Hi,
On 3/24/07, Brian Thompson <[EMAIL PROTECTED]> wrote:
Comments interleaved below:
Oh, one other thing: In your model, do you ever expect the same image
to be attached to multiple BlogEntries?
Nope, Same image will not be attached to multiple Blog Entires. But if it
is the case, as I understood I should use property of reference type in the
blog entry which references to a image attachment. Is that the way to handle
it ?
I went through the Node Type sections of the Jackrabbit site and also 6.7Node
Types of the JSR 170 specification. As I understood,
A node type defines the Child nodes and properties it may ( or must ) have.
Primary node type must be subtype of either primary or a mixin type and
mixin type may have a super type and it is not a must.
I have few questions and some of them may be obsolete. But I listed them
down as it is always better have a discussion and get things clarified.
1.) In naming node types and properties, do we follow the naming conventions
used in Java ?
Eg. myFristType
2.) What is purpose mixin node type ? Purpose of primary node is to define
the structure of the node as I understood. What is the advantage of adding
some properties or child nodes via mixin types to a node ?
3.) What is the purpose of primary item of a node type?
4.) In a property definition, in Required Type, what does NAME, PATH types
mean ?
5.) Is int supported as a property type ? It is not listed under the
property_type in the grammer.
6.) How to we constraint a property of a node to be unique ( like a primary
key in RDBMS ) ?
As you proposed, if we change the hierarchy like this,
- Users
- Year
- Month
- Date
- Blog Entry
- Comment
- Rate
- Image Attachment
In CND notation,
<blog = 'http://jackrabbit.apache.org/jackrabbit-jcr-demo/1.0'>
<mix = 'http://www.jcp.org/jcr/mix/1.0'>
[blog:user] > mix:referenceable
- blog:userID (long) mandatory
- blog:nickName (string) mandatory
- blog:email (string) mandatory
- blog:password (string) mandatory
+ blog:year [blog:year] multiple
[blog:year]
- blog:year (long) mandatory
+ blog:month [blog:month] multiple
[blog:date]
- blog:date (date)
+ blog:blogEntry [blog:blogEntry] multiple
[blog:blogEntry]
- blog:blogEntryID (long) mandatory
- blog:content (string) mandatory
- blog:image (binay) multiple
- blog:rate (long)
- blog:dateCreated (date) mandatory
+ blog:comment [blog:comment] multiple
[blog:comment]
- blog:commentID (long) mandatory
- commenterID (reference) mandatory < blog:user
- blog:content (string) mandatory
- blog:dateCreated (date) mandatory
