org.objectweb.carol.cmi

Class ObjectId

java.lang.Object

org.objectweb.carol.cmi.ObjectId

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Comparable

public class ObjectId
extends java.lang.Object
implements java.io.Externalizable, java.lang.Comparable

Each clustered remote object is uniquely identified by such a number. Two distinct clustered remote object do not have the same ObjectId.

Author:

Simon Nieuviarts

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ObjectId() Default constructor
ObjectId(ClusterId serverId, ClusterId objId) Creates a new identifier

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(java.lang.Object o) Compare two ObjectIds
boolean	equals(java.lang.Object o) Test if two ObjectIds are equals
ClusterId	getServerId() Get the ServerId associated with the current object
int	hashCode() Compute hashcode
static void	main(java.lang.String[] args) Useful for tests only.
static ObjectId	read(java.io.DataInput in) Read an ObjectId from the input stream
void	readExternal(java.io.ObjectInput in)
java.lang.String	toString()
void	write(java.io.DataOutput out) Write an ObjectId on the ouput stream
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectId

public ObjectId()

Default constructor

ObjectId

public ObjectId(ClusterId serverId,
        ClusterId objId)

Creates a new identifier

Parameters:

serverId - server id

objId - object id

Method Detail

hashCode

public int hashCode()

Compute hashcode

Overrides:

hashCode in class java.lang.Object

Returns:

hashcode

equals

public boolean equals(java.lang.Object o)

Test if two ObjectIds are equals

Overrides:

equals in class java.lang.Object

Parameters:

o - object to compare with this

Returns:

true if equals

compareTo

public int compareTo(java.lang.Object o)

Compare two ObjectIds

Specified by:

compareTo in interface java.lang.Comparable

Parameters:

o - object to compare with this

Returns:

true if equals

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Throws:

java.io.IOException

java.lang.ClassNotFoundException

See Also:

Externalizable.readExternal(java.io.ObjectInput)

writeExternal

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

Specified by:

writeExternal in interface java.io.Externalizable

Throws:

java.io.IOException

See Also:

Externalizable.writeExternal(java.io.ObjectOutput)

read

public static ObjectId read(java.io.DataInput in)
                     throws java.io.IOException

Read an ObjectId from the input stream

Parameters:

in - input

Returns:

ObjectId

Throws:

java.io.IOException - if an I/O error occurs

write

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

Write an ObjectId on the ouput stream

Parameters:

out - output

Throws:

java.io.IOException - if an I/O error occurs

getServerId

public ClusterId getServerId()

Get the ServerId associated with the current object

Returns:

ClusterId

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

See Also:

Object.toString()

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Useful for tests only.

Throws:

java.lang.Exception - Exception