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All Implemented Interfaces:
Serializable
public final class VMID
extends Object
implements Serializable
A VMID is a identifier that is unique across all Java virtual
machines. VMIDs are used by the distributed garbage collector
to identify client VMs.
See Also:
Serialized Form
Constructor Summary
Constructors
Constructor
Description
VMID ()
Create a new VMID.
Constructor Detail
VMID
public VMID()
Create a new VMID. Each new VMID returned from this constructor
is unique for all Java virtual machines under the following
conditions: a) the conditions for uniqueness for objects of
the class java.rmi.server.UID
are satisfied, and b) an
address can be obtained for this host that is unique and constant
for the lifetime of this object.
Method Detail
isUnique
@Deprecated
public static boolean isUnique()
Deprecated.
Return true if an accurate address can be determined for this
host. If false, reliable VMID cannot be generated from this host
Returns:
true if host address can be determined, false otherwise
equals
public boolean equals(Object obj)
Compare this VMID to another, and return true if they are the
same identifier.
Overrides:
equals
in class Object
Parameters:
obj
- the reference object with which to compare.
Returns:
true
if this object is the same as the obj
argument; false
otherwise.
See Also:
Object.hashCode()
,
HashMap
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