public enum ReferenceType extends Enum<ReferenceType>
Reference| Enum Constant and Description | 
|---|
| PHANTOMSimilar to weak references except the garbage collector doesn't actually
 reclaim the referent. | 
| SOFTReferent reclaimed in an LRU fashion when the VM runs low on memory and
 no strong references exist. | 
| STRONGPrevents referent from being reclaimed by the garbage collector. | 
| WEAKReferent 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
SoftReferencepublic static final ReferenceType WEAK
WeakReferencepublic static final ReferenceType PHANTOM
PhantomReferencepublic 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 © 2000–2025 Apache Software Foundation. All rights reserved.