System, method and article of manufacture for creating an object oriented component having multiple bidirectional ports for use in association with a java application or applet

• US 6,557,164 B1
• Filed: 01/13/1999
• Issued: 04/29/2003
• Est. Priority Date: 01/31/1997
• Status: Expired due to Term

• Current Assignee: Oracle America, Inc. (Oracle Corporation)
• Original Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Inventors: Faustini, Antony Azio
• Primary Examiner(s): DAM, TUAN QUANG
• Application Number:
  US09/229,769
• Time in Patent Office: 1,567 Days
• Field of Search: 717/104, 717/105, 717/107, 717/108, 717/109, 717/110, 717/111, 717/116, 345/762, 345/763, 709/315, 709/316, 709/313
• US Class Current: 717/107
• CPC Class Codes: G06F 8/24 Object-oriented
• CPC Class Codes: G06F 8/34 Graphical or visual programming

Abstract

Method, system and article of manufacture for creating an object oriented component having multiple bidirectional ports for use with an object oriented based applet or application. The component'"'"'s ports are all first initialized to a predetermined value and thereafter polled to determine if an input has been coupled to any one of the ports. If it has not, polling continues. If an input is present, all of the component'"'"'s remaining ports are set to output the same type and value as that of the input. Where appropriate, a check is made to determine if a saved state of the component exists, if it does, the component is initialized to the state type and value rather than the predetermined type and value. When the input is removed, the component ports are all reinitialized to the predetermined type and value and polling for a new input commences.

Claims

1. A method of creating an object oriented component having multiple bidirectional ports, the component being used in association with an object oriented applet or application, comprising the steps of:

a) initializing the component ports to a predetermined type and value;

b) polling the ports to ascertain whether an input has been connected to one of the ports; and

c) identifying the type and value of the input once it is coupled to a port.

2. The method according to claim 1 which comprises the additional steps of checking to see if the component has a previously saved state prior to the initializing step and initializing its ports to the state type and value rather than the predetermined type and value if it does.

3. The method according to claim 2 which comprises the additional steps of determining if the input type and value has been removed and reinitializing all of the ports of the component to the predetermined type and value if it has.

4. The method according to claim 3 which comprises the additional steps of determining if the input type and value has been removed and maintaining the other ports at the same type and value as that of the input if it has not.

5. The method according to claim 1 which comprises the additional steps of determining if the input type and value has been removed and reinitializing all of the ports of the component to the predetermined type and value if it has.

6. The method according to claim 5 which comprises the additional steps of determining if the type and input value has been removed and maintaining the other ports at the same type and value as that of the input if it has not.

7. The method according to claim 1 which comprises the additional steps of determining if the type and input value has been removed and maintaining the other ports at the same type and value as that of the input if it has not.

8. A system for creating an object oriented component having multiple bidirectional ports, the component being used in association with an object oriented applet or application said system comprising:

a) an initializer that sets the component'"'"'s ports to a predetermined type and value;

b) a poller that continuously checks the ports to ascertain whether an input has been connected to one of the ports; and

c) an identifier that establishes and saves the type and value of the input once it is coupled to a port.

9. The system according to claim 8 which additionally comprises a verifier that checks to see if the component has a previously saved state prior to its being initialized and what the state type and value is if a saved state is found and a second initializer to set the components ports to the state type and value rather than the predetermined type and value if a saved state is found.

10. The system according to claim 9 which additionally comprises a second poller that determines if the input has been removed and requests the initializer to reinitialize all of the ports of the component to the predetermined type and value if it has.

11. The system according to claim 10 which additionally comprises a second poller that determines if the input has been removed and requests the initializer to reinitialize all of the, ports of the component to the predetermined type and value if it has not.

12. The system according to claim 8 which additionally comprises a second poller that determines if the input has been removed and requests the initializer to reinitialize all of the ports of the component to the predetermined type and value if it has.

13. The system according to claim 12 which additionally comprises a second poller that determines if the input has been removed and requests the initializer to reinitialize all of the ports of the component to the predetermined type and value if it has not.

14. The system according to claim 8 which additionally comprises a second poller that determines if the input has been removed and requests the initializer to reinitialize all of the ports of the component to the predetermined type and value if it has not.

15. A computer program embodied on a computer-readable medium for creating an object oriented component having multiple bidirectional ports, the component being used in association with an object oriented applet or application, said embodied program comprising:

a) first software that initializes the component ports to a predetermined type and value;

b) second software that polls the ports to ascertain whether an input has been connected to one of the ports; and

c) third software that identifies the type and value of the input once it is coupled to a port.

16. The computer program embodied on a computer-readable medium as recited in claim 15 which additionally comprises fourth software for checking to see if the component has a previously saved state prior to its being initialized, means for determining what the state type and value is and means for initializing the components ports to the state type and value rather than the predetermined type and value if it does.

17. The computer program embodied on a computer-readable medium as recited in claim 16 which additionally comprises fifth software for determining if the input type and value has been removed and reinitializing all of the ports of the component to the predetermined type and value if it has.

18. The computer program embodied on a computer-readable medium ask recited in claim 17 which additionally comprises six software for determining if the input type and value has been removed and maintaining the other ports at the same type and value as that of the input if it has not.

19. The computer program embodied on a computer-readable medium as recited in claim 15 which additionally comprises fourth software for determining if the input type and value has been removed and reinitializing all of the ports of the component to the predetermined type and value if it has.

20. The computer program embodied on a computer-readable medium as recited in claim 19 which additionally comprises fifth software for determining if the input type and value has been removed and maintaining the other ports at the same type and value as that of the input if it has not.