Initializing virtual machine that subsequently executes application

• US 7,568,196 B2
• Filed: 06/03/2002
• Issued: 07/28/2009
• Est. Priority Date: 06/11/2001
• Status: Active Grant

• Current Assignee: SAP SE
• Original Assignee: SAP AG (SAP SE)
• Inventors: Krebs, Andreas
• Primary Examiner(s): Nguyen; Van H
• Assistant Examiner(s): ARCOS, CAROLINE H
• Application Number:
  US10/480,379
• Publication Number:
  US 20040236715A1
• Time in Patent Office: 2,612 Days
• Field of Search: 718/1, 718/100, 718/102, 718/104, 717/101, 717/118, 717/125, 717/143, 715/237, 715/273, 715/264, 707/100
• US Class Current: 718/100
• CPC Class Codes: G06F 9/445 Program loading or initiating bootstrapping G06F9/4401; security arrangements for program loading or initiating G06F21/57
• CPC Class Codes: G06F 9/454 Multi-language systems; Localisation; Internationalisation

Abstract

A method and a system for selecting a desired language for text displays in a Java-Type language is provided. A localization class in the loadable Java program defines the text portions of the displays. At start of the application, the Java virtual machine loads this class and a determination is made, by user input or otherwise, of which of a group of languages available should be used for the text. Based on the determination, the static initializer Java-type code is invoked, and it loads the appropriate language text from a markup language document, preferably an XML document. The appropriate text segments from the markup language document are then used to initialize the variables. The application then can proceed to run as usual. Preferably, after the static initialization, the fields of the localization class are checked to confirm that all fields contain text.

Claims

1. A computer-readable medium comprising instructions, which, when executed by a processor, cause the processor to perform a method of initializing a virtual machine for rendering an object on a computer display, the method comprising:

providing an application;

receiving a property value corresponding to an application format;

identifying a plurality of variables from a byte-code of the application;

reading a plurality of object representations for at least some of the plurality of variables from a markup language document;

selecting an object representation from the markup language document according to the application format specified in the property value, wherein the object representation is selected from the plurality of object representations with same meanings and different formats; and

assigning the object representation from the markup language document to a variable in the application by assigning the object representation in the markup language document to the variable in the application;

re-initializing the virtual machine upon a modification of the markup language document, the re-initializing comprising;

identifying a new object representation from the modified markup language document according to the application format specified in the property value;

identifying the variable for the new object representation by parsing the application; and

re-initializing the variable based on the new object representation.

2. The computer-readable medium of claim 1, wherein the object representation comprises a pointer to a file.

3. The computer-readable medium of claim 1, the method further comprising receiving the markup language document via the Internet.

4. The computer-readable medium of claim 1, wherein the providing further comprises identifying a further variable that has already been initiated and wherein the selecting further comprises reading a representation for the further variable from the markup language document.

5. The computer-readable medium of claim 1, the method further comprising performing re-initialization while the virtual machine executes the application.

10. The computer-readable medium of claim 1, wherein the application format comprises a natural language.

6. A method for initializing a virtual machine (VM) for rendering an object on a display of a computer, the method comprising:

providing an application;

receiving a property value corresponding to an application format;

identifying a plurality of variables from a byte-code of the application;

reading a plurality of object representations for at least some of the plurality of variables from a markup language document;

selecting an object representation from the markup language document according to the application format specified in the property value, wherein the object representation is selected from the plurality of object representations with same meanings and different formats; and

assigning the object representation from the markup language document to a variable in the application by assigning the object representation in the markup language document to the variable in the application;

re-initializing the virtual machine upon a modification of the markup language document, the re-initializing comprising;

identifying a new object representation from the modified markup language document according to the application format specified in the property value;

identifying the variable for the new object representation by parsing the application; and

re-initializing the variable based on the new object representation.

7. The method of claim 6, wherein the providing an application further comprises identifying a further variable that has already been initiated and wherein reading further comprises reading a representation for the further variable from the markup language document.

11. The method of claim 6, wherein the application format comprises a natural language.

8. A computer system that initializes a virtual machine (VM) for rendering an object on a display of a computer, the computer system comprising:

a processor;

a computer memory device configured to store an application;

a property value selector configured to receive a property value corresponding to an application format;

a reader executing on the processor, the reader configured to;

identify a plurality of variables from a byte-code of the application,

read a plurality of object representations for at least some of the plurality of variables from a markup language document,

select an object representation from the markup language document according to the application format specified in the property value, wherein the object representation is selected from the plurality of object representations with same meanings and different formats, and

assign the object representation from the markup language document to a variable in the application, by assigning the object representation in the markup language document to the variable in the application; and

means for re-initializing the virtual machine upon a modification of the markup language document the means for re-initializing further comprising;

means for identifying a new object representation from the modified markup language document according to the application format specified in the property value;

means for identifying the variable for the new object representation by parsing the application; and

means for re-initializing the variable based on the new object representation.

9. The computer system of claim 8, wherein the reader is further configured to:

identify a further variable that has already been initiated, and

read a representation for the further variable from the markup language document.

12. The computer system of claim 8, wherein the application format comprises a natural language.