Hi All,

I am new to hibernate and trying to figure out how 1-to-1 and 1-to-many relationships can be represented in hibernate config, if I want to put the parent id in child row without child object storing a reference to parentId. Let me explain with an example:
Lets say I have an object model as below:

public class Stock {

private Integer stockId;
private String stockCode;
private String stockName;
private StockDetail stockDetail;
//getters and setters
}

public class StockDetail
{
private String compName;
private String compDesc;
//getters and setters
}

Here, I think there is a unidirectional 1-to-1 association between Stock and StockDetail objects, and StockDetail does not have a reference back to Stock.

I want to store this in the following tables:

Stock
---------
stockId (PK)
stockCode
stockName

and

StockDetail
------------
stockId (PK) [Foreign key to Stock table too, so the stockId is the same as the stockId in the Stock table for a Stock Object]
compName
compDesc


I tried to get the stockId in StockDetail table from Stock Object, but am not sure how it can be done. Here is the hibernate config I have:


<hibernate-mapping>
<class name="stocks.Stock" table="Stock">
<id name="stockId" type="java.lang.Integer">
<column name="STOCK_ID" />
<generator class="assigned" />
</id>
<property name="stockCode" type="string" column="stockCode"/>
<property name="stockName" type="string" column="stockName"/>
<one-to-one name="stockDetail" class="stocks.StockDetail" cascade="save-update"></one-to-one>
</class>

<class name="stocks.StockDetail" table="StockDetail">
<id name="stockId" type="java.lang.Integer">
<column name="stockId" />
<generator class="foreign">
<param name="property">stock</param>
</generator>
</id>
<property name="compName" column="compName"/>
<property name="compDesc" column="compDesc"/>
</class>
</hibernate-mapping>

I am getting the following error: "Could not find a getter for stockId in class stocks.StockDetail". I was hoping hibernate would automatically look for stockId property in Stock object due to foreign key constraint. Can someone please help me with getting this working? I am trying to represent the implicit reference connection (between Stock and StockDetail objects) as foreign key in StockDetail table.

Thanks in advance,
Malay