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Posted to issues@commons.apache.org by "Oliver Heger (JIRA)" <ji...@apache.org> on 2013/04/30 21:46:17 UTC
[jira] [Resolved] (CONFIGURATION-533) Can DatabaseConfiguration
turn CLOB values into a Strings before returning from getProperty(String)?
[ https://issues.apache.org/jira/browse/CONFIGURATION-533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Oliver Heger resolved CONFIGURATION-533.
----------------------------------------
Resolution: Fixed
Fix Version/s: 2.0
Marking issue as resolved; the desired functionality has been implemented. Feel free to reopen if further problems are discovered.
> Can DatabaseConfiguration turn CLOB values into a Strings before returning from getProperty(String)?
> ----------------------------------------------------------------------------------------------------
>
> Key: CONFIGURATION-533
> URL: https://issues.apache.org/jira/browse/CONFIGURATION-533
> Project: Commons Configuration
> Issue Type: Improvement
> Components: Type conversion
> Affects Versions: 1.9
> Environment: Oracle 11gR2 database and JDBC driver
> Reporter: Chris Seieroe
> Assignee: Oliver Heger
> Priority: Minor
> Fix For: 2.0
>
>
> The table I'm using for DatabaseConfiguration stores the value in a CLOB column. When the getProperty(String) method searches the table to get the values, the Oracle JDBC driver is returning them back as oracle.sql.CLOB instances.
> I also use Microsoft SQL Server and its latest JDBC drivers on a similar table where the value is in a TEXT column. I know, I need to switch the column type since it's being deprecated, but that's what it is for now. Anyways, when I get a value from that table, it returns back a String instances.
> I'm not asking us to support the Oracle-specific class, but perhaps we can add some support for the java.sql.Clob interface. Can we modify the getProperty(String) method to turn those into Strings? When they're java.sql.Clob instances, I cannot use all the nice methods that do type conversion since they don't know what to do with a java.sql.Clob instance.
> Here is a code sample that might be helpful:
> private String convertClob(Clob clobValue) {
> String strValue = null;
> try {
> int length = (int) clobValue.length();
> if (length > 0) {
> strValue = clobValue.getSubString(1, length);
> } else {
> strValue = "";
> }
> } catch (SQLException e) {
> throw new ConversionException(e);
> }
> return strValue;
> }
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