Retrieving an object

• US 8,707,325 B2
• Filed: 10/01/2008
• Issued: 04/22/2014
• Est. Priority Date: 10/01/2008
• Status: Expired due to Fees

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Seyvet, Nicolas
• Primary Examiner(s): Truong, Lechi
• Application Number:
  US13/063,053
• Publication Number:
  US 20110191791A1
• Time in Patent Office: 2,029 Days
• Field of Search: 719/310, 709/217
• US Class Current: 719/310
• CPC Class Codes: G06F 2209/462 Lookup
• CPC Class Codes: G06F 2209/463 Naming
• CPC Class Codes: G06F 9/465 Distributed object oriented systems remote method invocation [RMI] G06F9/548

Abstract

A method of locating an object across a network comprises locating the copy of object that is the best copy available through either JNDI object location and webservice location. The method initially comprises attempting to locate a local copy of the object (step 8). If a local copy of the object is not located, the method then attempts (step 10) to locate a remote copy of the object. If a remote copy of the object is not located, the method then attempts (step 12) to locate a remote web service object.

Claims

1. A method of locating, in response to an object request, a copy of an object that is a best copy available, the method comprising:

checking whether an optimization flag has been set;

if the optimization flag has been set, performing the following acts (1)-(3) in order;

(1) attempting to locate a local copy of the object; and

if the local copy of the object is located, retrieving the local copy;

but if (1) fails to locate the local copy, then

(2) attempting to locate a remote copy of the object; and

if the remote copy of the object is located, retrieving the remote copy of the object;

but if (2) fails to locate the remote copy of the object, then

(3) attempting to locate a remote web service object;

if the optimization flag has not been set, performing act (3) without performing act (1) and act (2);

wherein at least one of (1) and (2) comprises carrying out a Java Naming and Directory Interface (JNDI) search for the copy of the object.

2. The method as claimed in claim 1, further comprising for both (1) and (2):

carrying out the Java Naming and Directory Interface (JNDI) search for the copy of the object;

if the JNDI search locates the copy of the object, retrieving the copy located by the JNDI search.

3. The method as claimed in claim 1, further comprising, if a remote web service object is located, retrieving the copy of the remote web service object located.

4. The method as claimed in claim 1, further comprising prior to (1) attempting to locate the copy of the object in a cache.

5. The method as claimed in claim 1, further comprising caching a retrieved object.

6. The method as claimed in claim 1, wherein (1) further comprises attempting to locate the local copy of the object using Java Virutal Machine.

7. The method as claimed in claim 1, further comprising, in order to perform act (1):

creating or retrieving an initial context or a link to the initial context;

creating a local object reference.

8. A network node for locating a copy of an object across a network, the node comprising a processor which is adapted to locate the copy of object that is a best copy available by:

checking whether an optimization flag has been set;

if the optimization flag has been set, performing the following acts (1)-(3) in order;

(1) attempting to locate a local copy of the object; and

if the local copy of the object is located, retrieving the local copy;

but if (1) fails to locate the local copy, then

(2) attempting to locate a remote copy of the object; and

if the remote copy of the object is located, retrieving the remote copy of the object;

but if (2) fails to locate the remote copy of the object, then

(3) attempting to locate a remote web service object;

if the optimization flag has not been set, performing act (3) without performing act (1) and act (2);

wherein at least one of (1) and (2) comprises carrying out a Java Naming and Directory Interface (JNDI) search for the copy of the object.

9. The network node as claimed in claim 8, wherein the processor is further adapted, for both (1) and (2), to:

carry out the Java Naming and Directory Interface (JNDI) search for the object;

if the JNDI search locates the copy of the object, retrieve the copy located by the JNDI search.

10. The node as claimed in claim 8, wherein (1) further comprises attempting to locate the local copy of the object using Java Virutal Machine.

11. The node as claimed in claim 8, further comprising, in order to perform act (1):

creating or retrieving an initial context or a link to the initial context;

creating a local object reference.

12. A computer-readable non-transitory medium comprising instructions that, when executed on a processor, perform a method of locating an object across a network, the method comprising:

checking whether an optimization flag has been set;

if the optimization flag has been set, performing the following acts (1)(3) in order;

(1) attempting to locate a local copy of the object; and

if the local copy of the object is located, retrieving the local copy;

but if (1) fails to locate the local copy, then

(2) attempting to locate a remote copy of the object; and

if the remote copy of the object is located, retrieving the remote copy of the object;

but if (2) fails to locate the remote copy of the object, then

(3) attempting to locate a remote web service object;

if the optimization flag has not been set, performing act (3) without performing act (1) and act (2);

wherein at least one of (1) and (2) comprises carrying out a Java Naming and Directory Interface (JNDI) search for the copy of the object.

13. The computer-readable medium as claimed in claim 12, the method further comprising, for both (1) and (2):

carrying out the Java Naming and Directory Interface (JNDI) search for the object;

if the JNDI search locates the copy of the object, retrieving the copy located by the JNDI search.