cursorNext: Pull next object from a cursor
In mbq/rethinker: RethinkDB Client

Description Usage Arguments Value Note Author(s)

View source: R/cursor.R

Pulls a datum from a given cursor, sending continuation queries when needed.

1	cursorNext(cursor, inBatch = FALSE)

`cursor`	Cursor to pull from; a result of `r()$...$run(...)`.
`inBatch`	If set to `TRUE`, enables batch mode, i.e., returning the whole local cache (this is usually NOT the whole data available under cursor) rather than a single result. Values other than `TRUE` or `FALSE` are invalid.

In a default mode, a list representing the returned response JSON, or NULL if no data is available. In a batch mode, list of such lists representing the whole cache (which may be empty, corresponding to default mode's NULL).

When this function empties local cache, it may ask RethinkDB for more data and hence block. Use isCursorEmpty to decide if it makes sense to call cursorNext. In case you don't need any more answers for the query, close cursor with close method.

Miron B. Kursa

mbq/rethinker documentation built on May 22, 2019, 12:57 p.m.