SQLTemplate does support multiples sets of parameters (batching) for the same template. So in this respect it is a superset of InsertBatchQuery. Don't remember if it does the right JDBC batch thing in the backend though (but that would be a different Jira)

Andrus

On Jan 13, 2010, at 5:17 PM, Evgeny Ryabitskiy wrote:

Actually I am really missing for nice Batch support when I have to do
mass insert in some table.
There was some issue to move data between databases (from MS SQL to Oracle).

Chain is slow when you are moving huge tables.

For now I am using InsertBatchQuery but is little bit painful :(
InsertBatchQuery  oriented for internal use and requires DbEntity to
be instantiated. So I am loading DB meta data to form DbEntity  (like
our reverse engineering is working) .

maybe we could do such embedded feature? Make InsertBatchQuery  as API
(external) add there DbEntity  reverse loading (and DbEntity caching).
it should be very useful!

Evgeny.



2010/1/13 Andrus Adamchik (JIRA) <[email protected]>:

[ https://issues.apache.org/jira/browse/CAY-304?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrus Adamchik closed CAY-304.
-------------------------------

   Resolution: Won't Fix

the closest analog is querychain, although it uses separate preparedstatements

SQLTemplates and Batches Support
--------------------------------

                Key: CAY-304
                URL: https://issues.apache.org/jira/browse/CAY-304
            Project: Cayenne
         Issue Type: Improvement
         Components: Core Library
   Affects Versions: 1.2 branch
           Reporter: Andrus Adamchik
           Assignee: Andrus Adamchik
           Priority: Minor
            Fix For: Undefined future


I was just doing some testing with OpenBase and one annoying thing was the lack of batch support in SQLTemplate. Each SQLTemplate corresponds to a single JDBC statement, and those expect just one command... I suggest having another Velocity directive (say "#go") that will separate individual statements in the template. This way we can build (sort of) db-independent batches. Scheduling this for 1.2 Also this feature should make preparation of DB for unit testing MUCH simpler.

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