Information processing apparatus and method

Abstract

In an information processing apparatus, a program processing unit executes a program described as an object-oriented language executed by a platform-independent machine language. A monitor unit monitors a change of a network address of the information processing apparatus. A reference provision unit provides a new network address of the information processing apparatus for another information processing apparatus when said monitor unit detects the change of the network address of the information processing apparatus.

1 - 19 . (canceled) 
   
   
       20 . An information processing apparatus as a first computer in a system including a plurality of computers each connected to a network, a second computer executing a directory service program, the directory service program including a remote reference representing a network address of each of the plurality of computers, comprising:
 a program processing unit configured to execute a server program described as an object-oriented language executed by a platform-independent machine language, a third computer referring to the remote reference in the second computer through the network to access an execution result of the server program;   a monitor unit configured to monitor a change of a network address of the first computer while the server program is operating;   a network address acquisition unit configured to acquire a new network address of the first computer when said monitor unit detects the change of the network address of the first computer; and   a remote reference control unit configured to update the network address of the remote reference in the second computer by using the new network address.   
   
   
       21 . The information processing apparatus according to  claim 20 ,
 wherein said remote reference control unit creates a remote reference of the first computer when the server program is generated in the first computer, the remote reference including the network address and a port number of the first computer.   
   
   
       22 . The information processing apparatus according to  claim 21 ,
 wherein said remote reference control unit registers the remote reference in the directory service program of the second computer.   
   
   
       23 . The information processing apparatus according to  claim 22 ,
 wherein said monitor unit verifies whether the network address of the first computer is changed by referring to an OS of the first computer; and   wherein said network address acquisition unit acquires the new network address of the first computer from the OS when said monitor unit verifies that the network address of the first computer is changed.   
   
   
       24 . The information processing apparatus according to  claim 22 ,
 wherein the first computer is a service terminal executing the server program to provide a service in response to a request from the third computer as a client's terminal.   
   
   
       25 . An information processing method of a first computer in a system including a plurality of computers each connected to a network, a second computer executing a directory service program, the directory service program including a remote reference representing a network address of each of the plurality of computers, comprising:
 executing a server program described as an object-oriented language executed by a platform-independent machine language, a third computer referring to the remote reference in the second computer through the network to access an execution result of the server program;   monitoring a change of a network address of the first computer while the server program is operating;   acquiring a new network address of the first computer when the change of the network address of the first computer is detected; and   updating the network address of the remote reference in the second computer by using the new network address.   
   
   
       26 . The information processing method according to  claim 25 ,
 further comprising:   creating a remote reference of the first computer when the server program is generated in the first computer, the remote reference including the network address and a port number of the first computer.   
   
   
       27 . The information processing method according to  claim 26 ,
 further comprising:   registering the remote reference in the directory service program of the second computer.   
   
   
       28 . The information processing method according to  claim 27 ,
 further comprising:   verifying whether the network address of the first computer is changed by referring to an OS of the first computer; and   acquiring the new network address of the first computer from the OS when the network address of the first computer is verified to be changed.   
   
   
       29 . The information processing method according to  claim 27 ,
 wherein the first computer is a service terminal executing the server program to provide a service in response to a request from the third computer as a client's terminal.   
   
   
       30 . A computer program product, comprising:
 a computer readable program code embodied in said product for causing a first computer in a system including a plurality of computers each connected to a network, a second computer executing a directory service program, the directory service program including a remote reference representing a network address of each of the plurality of computers, said computer readable program code having:   a first program code to execute a server program described as an object-oriented language executed by a platform-independent machine language, a third computer referring to the remote reference in the second computer through the network to access an execution result of the server program;   a second program code to monitor a change of a network address of the first computer while the server program is operating;   a third program code to acquire a new network address of the first computer when the change of the network address of the first computer is detected; and   a fourth program code to update the network address of the remote reference in the second computer by using the new network address.