Designing Intelligent Event Processor (IEP) Projects

Insert Stream

The Insert Stream operator converts a relation into a stream.

When the Insert Stream operation is triggered, all changed or new records are issued as output.

The Insert Stream operator passes new records as output. In contrast, the Relation Output operator issues individual records tagged with either a plus, meaning a new record, or minus, meaning a record that was issued previously but is no longer part of the relation result.

Use the Insert Stream operator when you want to pass new or changed records into the output stream.

ProcedureTo Create an Insert Stream Operator

  1. Drag an Insert Stream operator from the Palette to the Design view.

  2. Connect it to an operator with a relation output.

  3. Double-click the Insert Stream operator.

    The property editor opens.

  4. The Details section of the property editor displays the name of the operator and the output schema.

  5. Click OK.