speiger.src.collections.objects.utils

Class ObjectLists

java.lang.Object

speiger.src.collections.objects.utils.ObjectLists

public class ObjectLists
extends java.lang.Object

A Helper class for Lists

Constructor Summary

Constructors

Constructor and Description
ObjectLists()

Method Summary

Modifier and Type	Method and Description
static <T> speiger.src.collections.objects.utils.ObjectLists.EmptyList<T>	empty() Returns a Immutable EmptyList instance that is automatically casted.
static <T> ObjectList<T>	reverse(ObjectList<T> list) Reverses the list
static <T> ObjectList<T>	shuffle(ObjectList<T> list) Shuffles the list
static <T> ObjectList<T>	shuffle(ObjectList<T> list, java.util.Random random) Shuffles the list
static <T> ObjectList<T>	singleton(T element) Creates a Unmodifiable Singleton list
static <T> ObjectList<T>	synchronize(ObjectList<T> l) Returns a synchronized List instance based on the instance given.
static <T> ObjectList<T>	synchronize(ObjectList<T> l, java.lang.Object mutex) Returns a synchronized List instance based on the instance given.
static <T> ObjectList<T>	unmodifiable(ObjectList<T> l) Returns a Immutable List instance based on the instance given.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectLists

public ObjectLists()

Method Detail

empty

public static <T> speiger.src.collections.objects.utils.ObjectLists.EmptyList<T> empty()

Returns a Immutable EmptyList instance that is automatically casted.

Type Parameters:

T - the type of elements maintained by this Collection

Returns:

an empty list

unmodifiable

public static <T> ObjectList<T> unmodifiable(ObjectList<T> l)

Returns a Immutable List instance based on the instance given.

Type Parameters:

T - the type of elements maintained by this Collection

Parameters:

l - that should be made immutable/unmodifiable

Returns:

a unmodifiable list wrapper. If the list is implementing RandomAccess that is also transferred. If the List already a unmodifiable wrapper then it just returns itself.

synchronize

public static <T> ObjectList<T> synchronize(ObjectList<T> l)

Returns a synchronized List instance based on the instance given.

Type Parameters:

T - the type of elements maintained by this Collection

Parameters:

l - that should be synchronized

Returns:

a synchronized list wrapper. If the list is implementing RandomAccess or IObjectArray that is also transferred. If the List already a synchronized wrapper then it just returns itself.

synchronize

public static <T> ObjectList<T> synchronize(ObjectList<T> l,
                                            java.lang.Object mutex)

Returns a synchronized List instance based on the instance given.

Type Parameters:

T - the type of elements maintained by this Collection

Parameters:

l - that should be synchronized

mutex - is the controller of the synchronization block.

Returns:

a synchronized list wrapper. If the list is implementing RandomAccess or IObjectArray that is also transferred. If the List already a synchronized wrapper then it just returns itself.

singleton

public static <T> ObjectList<T> singleton(T element)

Creates a Unmodifiable Singleton list

Type Parameters:

T - the type of elements maintained by this Collection

Parameters:

element - that should be used in the Singleton

Returns:

a singleton list that is unmodifiable

reverse

public static <T> ObjectList<T> reverse(ObjectList<T> list)

Reverses the list

Type Parameters:

T - the type of elements maintained by this Collection

Parameters:

list - that should be reversed.

Returns:

the input list

shuffle

public static <T> ObjectList<T> shuffle(ObjectList<T> list)

Shuffles the list

Type Parameters:

T - the type of elements maintained by this Collection

Parameters:

list - that should be Shuffled.

Returns:

the input list

shuffle

public static <T> ObjectList<T> shuffle(ObjectList<T> list,
                                        java.util.Random random)

Shuffles the list

Type Parameters:

T - the type of elements maintained by this Collection

Parameters:

list - that should be Shuffled.

random - the random that should be used

Returns:

the input list