An active source is a transformation that can return a different number of rows for each input row. The Integration Service can load data from different active sources to an XML target. However, all ports within a single group of the XML target must receive data from the same active source.
The following transformations are active sources:
Aggregator
Application Source Qualifier
Custom, configured as an active transformation
Java, configured as an active transformation
Joiner
MQ Source Qualifier
Normalizer (VSAM or pipeline)
Rank
Sorter
Source Qualifier
SQL
XML Source Qualifier
Mapplet, if the mapplet contains one of the above transformations