/**
*
*
*
*/
package model;

import java.io.Serializable;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;

import org.hibernate.HibernateException;
import org.hibernate.usertype.UserType;

/**
* @author uf
*
*/
public class NullableIntType implements UserType {
   private static final int[] SQL_TYPES = {Types.NUMERIC};
   

   /**
    *
    */
   public NullableIntType() {
      // TODO Auto-generated constructor stub
   }

   /* (non-Javadoc)
    * @see org.hibernate.usertype.UserType#assemble(java.io.Serializable, java.lang.Object)
    */
   public Object assemble(Serializable arg0, Object arg1)
         throws HibernateException {
      // TODO Auto-generated method stub
      return null;
   }

   /* (non-Javadoc)
    * @see org.hibernate.usertype.UserType#deepCopy(java.lang.Object)
    */
   public Object deepCopy(Object obj) throws HibernateException {
      return new Integer(obj.toString());
   }

   /* (non-Javadoc)
    * @see org.hibernate.usertype.UserType#disassemble(java.lang.Object)
    */
   public Serializable disassemble(Object arg0) throws HibernateException {
      // TODO Auto-generated method stub
      return null;
   }

   /* (non-Javadoc)
    * @see org.hibernate.usertype.UserType#equals(java.lang.Object, java.lang.Object)
    */
   public boolean equals(Object x, Object y) throws HibernateException {
      return x == y;
   }

   /* (non-Javadoc)
    * @see org.hibernate.usertype.UserType#hashCode(java.lang.Object)
    */
   public int hashCode(Object x) throws HibernateException {
      return new Integer(x.hashCode());
   }


   /* (non-Javadoc)
    * @see org.hibernate.usertype.UserType#isMutable()
    */
   public boolean isMutable() {
      return false;
   }

   /* (non-Javadoc)
    * @see org.hibernate.usertype.UserType#nullSafeGet(java.sql.ResultSet, java.lang.String[], java.lang.Object)
    */
   public Object nullSafeGet(ResultSet resultSet, String[] names, Object owner)
         throws HibernateException, SQLException {
      if ( resultSet.wasNull() ) return new Integer(0);
      return resultSet.getInt(names[0]);
   }

   /* (non-Javadoc)
    * @see org.hibernate.usertype.UserType#nullSafeSet(java.sql.PreparedStatement, java.lang.Object, int)
    */
   public void nullSafeSet(PreparedStatement statement, Object value, int index)
         throws HibernateException, SQLException {
      if ( value == null ){
         statement.setNull(index, Types.NUMERIC);
      }
      else {
         statement.setInt(index, new Integer(value.toString()));
      }

   }

   /* (non-Javadoc)
    * @see org.hibernate.usertype.UserType#replace(java.lang.Object, java.lang.Object, java.lang.Object)
    */
   public Object replace(Object arg0, Object arg1, Object arg2)
         throws HibernateException {
      // TODO Auto-generated method stub
      return null;
   }

   /* (non-Javadoc)
    * @see org.hibernate.usertype.UserType#returnedClass()
    */
   public Class returnedClass() {
      return int.class;
   }

   /* (non-Javadoc)
    * @see org.hibernate.usertype.UserType#sqlTypes()
    */
   public int[] sqlTypes() {
      return SQL_TYPES;
   }

}