Hi, I have a question. I have a class 'X' and I want to it persist in table 'Y', but table 'Y' have a extra column that must have certain value. What do write in xml file?

Class 'X' Table 'Y'
private int a; -> column a;
private int b; -> column b;
column c; How indicate that this column must have, for
instance, the value 8?

Thanks and sorry my english.

use not-null="true" attribute in ur column tag in hibernate mapping file.

But how indicate that the value is 8?

column = "columnC" not-null = "true" value="8 ???

default="8"

file.xml
...
...
<class name="classX"
table="tableY"
...
...
<property name="a" column="columnA" type="integer/>
<property name="b" column="columnC" type="integer/>

How and where write column="columnC" not-null="true" default="8"?
Remember that the class "X" hasn´t attribute "c".

Very thanks.

You can't map a the 'columnC' in your hbm.xml file unless you also have a getter/setter for it in your 'X' class (*). I think the easiest way to solve this is at the database level. Eg. in your CREATE TABLE statement you should have something like:



* There are possibilities to overcome this by implementing a custom PropertyAccessor and specifying this in the 'access' attribute of the property definition for columnC.



The use of a custom property accessor makes Hibernate call this instead of trying to call X.setC() and X.getC(). Check the Hibernate documentation for more info: http://www.hibernate.org/hib_docs/v3/re ... n-property and http://www.hibernate.org/hib_docs/v3/ap ... essor.html

Can you please trry it using:


-thanks,
dip