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

Field Summary

Fields

Modifier and Type	Field and Description
static speiger.src.collections.objects.utils.ObjectLists.EmptyList<?>	EMPTY Empty List reference

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>	emptyList() Returns a Immutable EmptyList instance that is automatically casted.
static <T> ObjectList<T>	singletonList(T element) Creates a Unmodifiable Singleton list
static <T> ObjectList<T>	synchronizedList(ObjectList<T> l) Returns a synchronized List instance based on the instance given.
static <T> ObjectList<T>	synchronizedList(ObjectList<T> l, java.lang.Object mutex) Returns a synchronized List instance based on the instance given.
static <T> ObjectList<T>	unmodifiableList(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

Field Detail

EMPTY

public static final speiger.src.collections.objects.utils.ObjectLists.EmptyList<?> EMPTY

Empty List reference

Constructor Detail

ObjectLists

public ObjectLists()

Method Detail

emptyList

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

Returns a Immutable EmptyList instance that is automatically casted.

Type Parameters:

T - the type of elements maintained by this Collection

Returns:

an empty list

unmodifiableList

public static <T> ObjectList<T> unmodifiableList(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/unmodifyable

Returns:

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

synchronizedList

public static <T> ObjectList<T> synchronizedList(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.

synchronizedList

public static <T> ObjectList<T> synchronizedList(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.

singletonList

public static <T> ObjectList<T> singletonList(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