Package com.sun.faces.util

Class TypedCollections

java.lang.Object

com.sun.faces.util.TypedCollections

public class TypedCollections
extends Object

Constructor Summary

Constructors

Constructor	Description
TypedCollections()

Method Summary

Modifier and Type	Method	Description
static <E,TypedC extends Collection<E>> TypedC	dynamicallyCastCollection(Collection<?> c, Class<E> type, Class<TypedC> collectionType)	Dynamically check that the members of the collection are all instances of the given type (or null), and that the collection itself is of the given collection type.
static <E> List<E>	dynamicallyCastList(List<?> list, Class<E> type)	Dynamically check that the members of the list are all instances of the given type (or null).
static <K,V> Map<K,V>	dynamicallyCastMap(Map<?,?> map, Class<K> keyType, Class<V> valueType)	Dynamically check that the keys and values in the map are all instances of the correct types (or null).
static <E> Set<E>	dynamicallyCastSet(Set<?> set, Class<E> type)	Dynamically check that the members of the set are all instances of the given type (or null).

Methods inherited from class java.lang.Object

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

Constructor Detail

TypedCollections

public TypedCollections()

Method Detail

dynamicallyCastCollection

public static <E,TypedC extends Collection<E>> TypedC dynamicallyCastCollection(Collection<?> c,
                                                                                      Class<E> type,
                                                                                      Class<TypedC> collectionType)

Dynamically check that the members of the collection are all instances of the given type (or null), and that the collection itself is of the given collection type.

Type Parameters:

E - the collection's element type

Parameters:

c - the collection to cast

type - the class of the collection's element type.

Returns:

the dynamically-type checked collection.

Throws:

ClassCastException

dynamicallyCastList

public static <E> List<E> dynamicallyCastList(List<?> list,
                                              Class<E> type)

Dynamically check that the members of the list are all instances of the given type (or null).

Type Parameters:

E - the list's element type

Parameters:

list - the list to cast

type - the class of the list's element type.

Returns:

the dynamically-type checked list.

Throws:

ClassCastException

dynamicallyCastSet

public static <E> Set<E> dynamicallyCastSet(Set<?> set,
                                            Class<E> type)

Dynamically check that the members of the set are all instances of the given type (or null).

Type Parameters:

E - the set's element type

Parameters:

set - the set to cast

type - the class of the set's element type.

Returns:

the dynamically-type checked set.

Throws:

ClassCastException

dynamicallyCastMap

public static <K,V> Map<K,V> dynamicallyCastMap(Map<?,?> map,
                                                            Class<K> keyType,
                                                            Class<V> valueType)

Dynamically check that the keys and values in the map are all instances of the correct types (or null).

Type Parameters:

K - the map's key type

V - the map's value type

Parameters:

map - the map to cast

keyType - the class of the map's key type.

valueType - the class of the map's value type.

Returns:

the dynamically-type checked map.

Throws:

ClassCastException