I think your problem might be that your SQL doesn't have a result
column ELEMENTO. I believe you should change your SQL to:
select
TIPO_RIGA_ID, ELEMENTO - 1 AS ELEMENTO, NOME, TIPO_ELEMENTO_ID
from TIPI_DATO_RIGA
where tipo_dato_id = #id:INTEGER#
so that the result set contains the correct column name in the meta
data.
Randy
________________________________
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Friday, November 17, 2006 9:34 AM
To: [email protected]
Subject: select list: expression values
Hi all
The following SQL map and query
<resultMap id="mapTipoRiga"
class="it.finmatica.gpj.ec.tipidato.TipoCampoBean">
<result property="id" column="TIPO_RIGA_ID" jdbcType="NUMBER"
javaType="int"/>
<result property="ordinale" column="ELEMENTO" jdbcType="NUMBER"
javaType="int"/>
<result property="nome" column="NOME"
typeHandler="it.finmatica.gpj.aa.frontebd.NomeTypeHandlerCallback"/>
<result property="idTipoOrizzontale" column="TIPO_ELEMENTO_ID"
jdbcType="NUMBER" javaType="int"/>
</resultMap>
<select id="selectTipoRiga" resultMap="mapTipoRiga">
select
TIPO_RIGA_ID, ELEMENTO - 1, NOME, TIPO_ELEMENTO_ID
from TIPI_DATO_RIGA
where tipo_dato_id = #id:INTEGER#
</select>
raises the following exception
DEBUG [main] - {pstm-100001} PreparedStatement: select
TIPO_RIGA_ID, ELEMENTO - 1, NOME, TIPO_ELEMENTO_ID from TIPI_DATO_RIGA
where tipo_dato_id = ?
DEBUG [main] - {pstm-100001} Parameters: [21]
DEBUG [main] - {pstm-100001} Types: [java.lang.Integer]
com.ibatis.common.jdbc.exception.NestedSQLException:
--- The error occurred in
it/finmatica/gpj/aa/frontebd/TipoRiga.xml.
--- The error occurred while applying a result map.
--- Check the GPJ.mapTipoRiga.
--- Check the result mapping for the 'ordinale' property.
--- Cause: java.sql.SQLException: Invalid colum name
Caused by: java.sql.SQLException: Invalid colum name
at
com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQuery
WithCallback(GeneralStatement.java:185)
at
com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQuery
ForList(GeneralStatement.java:123)
I have to load an 1-based index (stored in the ELEMENTO column) to
transform it into a 0-based Java index. I want to avoid to write a type
handler, thus i thought to use an expression as part of a select list
<http://www.firstsql.com/tutor3.htm#op>
select ELEMENTO - 1
Please note that the query above is correct and is successfully run from
PL/SQL developer.
Replacing the "ELEMENTO - 1" expression with the "ELEMENTO" column
"works out" the problem but loades 1-based indexes. :(
Is there anything wrong?
Shall I write a type handler? (I cannot change the ordinale property of
the TipoCampoBean)
Regards
