13. API: SodaDocumentCursor Class

A SodaDocumentCursor is used to walk through a set of SODA documents returned from sodaCollection.find() and sodaOperation.getCursor() methods.

Note

In this release, SODA is only supported in the node-oracledb Thick mode. See Enabling node-oracledb Thick Mode.

From node-oracledb 6.4, the SodaDocumentCursor class implements the asyncIterator() symbol to support asynchronous iteration. See Creating and Accessing SODA Documents for examples.

13.1. SodaDocumentCursor Methods

sodaDocumentCursor.close()

New in version 3.0.

Promise:

promise = close();

Closes a SodaDocumentCursor. It must be called when the cursor is no longer required. It releases resources in node-oracledb and Oracle Database.

Callback:

If you are using the callback programming style:

close(function(Error error){});

The parameters of the callback function function(Error error) are:

Callback Function Parameter	Description
Error `error`	If `close()` succeeds, `error` is NULL. If an error occurs, then `error` contains the error message.

sodaDocumentCursor.getNext()

New in version 3.0.

Promise:

promise = getNext();

Returns the next SodaDocument in the cursor returned by a find() terminal method read operation.

If there are no more documents, the returned document parameter will be undefined.

Callback:

If you are using the callback programming style:

getNext(function(Error error, SodaDocument document){});

The parameters of the callback function function(Error error, SodaDocument document) are:

Callback Function Parameter	Description
Error `error`	If `getNext()` succeeds, `error` is NULL. If an error occurs, then `error` contains the error message.
SodaDocument `document`	The next document in the cursor. If there are no more documents, then `document` will be undefined.