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The following transform options are available.
Using the Expression Transformer
The Expression Transformer lets you write a regular expression to make changes to message data. Click the button to add a new row. In the Path column, enter the message field you want to transform (e.g., MSH-3). Click on the expression symbol to see a list of possible expressions. You can also start typing to see a list of matching expression possibilities.
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Expressions are automatically saved.
Using the Table Transformer
Use the Table Transformer to map existing HL7 path values to new ones. Click the Add Table Transformer button to add the transformer, then click the icon to launch the popup window.
Set the Assignment Path for the transformer and the Source Path (where the data will come from). In the Table Name field, specify the table to which the information should be written. You can create a new table or write to an existing table.
Set the value that should be used for an Empty value (the default is to leave it empty) and what should be used if the source value cannot be matched (the default is to leave it unchanged).
On the Mappings tab, list the In values and the corresponding Out values (that is, what matches for each value is). Optionally, enter a description. You can also specify that matches be case-sensitive by checking the box.
When you are finished, close the popup window. The list of transformers will show the new table transformer.