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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