io.camunda.zeebe.engine.processing.streamprocessor.writers.EventApplyingStateWriter

public final class EventApplyingStateWriter extends Object implements StateWriter

A state writer that uses the event applier, to alter the state for each written event.

Note that it does not write events to the stream itself, but it delegates this to the TypedStreamWriter.

Note that it does not change the state itself, but delegates this to the EventApplier.

Constructor Details
- EventApplyingStateWriter
  
  public EventApplyingStateWriter(TypedEventWriter eventWriter, EventApplier eventApplier)
Method Details
- appendFollowUpEvent
  
  public void appendFollowUpEvent(long key, Intent intent, RecordValue value)
  
  Specified by:
  
  appendFollowUpEvent in interface TypedEventWriter
- canWriteEventOfLength
  
  public boolean canWriteEventOfLength(int eventLength)
  
  Description copied from interface: TypedEventWriter
  Use this to know whether you can write an event of this length.
  Example:
  final TypedEventWriter writer; // ... assign the writer final TypedRecord<?> record; // ... assign record if (!writer.canWriteEventOfLength(record.getLength())) { // raise an incident or some such return; }
  Specified by:
  
  canWriteEventOfLength in interface TypedEventWriter
  
  Parameters:
  
  eventLength - the length of the event that will be written
  
  Returns:
  
  true if an event of length eventLength can be written
- getMaxEventLength
  
  public int getMaxEventLength()
  
  Specified by:
  
  getMaxEventLength in interface TypedEventWriter
  
  Returns:
  
  the maximum event length

Class EventApplyingStateWriter

Constructor Summary