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Artifacts cannot be directly migrated from CEP 3.1.0 to CEP 4.0.0 since the configurable objects in CEP 4.0.0 are different to that in CEP 3.1.0. Therefore, the configuration should be handled as follows.

Artifact Type in CEP 3.1.0  

Replaced in CEP 4.0.0 ByNoteRecommended Action
  • Input Event Adapter
  • Event Builder
Event Receiver

The Event Receiver artifact in CEP 4.0.0 embeds both the Input Event Adapter and Event Builder artifacts in CEP 3.1.0.

Identify the input event adapters and event builders used in combination in CEP 3.1.0, and redefine them as event receivers. For detailed instructions, see Configuring Event Receivers.

  • Event Stream
N/A 

Redefine the event streams in CEP 4.0.0. For detailed instructions, see Understanding Event Streams.

  • Output Event Adapter
  • Event Formatter
Event PublisherThe Event Publisher artifact in CEP 4.0.0 embeds both the Output Event Adapter and Event Formatter artifacts in CEP 3.1.0.

Identify the output event adapters and event formatters used in combination in CEP 3.1.0, and redefine them as event publishers. For detailed instructions, see Creating Alerts.

  • Execution Plan
N/A

The Siddhi Query Language in CEP 4.0.0 is different to that in CEP 3.1.0.
Therefore, execution plans cannot be directly migrated from CEP 3.1.0 to CEP 4.0.0 since the Siddhi queries will not function in CEP 4.0.0.

Redefine the execution plans in CEP 4.0.0.

For detailed instructions on defining execution plans, see Creating a Standalone Execution Plan and Creating a STORM Based Distributed Execution Plan.

For the modified Siddhi Query Language, see SiddhiQL Guide 3.0.

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