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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;

See Also

RAISE

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