TypeHandlerCallback problem

Fri, 07 Jul 2006 20:45:25 -0700

Hi,
 
If I have an Item.java class that has a complex object
, MonetaryAmount.java as its field. Now for security reason,
fields of MonetaryAmount class has private final fields and
getter methods only, setter methods are empty.
 
Now you can see I have problem using TypeHandlerCallback
to return MonetaryAmount's private final field as setter
method for Currency needs to be empty
 
E.g.
 
public class Item {
 
 private Monetary initialPrice;
 
 // setter and getter for initialPrice
 ....
 
}
 
  and
 
public class MonetaryAmount implements Serializable {
 
 private final BigDecimal value;
 private final Currency currency;
 
 public MonetaryAmount(BigDecimal value, Currency currency) {
  this.value = value;
  this.currency = currency;
 }
 
 public Currency getCurrency() {
  return currency;
 }
 
 public BigDecimal getValue() {
  return value;
 }
    .........
 
 public void setCurrency(Currency currency) {
 }
 
 public void setValue(BigDecimal value) {
 }
 
}
 
so mapping file will look like
 
 <typeAlias alias="item" type="org.auctionfuse.model.Item"/>
 
    <resultMap id="itemResult" class="item">
        <result property="id" column="item_id"/>
  ..
  <!-- initialPrice is MonetaryAmount field -->
        <result property="initialPrice.value" column="initial_price"/> 
        <result property="initialPrice.currency" column="currency"
         typeHandler= "org.auctionfuse.ibatis.typehandler.CurrencyTypeHandler" /> 
  ...   
    </resultMap>
 
where CurrencyTypeHandler implements TypeHandlerCallback and tries to converts
string retrieved from database to Currency object
 
but the problem is setter methods of MonetaryAmount.java simply does nothing
 
I was wandering if anyone has elegant solution in iBatis.
 
Thanks,
 
Sam

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