Developing Apama Applications > Apama EPL Reference > Events and Event Listeners > Event expressions > The followed-by event operator
The followed-by event operator
The followed-by operator -> is a Boolean operator that takes left and right operands, both event expressions. The followed-by operator waits for the left operand to become true and then waits for the right operand to become true. When both are true then the result value is true. If either becomes false, then the result value is false.
FollowedByExpr
Copyright © Software AG, Darmstadt, Germany and/or Software AG USA Inc., Reston, VA, USA, and/or its Subsidiaries and or/its Affiliates and/or their licensors.
Use, reproduction, transfer, publication or disclosure is prohibited except as specifically provided for in your License Agreement with Software AG.