MarkLogic 12 EA 1 Product Documentation

xdmp:set-transaction-mode

xdmp:set-transaction-mode(
   $value as xs:string
) as empty-sequence()

Summary

Set the transaction mode for the current session. Calling this function has no effect on existing transactions.

Usage Notes

Transaction mode determines what type of transaction MarkLogic creates during a session. The transaction type is fixed when the transaction is created, so calling xdmp:set-transaction-mode never affects the current transaction.

The transaction mode defaults to "auto". To change the mode, you may either call xdmp:set-transaction-mode or use the xdmp:update or xdmp:commit XQuery prolog option.

Use the xdmp:update or xdmp:commit option to set the transaction mode before a transaction exists. Use xdmp:set-transaction-mode to set the mode during execution.

For more details, see Understanding Transactions in MarkLogic Server in the Application Developer's Guide.

See Also

• Transaction Mode in the Application Developer's Guide
• Transaction Type in the Application Developer's Guide

Example

declare option xdmp:transaction-mode "update";

  (: this transaction runs in update mode, due to the option :)
xdmp:set-transaction-mode("query"),
xdmp:document-insert("/docs/mydoc.xml", <myData/>),
xdmp:commit();

  (: but this new transaction runs in query mode :)
xdmp:get-transaction-mode(),
fn:doc("/docs/mydoc.xml")

=> "query"
   <myData/>