| Error handling and display API packages

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This topic presents an overview of the routines in the wwerr_api_error and wwerr_api_error_ui API packages. These API packages contain all the routines necessary to perform the following operations: Use error handling methods add, retrieve, and clear errors from an error stack, and to do related operations. Use error display methods to support a standardized UI for presenting errors contained in the error stack.
Error handling API (wwerr_api_error) topic names and descriptions
Error handling and display methods | Presents introductory information for error and error UI API packages.
Error handling constants | Presents the constants that can be used by the error handling API methods.
Error_record record structure and table | Presents the error record structure.
add procedure (domain, subdomain, name, context) | Adds an error to the error stack.
add procedure (domain, id, context) | Adds an error to the error stack.
clear procedure | Clears the error stack.
is_empty function | Determines if the error stack is empty.
get_top function | Returns the uppermost entry of the error stack.
get_errors function | Returns a list of the entries in the error stack.
get_text_stack function | Reports the current error stack as varchar2.
get_count function | Reports the number of entries in the error stack.
Error display API (wwerr_api_error_ui) topic names and descriptions
Content type constants | Presents the constants that can be used by the error display API methods.
show procedure | Displays the error stack in the output format requested.
show_html procedure | Displays the error stack in full screen HTML format
show_inline_html procedure | Displays the error stack in inline HTML format.
get_inline_html function | Returns the error stack in HTML format.
show_xml procedure | Displays the error stack in XML format.
show_text procedure | Displays the error stack in text format.
show_inline_text procedure | Displays the error stack in inline text format.
get_text_errors function | Reports the current error stack as varchar2.
show_error_page procedure | Displays a stand alone error page with a Back link for errors that don't get generated from Oracle Portal.

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