The OGSA-DAI Trigger component provides a
mechanism to notify an OGSA-DAI server when a
table in an SQL database has had its rows
modified. It then executes a stored OGSA-DAI
workflow to perform an action based on the
notification. The trigger also provides the old
and new values for the modified row which allows
specific actions to be taken based on the exact
database changes. These actions can use the full
range of access, transformation, and delivery
functionality available in OGSA-DAI.
