compact2, compact3
java.rmi.dgc
Class VMID
- java.lang.Object
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- java.rmi.dgc.VMID
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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
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Constructor Summary
Constructors Constructor and Description VMID()Create a new VMID.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method and Description booleanequals(Object obj)Compare this VMID to another, and return true if they are the same identifier.inthashCode()Compute hash code for this VMID.static booleanisUnique()Deprecated.StringtoString()Return string representation of this VMID.
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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 classjava.rmi.server.UIDare satisfied, and b) an address can be obtained for this host that is unique and constant for the lifetime of this object.
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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
hashCode
public int hashCode()
Compute hash code for this VMID.- Overrides:
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hashCodein classObject - Returns:
- a hash code value for this object.
- See Also:
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Object.equals(java.lang.Object),System.identityHashCode(java.lang.Object)
equals
public boolean equals(Object obj)
Compare this VMID to another, and return true if they are the same identifier.- Overrides:
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equalsin classObject - Parameters:
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obj- the reference object with which to compare. - Returns:
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trueif this object is the same as the obj argument;falseotherwise. - See Also:
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Object.hashCode(),HashMap
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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