Method, software and device for effecting independently refreshable, markup language-based database queries and user interface screens

1. A machine-readable medium comprising:

code for defining a database query based on at least one markup language element representing said database query, said code including instructions for causing said database query to be performed and instructions for storing a result of said database query;

code for displaying a user interface screen having a display element that is based at least in part upon said result of said database query, said user interface screen being based on at least one markup language element representing said user interface screen;

code for refreshing said user interface screen based on a markup language element representing said refreshing of said user interface screen that is distinct from and references said markup language element representing said user interface screen; and

code for refreshing said database query based on a markup language element representing said refreshing of said database query that is distinct from and references said markup language element representing said database query,

wherein said code for refreshing said user interface screen and said code for refreshing said database query are each independently executable based upon a user specification of a respective one of said markup language element representing said refreshing of said user interface screen and said markup language element representing said refreshing of said database query.

2. The machine-readable medium of claim 1 wherein said code for refreshing said user interface screen and said code for refreshing said database query are object-oriented and wherein said independently executable code comprises independently instantiatable code.

3. The machine-readable medium of claim 2 wherein both of said object-oriented code for refreshing said database query and said object-oriented code for refreshing said user interface screen are defined within a single object-oriented class.

4. The machine-readable medium of claim 3 wherein said instantiation of said object-oriented code for refreshing said user interface screen comprises instantiating a first instance of said object-oriented class and setting data members of said first instance based on attributes of the markup language element representing said refreshing of said user interface screen, and wherein said instantiation of said object-oriented code for refreshing said database query comprises instantiating a second instance of said object-oriented class and setting said data members of said second instance based on attributes of the markup language element representing said refreshing of said database query.

5. The machine-readable medium of claim 2 wherein said object-oriented code for refreshing said database query is defined within a first object-oriented class and said object-oriented code for refreshing said user interface screen is defined within a second object-oriented class.

6. The machine-readable medium of claim 5 wherein said instantiation of said object-oriented code for refreshing said user interface screen comprises instantiating an instance of said first object-oriented class and setting data members of said instance based on attributes of the markup language element representing said refreshing of said user interface screen, and wherein said instantiation of said object-oriented code for refreshing said database query comprises instantiating an instance of said second object-oriented class and setting data members of said instance of said second object-oriented class based on attributes of the markup language element representing said refreshing of said database query.

7. The machine-readable medium of claim 1 wherein said markup language element representing said refreshing of said user interface screen and said markup language element representing said refreshing of said database query are both instances of the same markup language element, each instance having at least one attribute whose value differs from a value of a corresponding attribute of the other instance.

8. A wireless communication device comprising:

a processor; and

a memory coupled to said at least one processor, storing:

code for defining a database query based on at least one markup language element representing said database query, said code including instructions for causing said database query to be performed and instructions for storing a result of said database query;

code for displaying a user interface screen having a display element that is based at least in part upon said result of said database query, said user interface screen being based on at least one markup language element representing said user interface screen;

code for refreshing said user interface screen based on a markup language element representing said refreshing of said user interface screen that is distinct from and references said markup language element representing said UI screen; and

code for refreshing said database query based on a markup language element representing said refreshing of said database query that is distinct from and references said markup language element representing said UI screen,

wherein said code for refreshing said user interface screen and said code for refreshing said database query are each independently executable based upon a user specification of a respective one of said markup language element representing said refreshing of said user interface screen and said markup language element representing said refreshing of said database query.

9. The device of claim 8 wherein said code for refreshing said user interface screen and said code for refreshing said database query are object-oriented and wherein said independently executable code comprises independently instantiatable code.

10. The device of claim 9 wherein both of said object-oriented code for refreshing said database query and said object-oriented code for refreshing said user interface screen are defined within a single object-oriented class.

11. The device of claim 10 wherein said instantiation of said object-oriented code for refreshing said user interface screen comprises instantiating a first instance of said object-oriented class and setting data members of said first instance based on attributes of the markup language element representing said refreshing of said user interface screen, and wherein said instantiation of said object-oriented code for refreshing said database query comprises instantiating a second instance of said object-oriented class and setting said data members of said second instance based on attributes of the markup language element representing said refreshing of said database query.

12. The device of claim 9 wherein said object-oriented code for refreshing said database query is defined within a first object-oriented class and said object-oriented code for refreshing said user interface screen is defined within a second object-oriented class.

13. The device of claim 12 wherein said instantiation of said object-oriented code for refreshing said user interface screen comprises instantiating an instance of said first object-oriented class and setting data members of said instance based on attributes of the markup language element representing said refreshing of said user interface screen, and wherein said instantiation of said object-oriented code for refreshing said database query comprises instantiating an instance of said second object-oriented class and setting data members of said instance of said second object-oriented class based on attributes of the markup language element representing said refreshing of said database query.

14. The device of claim 8 wherein said markup language element representing said refreshing of said user interface screen and said markup language element representing said refreshing of said database query are both instances of the same markup language element, each instance having at least one attribute whose value differs from a value of a corresponding attribute of the other instance.

15. A method of effecting independently refreshable, markup language-based database queries and user interface screens, comprising:

at a wireless communication device having a processor and a memory coupled to said at least one processor, the memory storing code that, upon execution by said processor, causes said device to:

define a database query based on at least one markup language element representing said database query, cause said database query to be performed and store a result of said database query;

display a user interface screen having a display element that is based at least in part upon said result of said database query, said user interface screen being based on at least one markup language element representing said user interface screen;

refresh said user interface screen based on a markup language element representing said refreshing of said user interface screen that is distinct from and references said markup language element representing said user interface screen; and

refresh said database query based on a markup language element representing said refreshing of said database query that is distinct from and references said markup language element representing said database query,

executing each of said refreshing of said user interface screen and said refreshing of said database query independently of the other based upon a user specification of said markup language element representing said refreshing of said user interface screen and said markup language element representing said refreshing of said database query respectively.