The Parameters tab of the Processing sequence editor allows you to add, delete and revise the definition of parameters that the Processing Sequence can receive (inbound) or return (outbound).

Processing Sequence parameter values in LANSA Composer may be up to 1024 characters in length.  Due to the necessity, when used in certain contexts to surround alphanumeric values with quotes (and to escape embedded quotes), the maximum length in practice will be 1022 or less.  Some external interfaces will limit parameter values to 256 characters or less.

NOTE 1: Each Processing Sequence parameter (whether input or output) can only have one occurrence.  That is, you cannot use Processing Sequence parameters to receive or return variable lists.
NOTE 2: Output Processing Sequence parameters are not supported in all interfaces that LANSA Composer provides for running a Processing Sequence.  Primarily they are intended for when one Processing Sequence directly invokes another Processing Sequence.  In many other interfaces, the values of Processing Sequence output parameters will NOT be directly available to the caller.

Add Parameters to the Processing Sequence

To add a parameter:

  1. Click the Add button on the toolbar or select the Parameter command from the Insert menu.  You can also add a parameter by selecting a variable in the Variables tab and dragging and dropping it over the parameters list.
  2. Enter or change the parameter name, description, parameter class and default value as required.

Delete Parameters from the Processing Sequence

To delete a parameter:

  1. Select the parameter to be deleted in the parameters list.
  2. Click the Delete button in the toolbar or select Delete from the Edit menu.
  3. Click Yes when prompted to confirm the deletion.

Cut, Copy or Paste Parameters in the Processing Sequence

To cut or copy a parameter:

  1. Select the required parameter in the parameters list.
  2. Click the Cut or Copy buttons in the toolbar or select the corresponding command from the Edit menu.

To paste a parameter definition that was previously cut or copied, click the Paste button in the toolbar or select the Paste command from the Edit menu.

Re-arrange Parameters

You can re-arrange parameters by moving them up or down the parameter list. To move a parameter up or down the parameter list:

  1. Select the parameter to be moved
  2. Click the Move Up or Move Down button on the toolbar (or select the corresponding command from the Edit menu) until the parameter is in the desired position

Revise Parameter Definitions

You can revise the name, description and default value for each parameter. To revise the parameter:

  1. For the parameter to be revised, click in the column whose value you wish to revise.
  2. Type or choose the new value for the parameter name, description, parameter class or default value.