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Date: Wed, 1 Nov 2006 23:18:17 -0800 (PST)
From: "Henri Yandell (JIRA)" <jira@apache.org>
To: commons-dev@jakarta.apache.org
Subject: [jira] Updated: (DBUTILS-17) [dbutils] ScalarHandler subclasses
 that return Integers and Longs
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     [ http://issues.apache.org/jira/browse/DBUTILS-17?page=all ]

Henri Yandell updated DBUTILS-17:
---------------------------------

    Attachment: DBUTILS-17.patch

Unit tests and modified class files to resolve this patch.

I'm unsure yet if they should be added. The use-case is to make it easier to work out a count(*), but I'd expect it to only be saving the user a cast in the end (unless there are databases that like to return the result of select count(*) with a non Number type (we convert primitive ints etc up to Numbers).

> [dbutils] ScalarHandler subclasses that return Integers and Longs
> -----------------------------------------------------------------
>
>                 Key: DBUTILS-17
>                 URL: http://issues.apache.org/jira/browse/DBUTILS-17
>             Project: Commons DbUtils
>          Issue Type: Improvement
>         Environment: Operating System: All
> Platform: All
>            Reporter: greg hawkes
>            Priority: Minor
>             Fix For: 1.1
>
>         Attachments: DBUTILS-17.patch, IntScalarHandler.java, LongScalarHandler.java
>
>
> I (and, looking around, many other people) most often use ScalarHandler to fetch
> the result of an SQL count(*) column. ScalarHandler works, but I was forever
> needing to parse the result to create an Integer (and occasionally, a Long)
> value. Several possible solutions have been proposed to make this task easier.
> This is mine.
> I have extended ScalarHandler to create IntScalarHandler and LongScalarHandler,
> which return Integers and Longs, respectively. Their usage is exactly the same
> as ScalarHandler. They have been tested on Oracle, MS-SQL Server, and PostgreSQL
> databases, and have proven to be very effective. I hope that they can be
> included in the DbUtils distribution, where they fit right alongside the
> existing ScalarHandler.

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