IBM BPM, V8.0.1, All platforms > Authoring services in Integration Designer > Defining and transforming data > Transforming data > Transforming data using XML maps > Mapping array elements using an XML map
Selecting the indexes of input and output array elements
When you are transforming array elements in the XML map editor, you can select the indexes of the input and output elements that you want the transform to operate over in the cardinality page of the properties view.
For each input array, you can select the indexes of the elements that you want the transform to operate on. To specify the indexes, enter a value in the Input array indices field of the Cardinality properties page for the transform.
Example of values you can enter:
Example values of input array indexes Selected index elements Value in input array indices field All indices * (or leave empty) Only index 5 5 Indices 1 through 3 1:3 Indices 1, 3, and 5 1,3,5 Indices 2 and up 2* Indices 1, 3, 5 and up 1,3,5:* Indices 2 through 8, but not 5 2:4,6:8 All indices but 5 1:4,6:* To set the index of the output array element that the transform will operate on, enter a value in the Output array indices field of the Cardinality properties page. This is slightly different from input index entries since only a single index is allowed. Leave the field empty to indicate that the whole output array will be utilized.