I have this mapping:
<component
name="comp"
class="eg.MyComponent"
>

<property
name="myProperty"
type="java.lang.String"
update="true"
insert="false"
column="COL"
not-null="false"
/>

...

</component>

I don't understand the reason of this exception: why have I to map in a component the same value for the attributes property's "insert" and "update"?

Could not compile the mapping document
net.sf.hibernate.MappingException: insert="false", update="false" not supported for properties of components: myProperty

hi,

if I understood your question right, you want to know at the first part of your question why you can say update = true, insert = false

simple example to explain this

you had an user with an adress this user cannot say I want to have a second adress (Insert into adresses values (....)) but it's allow to update his adress. (Update adress set "street" = ? where "id" = ?)

thats the reason, for your second part I don't know the right answer

Excuse me for my bad english, but I have only one question:

This mapping:
<component
name="comp"
class="eg.MyComponent"
>

<property
name="myProperty"
type="java.lang.String"
update="true"
insert="false"
column="COL"
not-null="false"
/>

...

</component>


give me this exception:

Could not compile the mapping document
net.sf.hibernate.MappingException: insert="false", update="false" not supported for properties of components: myProperty

WHY?

whats about a database table? sorry using only hibernate with xdoclet. so the mapping files are generated automaticly

Look the DTD for hibernate mapping files

<!ELEMENT property (meta*,column*)>
<!ATTLIST property name CDATA #REQUIRED>
<!ATTLIST property access CDATA #IMPLIED>
<!ATTLIST property type CDATA #IMPLIED>
<!ATTLIST property column CDATA #IMPLIED>
<!ATTLIST property length CDATA #IMPLIED>
<!ATTLIST property not-null (true|false) "false">
<!ATTLIST property unique (true|false) "false">
<!ATTLIST property update (true|false) "true"> <!-- only supported for properties of a class (not component) -->
<!ATTLIST property insert (true|false) "true"> <!-- only supported for properties of a class (not component) -->
<!ATTLIST property formula CDATA #IMPLIED> <!-- only supported for properties of a class (not component) -->


So you have an error in your mapping file

Thank you.

Why the ATTLIST insert and update aren't supported for properties of a component?

oh, I learned a lot