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From "Kim Haase (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3779) Add client side JDBC statement pool documentation
Date Tue, 22 Jul 2008 21:21:31 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12615794#action_12615794
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Kim Haase commented on DERBY-3779:
----------------------------------

The only user-visible API change for this feature seems to be the addition of the maxStatements
property to ClientConnectionPoolDataSource. Is that correct?

I would expect this feature also to work for ClientConnectionPoolDataSource40, though I don't
see any explicit statement to this effect in DERBY-3313 or its subtasks (I might have missed
it, though). Is that true?

I assume that a developer must use these data sources in order to use statement caching.

The package.html file has sample code that does the following (comments removed):

ClientConnectionPoolDataSource cpds = new ClientConnectionPoolDataSource();
cpds.setMaxStatements(20);
PooledConnection pc = cpds.getPooledConnection();

I'm assuming that you'd also have to set various other connection properties before calling
getPooledConnection().

This new feature belongs in the Admin Guide, since that is where the client driver is discussed.
(The Developer's Guide deals almost entirely with the embedded driver.) The information should
probably be added to cadminnsdatasources.dita (Accessing the Network Server by using a DataSource),
and another example should be added to the subtopic radminnsdatasourcexmp.dita (DataSource
access example) showing the use of the statement cache. Does this make sense? I'll see if
there are other places where it would make sense to mention statement caching.

> Add client side JDBC statement pool documentation
> -------------------------------------------------
>
>                 Key: DERBY-3779
>                 URL: https://issues.apache.org/jira/browse/DERBY-3779
>             Project: Derby
>          Issue Type: Task
>          Components: Documentation
>    Affects Versions: 10.4.1.4, 10.5.0.0
>            Reporter: Kristian Waagan
>            Assignee: Kim Haase
>            Priority: Minor
>
> Document the new feature client side JDBC statement cache in the manual(s).
> As a starter, see DERBY-3313 and the package.html file (or browse it from the Subversion
repository).

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