Developer Mapping Guide

10.5.4
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Creating and Configuring a Run-time Link

Create a run-time link between transformation groups to link ports at run time based on a parameter or a link policy or both.

Create a run-time link in the following ways:

Press Ctrl and drag the group to a downstream transformation in the dynamic mapping.

The

Run-time Linking

dialog box appears.

To create a run-time link to a Write transformation or a reusable transformation, drag a group from an upstream transformation to a group in the reusable transformation or a Write transformation. Then, select

Create Run-time Link

in the

Linking

dialog box to open the

Run-time Linking

dialog box.

In the downstream transformation to which you want to create a run-time link, go to the

Properties

view and click the

Run-time Linking

tab.

In the

Link Properties

area, select one or both from the following options to determine which ports to link at run time:

Parameter

. Use parameter if the port names can change between mapping runs and you know the port names. You can create a new parameter or choose an existing parameter of type Input Link Set.

Link Policy

. Use link policy to automatically link ports by name. This option is selected by default. If the port names contain a prefix or suffix, enter the string to ignore.

To create a new parameter of Input Link Set type, perform the following steps:

Click

New

In the

Parameters

dialog box, enter a parameter name.

For example,

Cust_InputLinkSet

Optionally, enter a parameter description.

Enter a default value for the parameter as comma-separated pairs of ports.

For example, enter the default value as follows:

C_NAME->Cust_name, C_ACCTBAL->Cust_acctbal

Click

To choose an existing parameter of Input Link Set type, perform the following steps:

Click

Browse

In the

Assign Parameter

dialog box, choose a parameter.

Optionally, create new parameters or edit parameters from this dialog box.

Click

Optionally, to add another run-time link from the

Run-time Linking

dialog box, perform the following steps:

Click the

New

button (

) in the

Links

area.

The

New Link

dialog box appears.

Choose a group from another transformation in the dynamic mapping.

Click

to create a run-time link.

The Developer tool creates run-time links between the groups.

To edit an existing run-time link, right-click the link, and select

Run-time Linking

The

Run-time Linking

dialog box appears where you can change the options to determine which ports to link.

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Table of Contents

Developer Mapping Guide

Developer Mapping Guide

Creating and Configuring a Run-time Link

Creating and Configuring a Run-time Link