Abstract repeater action. Subclasses will typically just self-add an
event handler that will act on the repeater.
See Also:RepeaterActionDefinitionBuilder version: $Id: RepeaterActionDefinition.java 517733 2007-03-13 15:37:22Z vgritsenko $
Get the name of the repeater on which to act. If null, the repeater
is the parent of the current widget (i.e. actions are in repeater rows). Otherwise,
the repeater is a sibling of the current widget.
the repeater name (can be null).