Output Port Modes

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Texera operators emit data through output ports. Each port advertises a mode that describes how downstream operators should interpret the stream of tuples it produces.

Set Snapshot

The port re-emits the complete result set on each update. Downstream operators always see the full materialized result.

Delta Updates

The port emits an incremental delta of the result set on each update. Downstream operators apply the delta on top of prior state instead of receiving a re-materialized snapshot.

Single Snapshot

The port emits exactly one snapshot for the entire execution (not per update). Used for visualization operators whose output may exceed the memory limit, making repeated full-snapshot emission impractical.