Sharing variables defined in package specification of a library,
between Multiple Forms (Forms 6i)...
Variables defined in a database package specification are accessible to all forms being called in that session. So to say, the values set for these variables in one form can be accessed in another form. Sharable Packages can be created in the front-end also as part of a library. Is it possible to share values assigned to a front-end package specification variable in a library between multiple forms? This solution could be a break through in the way we share data between forms, without the help of database.
E.g.: Library 'libstd' is attached to both form A and form B. Package 'string_operation' is part of the library. Variable p_substr is a specification variable in this package. Form A assigns the string "bingo" to this variable. Form B is then called from form A. Is it possible for form B to refer to the value assigned to the variable p_substr? Now if form B assigns some value to the same variable, can Form A refer it?
Use the data mode option share_library_data while invoking another form. 1. This option will work in the same session only. 2. Works with call_form, open_form (session level) and new_form (slightly buggy, first call between the two forms doesn't share the library data).
E.g.: fp_string_operations.p_substr := :block2.value1; --assigning value to a library package spec variable. call_form('share_data_b',hide,no_replace,no_query_only,share_library_data);Both package specification variables and global variables have the same functionality, but the later encounters more maintenance over head. Some common differences:
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