Package ru.progrm_jarvis.javacommons.collection

Class CollectionFactory

java.lang.Object

ru.progrm_jarvis.javacommons.collection.CollectionFactory

public final class CollectionFactory
extends Object

Factory used for creation of special collections at classload.

Field Summary

Fields

Modifier and Type	Field	Description
static final @NotNull javassist.CtClass @NotNull @Unmodifiable []	EMPTY_CT_CLASS_ARRAY	Empty array of CtClasses.

Method Summary

Modifier and Type	Method	Description
static <E extends Enum<E>> Set<E>	createImmutableEnumSet(@NonNull E... values)	Deprecated.

Methods inherited from class java.lang.Object

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

Field Details

EMPTY_CT_CLASS_ARRAY

@NotNull
public static final @NotNull javassist.CtClass @NotNull @Unmodifiable [] EMPTY_CT_CLASS_ARRAY

Empty array of CtClasses.

Method Details

createImmutableEnumSet

@SafeVarargs
@Deprecated
@UsesBytecodeModification(value=JAVASSIST,
                          optional=true)
public static <E extends Enum<E>> Set<E> createImmutableEnumSet(@NonNull
 @NonNull E... values)

Deprecated.

Creates an immutable enum set from the given array of stored enum constants.

Type Parameters:

E - type of enum

Parameters:

values - enum constants to be stored in the given set

Returns:

runtime-compiled optimized immutable enum set for the given enum values or a pre-compiled n empty set if values is empty

API note

at current, the instances are cached and not GC-ed (as their classes) so this should be used carefully, this implementation of immutable enum Sets is specific and should be used carefully instanceof and switch by Enum.ordinal() are used for containment-related checks and