Package net.n2oapp.framework.access.metadata.accesspoint.util

Class CollectionsUtil

java.lang.Object

net.n2oapp.framework.access.metadata.accesspoint.util.CollectionsUtil

public class CollectionsUtil
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CollectionsUtil.GetNameCallback<E>
static class	CollectionsUtil.IdExtractor<V extends IdAware<T>,T>
static interface	CollectionsUtil.KeyExtractor<K,V>

Constructor Summary

Constructors

Constructor	Description
CollectionsUtil()

Method Summary

Modifier and Type	Method	Description
static <T> List<T>	add(List<T> list, T t)
static <T> Set<T>	add(Set<T> list, T t)
static <T> List<T>	checkForNull(List<T> list)
static <T> Set<T>	checkForNull(Set<T> list)
static <V extends Neighbor<V>> void	introduceAllEachOther(List<V> list)	применяется когда нужно "познакомить" все элементы коллекции друг с другом без лишних обходов (есть тест)
static <V extends Neighbor<V>> void	introduceAllEachOther(V[] array)
static String	listToString(String split, List<String> args)
static <E> String	toEnumeration(Collection<E> models, CollectionsUtil.GetNameCallback<E> callback)
static <E> String	toEnumeration(Collection<E> models, CollectionsUtil.GetNameCallback<E> callback, String sep)
static List<Integer>	toIntList(String string)
static <K,V> Map<K,V>	toMap(Collection<V> list, CollectionsUtil.KeyExtractor<K,V> keyExtractor)
static List<String>	toStringList(String string)
static Set<String>	toStringSet(String string)

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionsUtil

public CollectionsUtil()

Method Detail

introduceAllEachOther

public static <V extends Neighbor<V>> void introduceAllEachOther(List<V> list)

применяется когда нужно "познакомить" все элементы коллекции друг с другом без лишних обходов (есть тест)

introduceAllEachOther

public static <V extends Neighbor<V>> void introduceAllEachOther(V[] array)

toMap

public static <K,V> Map<K,V> toMap(Collection<V> list,
                                               CollectionsUtil.KeyExtractor<K,V> keyExtractor)

toEnumeration

public static <E> String toEnumeration(Collection<E> models,
                                       CollectionsUtil.GetNameCallback<E> callback)

toEnumeration

public static <E> String toEnumeration(Collection<E> models,
                                       CollectionsUtil.GetNameCallback<E> callback,
                                       String sep)

toIntList

public static List<Integer> toIntList(String string)

toStringList

public static List<String> toStringList(String string)

toStringSet

public static Set<String> toStringSet(String string)

add

public static <T> List<T> add(List<T> list,
                              T t)

add

public static <T> Set<T> add(Set<T> list,
                             T t)

checkForNull

public static <T> List<T> checkForNull(List<T> list)

checkForNull

public static <T> Set<T> checkForNull(Set<T> list)

listToString

public static String listToString(String split,
                                  List<String> args)