| Oracle Workflow API Reference Release 2.6.3 Part Number B10286-02 |
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procedure CONTEXT
(pkg_name IN VARCHAR2,
proc_name IN VARCHAR2,
arg1 IN VARCHAR2 DEFAULT '*none*',
arg2 IN VARCHAR2 DEFAULT '*none*',
arg3 IN VARCHAR2 DEFAULT '*none*',
arg4 IN VARCHAR2 DEFAULT '*none*',
arg5 IN VARCHAR2 DEFAULT '*none*');
Description
Adds an entry to the error stack to provide context information that helps locate the source of an error. Use this procedure with predefined errors raised by calls to TOKEN( ) and RAISE( ), with custom-defined exceptions, or even without exceptions whenever an error condition is detected.
Arguments (input)
| pkg_name | Name of the procedure package. |
| proc_name | Procedure or function name. |
| arg1 | First IN argument. |
| argn | nth IN argument. |
/*PL/SQL procedures called by function activities can use the WF_CORE APIs to raise and catch errors the same way the Workflow Engine does.*/
package My_Package is
procedure MySubFunction(
arg1 in varchar2,
arg2 in varchar2)
is
...
begin
if (<error condition>) then
Wf_Core.Token('ARG1', arg1);
Wf_Core.Token('ARG2', arg2);
Wf_Core.Raise('ERROR_NAME');
end if;
...
exception
when others then
Wf_Core.Context('My_Package', 'MySubFunction', arg1, arg2);
raise;
end MySubFunction;
procedure MyFunction(
itemtype in varchar2,
itemkey in varchar2,
actid in number,
funcmode in varchar2,
result out varchar2)
is
...
begin
...
begin
MySubFunction(arg1, arg2);
exception
when others then
if (Wf_Core.Error_Name = 'ERROR_NAME') then
-- This is an error I wish to ignore.
Wf_Core.Clear;
else
raise;
end if;
end;
...
exception
when others then
Wf_Core.Context('My_Package', 'MyFunction', itemtype, itemkey, to_char(actid), funmode);
raise;
end MyFunction;
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