In your docs you say "A predicate on the itemEvents (called a Selector) may have been associated to the ItemEventBuffer."
I can find 2 interfaces for ItemEvent. I can't find any reference to how to set the Selector, only TableInfo.getSelector(). I can't find any direct reference in the Javadoc's to ItemEventBuffer. I presume it is some kind of internal event buffer.
To quote the docs again they say the selector 'is applied before ItemEvents enter the ItemEventBuffer and can prevent some ItemEvents to enter the buffer'.

Can anyone clarify what a Selector is for, what it consists of and how to set it?