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From José María Ruiz <josema...@simpleoption.com>
Subject A problem with iBatis3
Date Tue, 11 May 2010 15:03:51 GMT

Hi.

First, thanks for you effort with iBatis. I think it's a wonderful "orm" for
all of us who don't hate sql ;).

Now my problem.

I've a web app working with iBatis2. All was fine, but I just wanted to use
the new iBatis3.

After some knowledge and word mapping between the two versions I get it
working more or less until I tried my first <select>, and I got:

11:16:27.893 [main] DEBUG o.a.i.d.pooled.PooledDataSource - PooledDataSource
forcefully closed/removed all connections.
11:16:27.899 [main] DEBUG o.a.i.d.pooled.PooledDataSource - PooledDataSource
forcefully closed/removed all connections.
11:16:27.899 [main] DEBUG o.a.i.d.pooled.PooledDataSource - PooledDataSource
forcefully closed/removed all connections.
11:16:27.899 [main] DEBUG o.a.i.d.pooled.PooledDataSource - PooledDataSource
forcefully closed/removed all connections.
11:16:28.186 [main] DEBUG o.a.i.d.pooled.PooledDataSource - Created
connection 14871751.
11:16:28.189 [main] DEBUG java.sql.Connection - ooo Connection Opened
ID de la marca: 162
11:16:28.295 [main] DEBUG java.sql.PreparedStatement - ==>  Executing:
SELECT id, nombre FROM marcas WHERE id = ?
11:16:28.296 [main] DEBUG java.sql.PreparedStatement - ==> Parameters:
162(Integer)
11:16:28.339 [main] DEBUG java.sql.ResultSet - <==    Columns: id, nombre
11:16:28.339 [main] DEBUG java.sql.ResultSet - <==        Row: 162,
GIANTmicrobes
11-may-2010 11:16:28 com.simpleoption.eureka.ibatis.marca.MarcaRepository
getById
GRAVE: Que leches pasa:org.apache.ibatis.exceptions.IbatisException:
### Error querying database.  Cause:
org.apache.ibatis.reflection.ReflectionException: Error instantiating class
com.simpleoption.eureka.repositorios.marca.Marca with invalid types () or
values (). Cause: java.lang.reflect.InvocationTargetException
### The error may involve marca.getById-Inline
### The error occurred while setting parameters
### Cause: org.apache.ibatis.reflection.ReflectionException: Error
instantiating class com.simpleoption.eureka.repositorios.marca.Marca with
invalid types () or values (). Cause:
java.lang.reflect.InvocationTargetException
11:16:28.363 [main] DEBUG java.sql.Connection - xxx Connection Closed
11:16:28.363 [main] DEBUG o.a.i.d.pooled.PooledDataSource - Returned
connection 14871751 to pool.

I don't understand the error, what is this "Error instantiating class
com.simpleoption.eureka.repositorios.marca.Marca with invalid types () or
values ()"? where should I look?

I thougth it was a problem with mapping in the file "Marca.xml" but it looks
fine:


<resultMap id="marcaResult" type="Marca">
<result property="id" column="id" javaType="Integer"/>
<result property="nombre" column="nombre" javaType="String"/>
</resultMap>
<select id="getById" resultMap="marcaResult" parameterType="Integer">
        SELECT id, nombre
        FROM marcas
        WHERE id = #{id}
</select>


The file Marca.java is (yes, I'm using lombok, but it works):

@EqualsAndHashCode(of="id", callSuper=false)
public class Marca extends Entidad<Integer>  implements Serializable {

    private static final long serialVersionUID = -7672146657644908136L;

    @Getter @Setter private Integer id;
    @Getter @Setter private String nombre;
}

Simple, isn't it? I can select the table without problems through the psql
command of postgresql.


Cheers.

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