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java.rmi.server
Class ObjID  

java.lang.Object
  java.rmi.server.ObjID

All Implemented Interfaces:

java.io.Serializable

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public final class ObjID

extends java.lang.Object

implements java.io.Serializable

Represents the object identifier, unique for the host that generated it. The ObjID contains inside the integer object identifier that, if needed, may indicated that this is a reference to one of the well known objects on that host (registry, activator or dgc) and the UID that ensures uniqueness.

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Field Summary
static int	ACTIVATOR_ID           Defines the ID of the activator.
static int	DGC_ID           Defines the ID of the distributed garbage collector.
private static java.lang.Object	lock           The object to put the lock on when incrementing next 55
private static long	next           The object counter, which value is assigned when creating the ordinary objects without the known object id.
(package private)  long	objNum           The object Id (either well-known value or the value of the incrementing object counter.
static int	REGISTRY_ID           Defines the ID of the naming service.
(package private) static long	serialVersionUID           Use serial version uid for interoperability.
(package private)  UID	space           The object unique identifier, generated individually for each object.

 

Constructor Summary

ObjID()           Create the new object id, unique for this host.

ObjID(int id)           Create the new object id defining the well known remotely accessible object, present in this host.

 

Method Summary
(package private) static boolean	eq(java.lang.Object a, java.lang.Object b)           Compare by .equals if both a and b are not null, compare directly if at least one of them is null.
boolean	equals(java.lang.Object obj)           Compare for equality.
int	hashCode()           Get the hashcode.
static ObjID	read(java.io.ObjectInput in)           Read object id (as long), then the object UID.
java.lang.String	toString()           Get the string representation.
void	write(java.io.ObjectOutput out)           Write object id as long, then the object UID.

 

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

 

Field Detail

serialVersionUID

static final long serialVersionUID

Use serial version uid for interoperability.

See Also:

Constant Field Values

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next

private static long next

The object counter, which value is assigned when creating the ordinary objects without the known object id. The counter is incremented each time the new ObjID is constructed.

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lock

private static final java.lang.Object lock

The object to put the lock on when incrementing next 55

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REGISTRY_ID

public static final int REGISTRY_ID

Defines the ID of the naming service.

See Also:

Constant Field Values

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ACTIVATOR_ID

public static final int ACTIVATOR_ID

Defines the ID of the activator.

See Also:

Constant Field Values

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DGC_ID

public static final int DGC_ID

Defines the ID of the distributed garbage collector.

See Also:

Constant Field Values

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objNum

long objNum

The object Id (either well-known value or the value of the incrementing object counter.

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space

UID space

The object unique identifier, generated individually for each object.

Constructor Detail

ObjID

public ObjID()

Create the new object id, unique for this host.

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ObjID

public ObjID(int id)

Create the new object id defining the well known remotely accessible object, present in this host. The well - known objects are:

• REGISTRY_ID 55 - RMI naming service.
• ACTIVATOR_ID 55 - activator
• DGC_ID 55 - distributed garbage collector (grants lease durations to keep the object before it is garbage collected.

Method Detail

write

public void write(java.io.ObjectOutput out)
           throws java.io.IOException

Write object id as long, then the object UID.

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read

public static ObjID read(java.io.ObjectInput in)
                  throws java.io.IOException

Read object id (as long), then the object UID.

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hashCode

public int hashCode()

Get the hashcode.

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equals

public boolean equals(java.lang.Object obj)

Compare for equality.

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eq

static final boolean eq(java.lang.Object a,
                        java.lang.Object b)

Compare by .equals if both a and b are not null, compare directly if at least one of them is null.

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toString

public java.lang.String toString()

Get the string representation.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> java >> rmi >> [ server overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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