org.apache.wicket.util.lang
Class Generics

java.lang.Object
  org.apache.wicket.util.lang.Generics

public class Generics
extends Object

Generics related utilities

Author:

igor.vaynberg

Method Summary

static <T> Iterator<T>	iterator(Iterator<?> delegate) Silences generics warning when need to cast iterator types
static <T> IModel<T>	model(IModel<?> model) Supresses generics warning when converting model types
static <T> ArrayList<T>	newArrayList() Creates a new ArrayList
static <T> ArrayList<T>	newArrayList(int capacity) Creates a new ArrayList
static <K,V> ConcurrentHashMap<K,V>	newConcurrentHashMap() Creates a new ConcurrentHashMap
static <K,V> ConcurrentHashMap<K,V>	newConcurrentHashMap(int initialCapacity) Creates a new ConcurrentHashMap
static <K,V> HashMap<K,V>	newHashMap() Creates a new HashMap
static <K,V> HashMap<K,V>	newHashMap(int capacity) Creates a new HashMap

Methods inherited from class java.lang.Object

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

Method Detail

iterator

public static <T> Iterator<T> iterator(Iterator<?> delegate)

Silences generics warning when need to cast iterator types

Type Parameters:

T -

Parameters:

delegate -

Returns:

delegate iterator cast to proper generics type

model

public static <T> IModel<T> model(IModel<?> model)

Supresses generics warning when converting model types

Type Parameters:

T -

Parameters:

model -

Returns:

model

newHashMap

public static <K,V> HashMap<K,V> newHashMap()

Creates a new HashMap

Type Parameters:

K -

V -

Returns:

new hash map

newHashMap

public static <K,V> HashMap<K,V> newHashMap(int capacity)

Creates a new HashMap

Type Parameters:

K -

V -

Parameters:

capacity - initial capacity

Returns:

new hash map

newArrayList

public static <T> ArrayList<T> newArrayList(int capacity)

Creates a new ArrayList

Type Parameters:

T -

Parameters:

capacity - initial capacity

Returns:

array list

newArrayList

public static <T> ArrayList<T> newArrayList()

Creates a new ArrayList

Type Parameters:

T -

Returns:

array list

newConcurrentHashMap

public static <K,V> ConcurrentHashMap<K,V> newConcurrentHashMap()

Creates a new ConcurrentHashMap

Type Parameters:

K -

V -

Returns:

new hash map

newConcurrentHashMap

public static <K,V> ConcurrentHashMap<K,V> newConcurrentHashMap(int initialCapacity)

Creates a new ConcurrentHashMap

Type Parameters:

K -

V -

Parameters:

initialCapacity - initial capacity

Returns:

new hash map