From: | Kris Jurka <books(at)ejurka(dot)com> |
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To: | Lloyd Parkes <Lloyd(dot)Parkes(at)ecs(dot)vuw(dot)ac(dot)nz> |
Cc: | pgsql-jdbc(at)postgresql(dot)org |
Subject: | Re: Integer is not a subclass of Short |
Date: | 2010-07-29 23:49:31 |
Message-ID: | alpine.BSO.2.00.1007291947300.10995@leary.csoft.net |
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Lists: | pgsql-jdbc |
On Fri, 30 Jul 2010, Lloyd Parkes wrote:
> I have found a problem with a discrepancy between getColumnClassName()
> in jdbc/pgjdbc/org/postgresql/jdbc2/AbstractJdbc2ResultSetMetaData.java
> and internalGetObject() in
> jdbc/pgjdbc/org/postgresql/jdbc2/AbstractJdbc2ResultSet.java.
>
> The former is defined (indirectly) to return the fully qualified class
> name of (a possible superclass of) the object returned by the latter.
> For a smallint column, the former returns "java.lang.Short", but the
> latter returns a java.lang.Integer. Short is neither Integer, nor a
> superclass of Integer.
According to my attached testcase getColumnClassName does return Integer.
> I guess someone should add the line "return new
> Short(getShort(columnIndex));" between lines 123 and 124 of rev 1.108 of
> AbstractJdbc2ResultSet.java. There may be a similar problem with tinyint
> columns, but I don't have any tinyint columns.
The spec requires the return type for smallint to be Integer. See table
B-3 of the JDBC4 spec.
Kris Jurka
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