When you run a session, the Integration Service validates the mapping against the procedure code at runtime. When the Integration Service does this, it tracks whether or not it allows the Custom transformations to block data:
Configure the Custom transformation as a blocking transformation.
The Integration Service always allows the Custom transformation to block data.
Configure the Custom transformation as a non-blocking transformation.
The Integration Service allows the Custom transformation to block data depending on the mapping configuration. If the Integration Service can block data at the Custom transformation without blocking all sources in the target load order group simultaneously, it allows the Custom transformation to block data.
You can write the procedure code to check whether or not the Integration Service allows a Custom transformation to block data. Use the INFA_CT_getInternalProperty() function to access the INFA_CT_TRANS_MAY_BLOCK_DATA property ID. The Integration Service returns TRUE when the Custom transformation can block data, and it returns FALSE when the Custom transformation cannot block data.
ASK INFAPreview
