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id: version-0.68.0-org.apache.streampipes.processors.transformation.jvm.processor.state.buffer title: State Buffer sidebar_label: State Buffer original_id: org.apache.streampipes.processors.transformation.jvm.processor.state.buffer

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Description

Buffers values of a sensor, while state does not change. Select a state field in the event. Events are buffered as long as state field does not change. When it changes result event is emitted.

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Required input

Define the state and sensor value field

Timestamp

A mapping property for a timestamp field

State

Select the field representing the state

Sensor value to cache

Select the field with the numerical values to buffer

Output

Emits a new event on state change, with the fields timestamp, state, and a list containing all sensor values.