Overriding mybatis typehandler - mybatis

Question

Im using latest spring boot with spring mybatis which uses mybatis 3.5.9
I have a pojo with a LocalDateTime and the db has a timestamp.. So I would expect mybatis to convert it.. But since, 3.4.1 there was a change to the mybatis LocalDateTimeTypeHandler that causes a unable to conver to TIMESTAMPZ error..
So I grabbed the previous mybatis LocalDateTimeTypeHandler that works with LocalDateTime and added it to my project.. But, not matter what I do I cannot get mybatis to use the type handler..
I currently have for the type handler.
package my.mapper.typehandlers;
import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.time.LocalDateTime;
import org.apache.ibatis.type.BaseTypeHandler;
import org.apache.ibatis.type.JdbcType;
import org.apache.ibatis.type.MappedJdbcTypes;
import org.apache.ibatis.type.MappedTypes;
#MappedJdbcTypes(value=JdbcType.TIMESTAMP)
#MappedTypes(value = LocalDateTime.class)
public class LocalDateTimeTypeHandler extends BaseTypeHandler<LocalDateTime>{
#Override
public void setNonNullParameter(PreparedStatement ps, int i, LocalDateTime parameter, JdbcType jdbcType)
throws SQLException {
ps.setTimestamp(i, Timestamp.valueOf(parameter));
}
#Override
public LocalDateTime getNullableResult(ResultSet rs, String columnName) throws SQLException {
Timestamp timestamp = rs.getTimestamp(columnName);
return getLocalDateTime(timestamp);
}
#Override
public LocalDateTime getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
Timestamp timestamp = rs.getTimestamp(columnIndex);
return getLocalDateTime(timestamp);
}
#Override
public LocalDateTime getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
Timestamp timestamp = cs.getTimestamp(columnIndex);
return getLocalDateTime(timestamp);
}
private static LocalDateTime getLocalDateTime(Timestamp timestamp) {
if (timestamp != null) {
return timestamp.toLocalDateTime();
}
return null;
}
}
and the Results
#Results(id = "statusResult", value = {
#Result(property = "id", column = "id", id = true),
#Result(property = "patientId", column = "patient_id"),
#Result(property = "enqueueDone", column = "enqueue_done"),
#Result(property = "enqueuedTime", column = "enqueued_time")
})
I've tried explicitly setting the typeHandler in the #Result for enqueued_time but the framework still ignores it.
Update: I added
mybatis.type-handlers-package=my.mapper.typehandlers to application.properties. I can hit my break point and it looks all good.. but then mybatis looks like it just call the other LocalDateTimeTypeHandler anyway and I get the TIMEZONEZ error
How can i get mybatis to ignore the mybatis LocalDateTimeTypeHandler?
Thanks

Answer 1

ok, so it's been a long hot day.. So I got this to work..
All I needed to do was set the typeHandler=my.mapper.typehandlers.LocalDateTimeTypeHandler.class in the #Result
#Results(id = "statusResult", value = {
#Result(property = "id", column = "id", id = true),
#Result(property = "patientId", column = "patient_id"),
#Result(property = "enqueueDone", column = "enqueue_done"),
#Result(property = "enqueuedTime", column = "enqueued_time" ,typeHandler=my.mapper.typehandlers.LocalDateTimeTypeHandler.class)
})
and include mybatis.type-handlers-package=my.mapper.typehandlers in the properties file..
I removed
#MappedJdbcTypes(value=JdbcType.TIMESTAMP)
#MappedTypes(value = LocalDateTime.class)
from my LocalDateTimeTypeHandler class since they were not needed..
All works now.