Object-oriented locator system

• US 5,396,626 A
• Filed: 08/04/1993
• Issued: 03/07/1995
• Est. Priority Date: 08/04/1993
• Status: Expired due to Term

• Current Assignee: Apple Inc.
• Original Assignee: Taligent, Inc. (HP Inc.)
• Inventors: Nguyen, Frank T.
• Primary Examiner(s): Heckler, Thomas M.
• Assistant Examiner(s): BACKENSTOSE, JONATHAN
• Application Number:
  US08/102,078
• Time in Patent Office: 580 Days
• Field of Search: 395/650, 395/700, 364/DIG. 1, 364/DIG. 2, 364/280, 364/281.3, 364/284.3, 364/284, 364/284.4
• US Class Current: 717/171
• CPC Class Codes: G06F 9/44521 Dynamic linking or loading; Link editing at or after load time, e.g. Java class loading

Abstract

A method and system for adding components (documents, tools, fonts, libraries, etc.) to a computer system without running an installation program. A location framework is employed to locate components whose properties match those specified in a search criteria. The framework receives notification from the system when components whose properties match the search criteria are added to or removed from the system.

Claims

1. A method in a computer system comprised of a plurality of system entities including a memory and an object-oriented operating system resident in said memory, said object-oriented operating system augmented to accept a client initiated search, each entity, in turn, being comprised of a plurality of hardware or software components and each hardware or software component having predetermined properties, said method determining whether at least one component having properties supplied by a client exists in said computer system at any time while said client is active and supplying the client with the identity of said at least one component, comprising the steps of:

(a) receiving scope criteria from said client indicating a set of said plurality of system entities to be searched, said plurality of system entities comprising network entities, system entities, and application entities;

(b) receiving search criteria from said client indicating hardware or software component properties required by said client, and

(b1) receiving search criteria from said client indicating system component properties;

(c) utilizing said scope criteria and said search criteria to query said object-oriented operating system augmented to accept a client initiated search to identify one or more hardware or software components that satisfy said scope criteria and said search criteria indicating hardware or software component properties, and

(c1) using said scope criteria and said operating system to collect a set of system entities; and

(c2) examining each of said set of system entities collected in step (c1) to determine if any components having system component properties that satisfy said search criteria exist in said each system entity; and

(d) returning to said client identities of components identified in step (c) to enable said client to access one or more of said identified hardware or software components at any time while said client is active.

2. A method as recited in claim 1, wherein said components include network components, step (b) comprises the step of:

(b2) receiving search criteria from said client indicating network component properties; and

step (c) includes said step of;

(c5) using said scope criteria and said operating system to collect a set of system entities; and

(c6) examining each of said set of system entities collected in step (c5) to determine if any components having network component properties that satisfy said search criteria exist in said each system entity.

3. A method as recited in claim 1, wherein said components include application components, step (b) comprises the step of:

(b3) receiving search criteria from said client indicating application component properties;

and step (c) includes the step of;

(c7) using said scope criteria and said operating system to collect a set of system entities; and

(c8) examining each of said set of system entities collected in step (c7) to determine if any components having application component properties that satisfy said search criteria exist in said each system entity.

4. Apparatus operable in a computer system comprised of a plurality of system entities including a memory and an operating system resident in said memory, said operating system augmented to accept a client initiated search, each entity, in turn, being comprised of a plurality of hardware or software components and each hardware or software component having predetermined properties, said apparatus determining whether at least one hardware or software component having properties supplied by a client exists in said computer system at any time while said client is active, comprising:

(a) means for receiving scope criteria from said client indicating a set of said plurality of system entities to be searched, said plurality of system entities comprising network entities, system entities, and application entities;

(b) means for receiving search criteria from said client indicating hardware or software component properties required by said client, and

(b1) means for receiving search criteria from said client indicating system component properties;

(c) means responsive to said scope criteria and said search criteria for creating a locator object comprising a method for querying said object-oriented operating system augmented to accept a client initiated search to identify one or more hardware or software components that satisfy said search criteria;

(c1) means for using said scope criteria and said operating system to collect a set of system entities; and

(c2) means for examining each of said set of system entities collected by said means for using said scope criteria to determine if any components having system component properties that satisfy said search criteria exist in said each system entity; and

(d) means responsive to a location request received from said client for invoking said locator object to execute said method and retrieve component identities from said operating system augmented to accept a client initiated search; and

(e) means responsive to retrieved hardware or software component identities for returning to said client said retrieved identities to enable said client to access said one or more hardware or software components at any time while said client is active.

5. An apparatus as recited in claim 4 wherein said returning means comprises means for returning pointers to each component identified by said method to enable said client to access said one or more components.

6. An apparatus as recited in claim 4 further comprising:

means for creating a folder object comprising a plurality of components specified by said client;

means for receiving scope criteria from said client indicating a set of said plurality of system entities to be searched for each of said plurality of specified components in said folder object;

means for receiving search criteria from said client indicating component properties desired by said client for each of said plurality of specified components in said folder object; and

means responsive to said scope criteria and said search criteria received from said client for said each of said plurality of specified components in said folder object for creating a locator object associated with said folder object which locator object comprises a method for querying said operating system to identify one or more existing components that satisfy said search criteria for said each specified component.

20. An apparatus as recited in claim 4 further comprising:

means for receiving a notification request from said client and forwarding said request to said locator object; and

means in said locator object and responsive to said retrieved identities for forwarding a notification to said client when one or more components have been identified by said method.

21. An apparatus as recited in claim 20 wherein said notification forwarding means comprises means responsive to said retrieved identities for forwarding a notification to said client when one or more components identified by said method are added to said computer system.

22. An apparatus as recited in claim 20 wherein said notification forwarding means comprises means responsive to said retrieved identities for forwarding a notification to said client when one or more components identified by said method are removed from said computer system.

23. An apparatus as recited in claim 20 wherein said client is an application program and wherein means for forwarding a notification to said client comprises:

means for forwarding an update notification to said application program when one or more components identified by said method are updated, said update notification identifying said one or more updated components; and

means responsive to said notification for updating said application program.

24. An apparatus as recited in claim 23 further comprising:

means for creating a folder object comprising a plurality of components specified by said client;

means for receiving scope criteria from said client indicating a set of said plurality of system entities to be searched for each of said plurality of specified components in said folder object;

means for receiving search criteria from said client indicating component properties desired by said client for each of said plurality of specified components in said folder object; and

means responsive to said scope criteria and said search criteria received from said client for said each of said plurality of. Specified components in said folder object for creating a locator object associated with said folder object which locator object comprises a method for querying said operating system to identify one or more existing components that satisfy said search criteria for said each specified component.

7. A method operable in a computer system comprised of a plurality of system entities including a memory and an object-oriented operating system resident in said memory, said object-oriented operating system augmented to accept a client initiated search, each entity, in turn, being comprised of a plurality of hardware or software components and each hardware or software component having predetermined properties, said method determining whether at least one hardware or software component having properties supplied by a client exists in said computer system at any time while said client is active, comprising the steps of:

(a) receiving scope criteria from said client indicating a set of said plurality of system hardware or software entities to be searched, said plurality of system entities comprising network entities, system entities, and application entities;

(b) receiving search criteria from said client indicating hardware or software component properties required by said client, and

(b1) means for receiving search criteria from said client indicating system component properties;

(c) utilizing said scope criteria and said search criteria to create a locator object comprising a method for querying said object-oriented operating system augmented to accept a client initiated search to identify one or more hardware or software components that satisfy said scope criteria and said search criteria, and

(c1) means for using said scope criteria and said operating system to collect a set of system entities; and

(c2) means for examining each of said set of system entities collected by said means for using said scope criteria to determine if any components having system component properties that satisfy said search criteria exist in said each system entity; and

(d) invoking said locator object to execute said method and

(e) returning to said client said identities of hardware or software components identified by said method to enable said client to access said one or more hardware or software components at any time while said client is active.

8. A method as recited in claim 7 wherein step (e) comprises the step of:

(e1) returning pointers to each component identified by said method to enable said client to access said one or more components.

9. A method as recited in claim 7 further comprising the steps of:

(f) receiving a notification request from said client and forwarding said request to said locator object; and

(g) forwarding a notification to said client when one or more components have been identified by said method.

10. A method as recited in claim 9 wherein step (g) comprises the step of:

(g1) forwarding a notification to said client when one or more components identified by the method are removed from said computer system.

11. A method as recited in claim 9 wherein step (g) comprises the step of:

(g2) forwarding a notification to said client when one or more components identified by said method are added to said computer system.

12. A method as recited in claim 9 wherein said client is an application program and wherein step (g) comprises the steps of:

(g3) forwarding an update notification to said application program when one or more components identified by the method are updated, said update notification identifying said one or more updated components; and

(g4) updating said application program in response to said notification.

13. A method as recited in claim 9 further comprising the steps of:

(h) creating a folder object comprising a plurality of components specified by said client;

(i) receiving scope criteria from said client indicating a set of said plurality of system entities to be searched for each of said plurality of specified components in said folder object;

(j) receiving search criteria from said client indicating component properties desired by said client for each of said plurality of specified components in said folder object; and

(k) for each of said plurality of specified components in said folder object, using said scope criteria and said search criteria received from said client for said each specified component to create a locator object associated with said folder object which locator object comprises a method for querying said operating system to identify one or more existing components that satisfy said search criteria for said each specified component.

14. A method as recited in claim 13 further comprising the step of:

(l) forwarding a notification to said folder when at least one of said locator objects associated with said folder identifies a component that satisfies said search criteria of said at least one locator object; and

(m) forwarding a notification to said client when said folder object receives a notification from any of said associated locator objects.

15. An apparatus operable in a computer system comprised of a plurality of system entities including a memory and an object-oriented operating system resident in said memory, said object-oriented operating system augmented to accept a client initiated search, each entity, in turn, being comprised of a plurality of hardware or software components and each hardware or software component having predetermined properties, said apparatus determining whether at least one component having properties supplied by a client exists in said computer system at any time while said client is active and comprising:

(a) means for receiving scope criteria from said client indicating a set of said system entities to be searched, said plurality of system entities comprising network entities, system entities, and application entities;

(b) means for receiving search criteria from said client indicating hardware or software component properties required by said client, and

(b1) means for receiving search criteria from said client indicating system component properties;

(c) means responsive to said scope criteria and said search criteria for querying said object-oriented operating system augmented to accept a client initiated search to retrieve said identities of one or more hardware or software components that satisfy said scope criteria and said search criteria from said object-oriented operating system augmented to accept a client initiated search, and

(c1) means for using said scope criteria and said operating system to collect a set of system entities; and

(c2) means for examining each of said set of system entities collected by said means for using said scope criteria to determine if any components having system component properties that satisfy said search criteria exist in said each system entity; and

(d) means responsive to retrieved identities of one or more hardware or software components that satisfy said search criteria for returning to said client said retrieved identities to enable said client to access one or more of said identified hardware and software components at any time while said client is active.

16. An apparatus as recited in claim 15, wherein said querying means comprises:

means responsive to said scope criteria and cooperating with said operating system for collecting a set of system entities; and

means responsive to a collection of system entities for determining if any components having component properties that satisfy said search criteria exist in said each system entity.

17. An apparatus as recited in claim 15, wherein said components include system components and wherein said scope criteria receiving means comprises means for receiving search criteria from said client indicating system component properties and said querying means comprises:

means responsive to said scope criteria and cooperating with said operating system for collecting a set of system entities; and

means responsive to a collected set of system entities for examining each of said collected set to determine if any components having system component properties that satisfy said search criteria exist in said each system entity.

18. An apparatus as recited in claim 15, wherein said components include network components and wherein said scope criteria receiving means comprises means for receiving search criteria from said client indicating network component properties and said querying means comprises:

means responsive to said scope criteria and cooperating with said operating system for collecting a set of system entities; and

means responsive to a collected set of system entities for examining each of said collected set to determine if any components having network component properties that satisfy said search criteria exist in said each system entity.

19. An apparatus as recited in claim 15, wherein said components include application components and wherein said scope criteria receiving means comprises means for receiving search criteria from said client indicating application component properties and said querying means comprises:

means responsive to said scope criteria and cooperating with said operating system for collecting a set of system entities; and

means responsive to a collected set of system entities for examining each of said collected set to determine if any components having application component properties that satisfy said search criteria exist in said each system entity.