Hi,
I am trying to implement a hibernate UserType for all the monetary
amounts in my application. I follow the example given in "Manning - Java
Persistence with Hibernate" Chapter 5.3 .
I am having difficulties to set and retrieve the value from a jsp due to
a lack of understanding how this is handled. I assume it is related to OGNL.
Basically I am trying the following:
addBid.jsp:
<s:textfield key="bid.amount" /> ( also tried: <s:textfield
key="bid.amount.amount" /> )
Mapping:
@org.hibernate.annotations.Type ( type=
"com.app.persistence.MonetaryUserType" )
@Column( name="amount" )
public Monetary getAmount() { return amount; }
and Monetary beeing:
public class Monetary implements Serializable{
private final BigDecimal amount;
private final Currency currency;
public Monetary(BigDecimal amount, Currency currency) {
this.amount = amount;
this.currency = currency;
}
public BigDecimal getAmount() { return amount; }
public Currency getCurrency() { return currency; }
I am getting either a field error or with "bid.amount.amount" :
ERROR [btpool0-2] InstantiatingNullHandler.nullPropertyValue(110) |
Could not create and/or set value back on to object
java.lang.InstantiationException: com.app.model.Monetary
What am I doing wrong? What is this
InstantiatingNullHandler.nullPropertyValue and how to trac it down?
Thanks and kind regards
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