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b.devis@witboy.com
 Post subject: UserType please help
PostPosted: Fri Mar 11, 2005 5:25 am 
Regular
Regular

Joined: Thu Feb 24, 2005 2:34 pm
Posts: 80
Hibernate version:3.rc1

Hi i'm new to use UserType i have found this code in Hibernate documentation
http://www.hibernate.org/Documentation/ ... 2AndOracle


Code:
package dao.hibernate;



import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import org.hibernate.*;
import org.hibernate.usertype.*;

/**
* @author Colin Hawkett
*/
public abstract class TrimmedString implements UserType,Comparable,
    java.io.Serializable {
    public TrimmedString() {
        super();
    }

    public int[] sqlTypes() {
        return new int[] { Types.CHAR };
    }

    public Class returnedClass() {
        return String.class;
    }

    public boolean equals(Object x, Object y) throws HibernateException {
        return (x == y) || (x != null && y != null && (x.equals(y)));
    }

    public Object nullSafeGet(ResultSet rs, String[] names, Object owner) throws HibernateException, SQLException {
        String val = rs.getString(names[0]);
        return val != null ? val.trim() : null;
    }

    public void nullSafeSet(PreparedStatement st, Object value, int index) throws HibernateException, SQLException {
        st.setString(index, (String)value);
    }

    public Object deepCopy(Object value) throws HibernateException {
        if (value == null) return null;
        return new String((String)value);
    }

    public boolean isMutable() {
        return false;
    }
}



<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping SYSTEM "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<hibernate-mapping>


   <class name="vo.as400.CCmpf" table="sdgtwb_dat.arctb00f" lazy="false" where ="cdtbtb in ('CMP')">


     <composite-id>
      <key-property name="tpo_tbl"    column="cdtbtb"/>
      <key-property name="cdc_cmpf"    column="cdeltb" type="dao.hibernate.TrimmedString"/>
         </composite-id>




        <property name="dsc_cmpf"  column="DATITB" type="string" />


        </class>



</hibernate-mapping>


But receive this error.

org.hibernate.MappingException: Cannot instantiate custom type: dao.hibernate.TrimmedString

at org.hibernate.type.CustomType.<init>(CustomType.java:48)

at org.hibernate.type.TypeFactory.heuristicType(TypeFactory.java:183)

at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:214)

at org.hibernate.mapping.Property.getType(Property.java:47)

at org.hibernate.mapping.Component.getType(Component.java:150)

at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:207)

at org.hibernate.mapping.RootClass.validate(RootClass.java:187)

at org.hibernate.cfg.Configuration.validate(Configuration.java:814)

at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1037)

at database.AS400Session.<clinit>(AS400Session.java:30)

at workflow.WFCampionario.Test_AS400(WFCampionario.java:61)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:324)

at flashgateway.adapter.java.JavaBeanAdapter.invokeFunction(JavaBeanAdapter.java:65)

at flashgateway.filter.AdapterFilter.invoke(AdapterFilter.java:117)

at flashgateway.filter.MessageSecurityFilter.invoke(MessageSecurityFilter.java:144)

at flashgateway.filter.ServiceNameFilter.invoke(ServiceNameFilter.java:101)

at flashgateway.filter.EnvelopeFilter.invoke(EnvelopeFilter.java:102)

at flashgateway.filter.SessionFilter.invoke(SessionFilter.java:28)

at flashgateway.filter.LicenseFilter.invoke(LicenseFilter.java:57)

at flashgateway.filter.ErrorFilter.invoke(ErrorFilter.java:39)

at flashgateway.filter.LogFilter.invoke(LogFilter.java:46)

at flashgateway.filter.BatchProcessFilter.invoke(BatchProcessFilter.java:63)

at flashgateway.filter.PacketSecurityFilter.invoke(PacketSecurityFilter.java:68)

at flashgateway.filter.DebugFilter.invoke(DebugFilter.java:38)

at flashgateway.filter.SerializationFilter.invoke(SerializationFilter.java:89)

at flashgateway.Gateway.invoke(Gateway.java:217)

at flashgateway.controller.GatewayServlet.service(GatewayServlet.java:69)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)

at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)

at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)

at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)

at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)

at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)

at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)

at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)

at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:601)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)

at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)

at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)

at java.lang.Thread.run(Thread.java:534)

10:05:27,241 FATAL AS400Session:34 - Cannot instantiate custom type: dao.hibernate.TrimmedString

13530 [Thread-11] FATAL database.AS400Session - Cannot instantiate custom type: dao.hibernate.TrimmedString

Error: Configuration problemCannot instantiate custom type: dao.hibernate.TrimmedString


What's wrong please, can you help me...

Devis
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drj
 Post subject:
PostPosted: Fri Mar 11, 2005 8:33 am 
Expert
Expert

Joined: Fri Nov 07, 2003 4:24 am
Posts: 315
Location: Cape Town, South Africa
public abstract class TrimmedString
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drj
 Post subject:
PostPosted: Fri Mar 11, 2005 8:35 am 
Expert
Expert

Joined: Fri Nov 07, 2003 4:24 am
Posts: 315
Location: Cape Town, South Africa
BTW - I checked the url that you supplied. The code is correct. There is no mention of an abstract class.
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b.devis@witboy.com
 Post subject:
PostPosted: Fri Mar 11, 2005 8:49 am 
Regular
Regular

Joined: Thu Feb 24, 2005 2:34 pm
Posts: 80
Ok , i found my problem, here the correct code, using hibernate 3 i need to override these methods

hashCode
assemble
disassmeble
replace

but in the link that i found don't override these methods, then the code work fine.
Thank's for you help
Devis

Code:
package dao.hibernate;



import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import org.hibernate.*;
import org.hibernate.usertype.*;
import java.io.Serializable;
/**
* @author Colin Hawkett
*/
public class TrimmedString implements UserType,Serializable
{
    public TrimmedString() {
        super();
    }

    public int[] sqlTypes() {
        return new int[] { Types.VARCHAR };
    }

    public Class returnedClass() {
        return String.class;
    }

    public boolean equals(Object x, Object y) throws HibernateException {
        return (x == y) || (x != null && y != null && (x.equals(y)));
    }

    public Object nullSafeGet(ResultSet rs, String[] names, Object owner) throws HibernateException, SQLException {

        String val = rs.getString(names[0]);
          System.out.println("Codice cmpf originale "+val );
        return val != null ? val.trim() : null;
    }

    public void nullSafeSet(PreparedStatement st, Object value, int index) throws HibernateException, SQLException {
        st.setString(index, (String)value);
    }

    public Object deepCopy(Object value) throws HibernateException {
        if (value == null) return null;
        return new String((String)value);
    }

    public boolean isMutable() {
        return false;
    }


public int hashCode(Object x) throws HibernateException {
return x.hashCode();
}

public Object assemble(Serializable cached, Object owner)
throws HibernateException {
return cached;
}

public Serializable disassemble(Object value) throws HibernateException {
return (Serializable) value;
}

public Object replace(Object original, Object target, Object owner)
throws HibernateException {
return original;
}


}
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