Package 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

Modifier and Type	Method	Description
static <T> Iterator<T>	iterator(Iterator<?> delegate)	Silences generics warning when need to cast iterator 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 Details

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

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