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Java Standard Edition (SE)

VMID


compact2, compact3
java.rmi.dgc

Class VMID

  • 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 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
      • toString

        public String toString()
        Return string representation of this VMID.
        Overrides:
        toString in class Object
        Returns:
        a string representation of the object.


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