public enum ReferenceType extends Enum<ReferenceType>
Reference
Enum Constant and Description |
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PHANTOM
Similar to weak references except the garbage collector doesn't actually
reclaim the referent.
|
SOFT
Referent reclaimed in an LRU fashion when the VM runs low on memory and
no strong references exist.
|
STRONG
Prevents referent from being reclaimed by the garbage collector.
|
WEAK
Referent reclaimed when no strong or soft references exist.
|
Modifier and Type | Method and Description |
---|---|
static ReferenceType |
valueOf(String name)
Returns the enum constant of this type with the specified name.
|
static ReferenceType[] |
values()
Returns an array containing the constants of this enum type, in
the order they are declared.
|
public static final ReferenceType STRONG
public static final ReferenceType SOFT
SoftReference
public static final ReferenceType WEAK
WeakReference
public static final ReferenceType PHANTOM
PhantomReference
public static ReferenceType[] values()
for (ReferenceType c : ReferenceType.values()) System.out.println(c);
public static ReferenceType valueOf(String name)
name
- the name of the enum constant to be returned.IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is nullCopyright © 2000–2020 Apache Software Foundation. All rights reserved.