[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]
Assembly: NEsper (in NEsper.dll)
Returns an indication of whether there are any callbacks or index nodes at
all in this set.
Namespace: net.esper.filter
NOTE: the client to this method must use the read-write lock of this object to lock, if required by the clientcode.
Assembly: NEsper (in NEsper.dll)