters:

T - elements type

Parameters:

iterator - the iterator to build the set out of

Returns:

a type-safe HashSet