Thanks for the quick reply, I just learned java for a few weeks, still trying to get use to eclipse, can you show me how to enable debug logging to see the generate query?
here is my dbAccess method using generic: public T getObjectById(String query, UUID id) { T rObject = null; // reset the error this.error = ""; try { rObject = (T)sqlMap.queryForObject(query, id); } catch (SQLException e) { // System.out.println(e); this.error = e.getMessage(); } return rObject; } and here is my testing code: DBAccess<Person> ac = new DBAccess<Person>(); Person p = ac.getObjectById("getPersonById", UUID.fromString("A26A19F6-18C4-4ba0-84BB-6EAD12B4CB8D")); System.out.println(p.getId()); I have tested my DBAccess with a different object using the String type and I got data back, so I don't think it's my DBAccess code is the problem. Niels Beekman-2 wrote: > > Try to enable debug logging and see if you get results when you manually > execute the generated query. getResult() should definitely be called, so > I think it's either a bug in your setParameter() or the query is wrong. > Could you post your calling Java code too? > > Niels > > -----Original Message----- > From: hett [mailto:[EMAIL PROTECTED] > Sent: woensdag 21 februari 2007 15:53 > To: user-java@ibatis.apache.org > Subject: RE: TypeHandler UUID > > > getResult() is not being called at all, but it does went to > setParameter(). > This is what I have in my resultmap > > <sqlMap namespace="Person"> > > <typeAlias alias="person" type="domain.Person"/> > > <resultMap id="get-all" class="person"> > <result property="id" column="person_id" > typeHandler="domain.UUIDTypeHandler"/> > </resultMap> > > <select id="getPersonById" resultMap="get-all" > parameterClass="java.util.UUID"> > SELECT > * > FROM person > WHERE person_id=#value# > </select> > > </sqlMap> > > > Niels Beekman-2 wrote: >> >> Hi, >> >> Is getResult() being called? If not, try adding an explicit >> javaType="java.util.UUID" to the resultmap. >> >> If I may suggest an optimization: replace getter.getObject() == null >> with getter.wasNull(). >> >> Niels >> >> -----Original Message----- >> From: hett [mailto:[EMAIL PROTECTED] >> Sent: woensdag 21 februari 2007 1:15 >> To: user-java@ibatis.apache.org >> Subject: TypeHandler UUID >> >> >> Hi, I am working with a db that doesn't support UUID, so we specify > the >> id >> column in the db as an nvarchar(36). I follow this example >> > http://opensource.atlassian.com/confluence/oss/display/IBATIS/How+do+I+u >> > se+a+Custom+Type+Handler+with+complex+property+or+Type+Safe+Enumeration >> and created my TypeHandler. >> >> In my person class, I have the following: >> >> public class Person { >> UUID id; >> //get and set method... >> } >> >> and in UUIDTypeHandler: >> >> public class UUIDTypeHandler implements TypeHandlerCallback{ >> >> public Object getResult(ResultGetter getter) throws SQLException >> { >> String value = getter.getString(); >> if(getter.getObject() == null){ >> return null; >> } >> UUID uuid = UUID.fromString(value); >> return uuid; >> } >> >> public void setParameter(ParameterSetter setter, Object >> parameter) throws >> SQLException { >> if(parameter == null){ >> setter.setNull(Types.VARCHAR); >> }else{ >> UUID uuid = (UUID) parameter; >> //System.out.println(uuid.toString()); >> setter.setString(uuid.toString()); >> } >> } >> >> public Object valueOf(String s) { >> return s; >> } >> } >> >> in the sqlmapconfig I added this: >> <typeHandler javaType="java.util.UUID" >> callback="domain.UUIDTypeHandler"/> >> >> I tried to do a select query, but the result is always null, is there >> something else I am missing? >> -- >> View this message in context: >> http://www.nabble.com/TypeHandler-UUID-tf3264136.html#a9073293 >> Sent from the iBATIS - User - Java mailing list archive at Nabble.com. >> >> >> > > -- > View this message in context: > http://www.nabble.com/TypeHandler-UUID-tf3264136.html#a9082175 > Sent from the iBATIS - User - Java mailing list archive at Nabble.com. > > > -- View this message in context: http://www.nabble.com/TypeHandler-UUID-tf3264136.html#a9084307 Sent from the iBATIS - User - Java mailing list archive at Nabble.com.