Hi!
I have an EAR file that I want to deploy in Geronimo.
I use some CMP Beans there and some of these need a self written
TypeConverter, which looks the following (it implements the TypeConverter
Interface from the tranql-jar file that geronimo uses):
package mypackage;
import java.sql.Timestamp;
import java.util.Date;
import org.tranql.sql.TypeConversionException;
import org.tranql.sql.TypeConverter;
public class MyTypeConverter implements TypeConverter {
static final long serialVersionUID = 0L;
public static final MyTypeConverter CONVERTER = new MyTypeConverter();
public SaschasTypeConverter() {
}
public Object convertJavaToSQLType(Object obj)
throws TypeConversionException {
Object returnObj = obj;
if (obj == null) {
return null;
} else if (obj instanceof Boolean)
returnObj = ((Boolean) obj).equals(Boolean.TRUE)
? new Integer(0)
: new Integer(1);
else if (obj instanceof Date)
returnObj = new Timestamp(((Date) obj).getTime());
else
throw new TypeConversionException(
"No conversion possible for Java Type:
" + obj.getClass());
return returnObj;
}
public Object convertSQLToJavaType(Object obj)
throws TypeConversionException {
Object returnObj = obj;
if (obj == null) {
return null;
} else if (obj instanceof Integer)
returnObj = ((Integer) obj).equals(new Integer(0))
? Boolean.TRUE
: Boolean.FALSE;
else if (obj instanceof Timestamp)
returnObj = new Date(((Timestamp) obj).getTime());
else
throw new TypeConversionException(
"No conversion possible for SQL Type: "
+ obj.getClass());
return returnObj;
}
}
The deployment for the Bean I have problems with looks like this:
<entity>
<ejb-name>MyEntityBean</ejb-name>
<table-name>TABLE</table-name>
<cmp-field-mapping>
<cmp-field-name>row1</cmp-field-name>
<cmp-field-class>java.lang.String</cmp-field-class>
<table-column>ROW1</table-column>
</cmp-field-mapping>
<cmp-field-mapping>
<cmp-field-name>row2</cmp-field-name>
<cmp-field-class>java.lang.String</cmp-field-class>
<table-column>ROW2</table-column>
</cmp-field-mapping>
<cmp-field-mapping>
<cmp-field-name>row3</cmp-field-name>
<cmp-field-class>java.lang.Integer</cmp-field-class>
<table-column>CUST_COUNTRY</table-column>
<sql-type>ROW3</sql-type>
</cmp-field-mapping>
<cmp-field-name>row4</cmp-field-name>
<cmp-field-class>java.lang.Boolean</cmp-field-class>
<table-column>ROW4</table-column>
<sql-type>INTEGER</sql-type>
<type-converter>mypackage.MyTypeConverter</type-converter>
</cmp-field-mapping>
<cmp-field-mapping>
<cmp-field-name>row5</cmp-field-name>
<cmp-field-class>java.util.Date</cmp-field-class>
<table-column>ROW5</table-column>
<sql-type>TIMESTAMP</sql-type>
<type-converter>mypackage.MyTypeConverter</type-converter>
</cmp-field-mapping>
<resource-ref>
<ref-name>jdbc/MyDataBase</ref-name>
<resource-link>mydatabase</resource-link>
</resource-ref
>
</entity>
So long everything looks fine to me, but when I deploy my Application I get
the following exception:
Deployment failed:
Could not deploy module
Show full details
Could not deploy module
org.apache.geronimo.common.DeploymentException: Could not deploy module
...
Caused by: org.apache.geronimo.common.DeploymentException: Cannot create
type converter mypackage.MyTypeConverter
at
org.openejb.deployment.SchemataBuilder.processEnterpriseBeans(SchemataBuilder.java:436)
... 32 more
Caused by: java.lang.ClassCastException: mypackage.MyTypeConverter
at
org.openejb.deployment.SchemataBuilder.processEnterpriseBeans(SchemataBuilder.java:434)
... 33 more
I had a look at the geronimo source code and notices that the Exception is
thrown at these lines in the ScemataBuilder:
try
{
Class typeConverterClass =
cl.loadClass(mapping.getTypeConverter().trim());
typeConverter = (TypeConverter)typeConverterClass.newInstance();
}
catch(Exception e)
{
throw new DeploymentException("Cannot create type converter " +
mapping.getTypeConverter(), e);
}
My problem: I have absolutely no Idea, why Geronimo cannot cast
MyTypeConverter to a generic TypeConverter... I assume that it has anything
to do with the ClassLoader Geronimo uses, but I don't see any possible
solution for me...
I would really be pleased if anybody could help me with this problem.
Thx, Sascha
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