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From Emmanuel Lecharny <>
Subject Re: [Schema] How do I write a new ObjectClass to ApacheDS
Date Wed, 28 Mar 2007 20:33:35 GMT
Hi Ole,

not sure I understand exactly what you want to do, but first, you should 
and the children pages, they explain what is the current status of the 
Schema system in ADS 1.5.

Now, you have to know that ObjectClasses and AttributTypes are just 
considered as normal entries by the server, so you can simply use 
BasicAttributes() to store your newly created ObjectClass, wih all the 
meta attributes needed to describe your objectclasses (see the xiki 
pages above, there is an example of conversion for core.schema)

Hope it helps.

Ole Ersoy a écrit :

> Hey Guys,
> I'm in the middle of designing the DAS and
> decided that I can probably make it way more efficient
> if I create an ObjectClass per Java Class that I want to write to
> ADS.
> So how do I programmatically create a ObjectClass and store it
> in ApacheDS?
> Do we have a description somewhere or is this a standard JNDI thing?
> Here's a little further elaboration on what I want to do for those 
> interested.
> Keep in mind this is just an example.  The Class User could be any 
> java class used in a model.
> I have a Java Class >> User
> The Class User has String members [firstName, lastName, password]
> So I want to create a Structural ObjectClass in ApacheDS so that
> I can add it as an attribute to the DN where a User instance will be 
> stored (The java object instance).
> If I were doing this in a relational database, I would create a table 
> definition instead of a ObjectClass.
> So I'm looking for something like this:
> ObjectClass objectClass = LDAPSchemaFactory.createObjectClass();
> objectClass.setName("User");
> ObjectClassAttribute objectClassAttribute = 
> LDAPSchemaFactory.createObjectClassAttribute();
> objectClassAttribute.setName("firstName");
> objectClassAttribute.setType(LDAP_STRING_ATTRIBUTE_TYPE);
> Then I would do something like:
> ctx.storeObjectClass(objectClass);
> The objectClass can now be assigned as an attribute to an ADS entry,
> and if we were to look at all the ObjectClasses in ADS through 
> JXPlorer or LDAP Studio,
> we would see the User ObjectClass in the list.
> Does that make sense?
> Thanks,
> - Ole

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