Methods and systems for generating a dynamic workflow in a multi-tenant database environment

• US 8,863,119 B2
• Filed: 05/26/2011
• Issued: 10/14/2014
• Est. Priority Date: 05/27/2010
• Status: Active Grant

• Current Assignee: Salesforce.com, Inc.
• Original Assignee: Salesforce.com, Inc.
• Inventors: Wood, Stephen, Bailey, Samuel William, Lucas, Matthew
• Primary Examiner(s): Tang, Kenneth
• Application Number:
  US13/116,657
• Publication Number:
  US 20110296413A1
• Time in Patent Office: 1,237 Days
• Field of Search: None
• US Class Current: 718/1
• CPC Class Codes: G06F 16/113 Details of archiving lifecycle management in storage systems G06F3/0649; backup systems G06F11/1446
• CPC Class Codes: G06F 16/24575 using context
• CPC Class Codes: G06F 2009/45575 Starting, stopping, suspending or resuming virtual machine instances
• CPC Class Codes: G06F 2009/45583 Memory management, e.g. access or allocation
• CPC Class Codes: G06F 8/656 while running
• CPC Class Codes: G06F 9/45504 Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
• CPC Class Codes: G06F 9/45508 Runtime interpretation or emulation, e g. emulator loops, bytecode interpretation
• CPC Class Codes: G06F 9/45533 Hypervisors; Virtual machine monitors
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects
• CPC Class Codes: H04L 63/102 Entity profiles
• CPC Class Codes: H04L 63/104 Grouping of entities

Abstract

Techniques and systems for modifying a virtual machine functionality. Archive files each including at least a class files are received. The archive files are stored within the virtual machine. The virtual machine runs on a host system and neither the virtual machine nor the host system are restarted in response to the receiving or storing of the archive files. Files of the host system are scanned to find class files that are not included in a class path for the virtual machine. The class files are copied to a class path for the virtual machine. Neither the virtual machine nor the host system are restarted in response to the copying of the class files. The classes corresponding to the class files are registered in the virtual machine in response to the copying of the class files to the class path. Neither the virtual machine nor the host system are restarted in response to the registration of the classes.

Claims

1. A method of modifying a virtual machine functionality, the method comprising:

receiving one or more archive files each including at least a class file;

storing the one or more archive files within the virtual machine, wherein the virtual machine runs on a host system and neither the virtual machine nor the host system are restarted in response to the receiving or storing of the one or more archive files;

scanning files of the host system to find one or more class files that are not included in a class path for the virtual machine;

copying the one or more class files to a class path for the virtual machine, wherein neither the virtual machine nor the host system are restarted in response to the copying of the one or more class files; and

registering one or more classes corresponding to the one or more class files in the virtual machine in response to the copying of the one or more class files to the class path, wherein neither the virtual machine nor the host system are restarted in response to the registration of the one or more classes.

2. The method of claim 1 wherein the file includes bytecode to provide the functionality.

3. The method of claim 1 wherein the multitenant environment comprises a multitenant database environment, wherein the multitenant database environment stores data for multiple client entities each identified by a tenant identifier (ID) having one of one or more users associated with the tenant ID, wherein users of each of multiple client entities can only access data identified by a tenant ID associated with the respective client entity, and wherein the multitenant database is a hosted database provided by an entity separate from the client entities, and provides on-demand database service to the client entities.

4. The method of claim 3 further comprising assigning the one or more classes to at least one tenant in the multitenant database environment.

5. The method of claim 1 wherein the one or more archive files comprise bytecode files.

6. The method of claim 1 wherein the scanning the one or more archive files of the host system is triggered by a call to a component type that is not registered.

7. The method of claim 1 wherein the scanning the one or more archive files of the host system is triggered by a refresh request.

8. An article of manufacture comprising a computer-readable medium having stored thereon instructions, that when executed, cause one or more processors to modify a virtual machine functionality, the one or more processors to:

receive one or more archive files each including at least a class file;

store the one or more archive files within the virtual machine, wherein the virtual machine runs on a host system and neither the virtual machine nor the host system are restarted in response to the receiving or storing of the one or more archive files;

scan files of the host system to find one or more class files that are not included in a class path for the virtual machine;

copy the one or more class files to a class path for the virtual machine, wherein neither the virtual machine nor the host system are restarted in response to the copying of the one or more class files; and

register one or more classes corresponding to the one or more class files in the virtual machine in response to the copying of the one or more class files to the class path, wherein neither the virtual machine nor the host system are restarted in response to the registration of the one or more classes.

9. The article of claim 8 wherein the file includes bytecode to provide the functionality.

10. The article of claim 9 wherein the multitenant environment comprises a multitenant database environment, wherein the multitenant database environment stores data for multiple client entities each identified by a tenant identifier (ID) having one of one or more users associated with the tenant ID, wherein users of each of multiple client entities can only access data identified by a tenant ID associated with the respective client entity, and wherein the multitenant database is a hosted database provided by an entity separate from the client entities, and provides on-demand database service to the client entities.

11. The article of claim 10 further comprising instructions that, when executed, cause the one or more processors to assign the one or more classes to at least one tenant in the multitenant database environment.

12. The article of claim 8 wherein the one or more archive files comprise bytecode files.

13. The article of claim 8 wherein the scanning the one or more archive files of the host system is triggered by a call to a component type that is not registered.

14. The article of claim 8 wherein the scanning the one or more archive files of the host system is triggered by a refresh request.