Need suggestion on data model

[gokulakanna balakrishnan]

Hi All,

In my application there are message sent from one user to another
user in the system. Users are maintained user node.
And each message are held in message node. I want to track the
messages sent and reply togather.
I am creating relationship following way. Please suggest me my data
model is correct or not.



USER_MESSAGE SENT_AND_REPLAY
User----------------MessageS(Bi-direction relationship)----------------
>ConversationMessage



Please suggest me my data model is correct or not.


Thanks & Regards,
Gokul

[Chris Albertson]

Maybe more simple is to have the users be nodes the the messages are the edges that pint to sender to receiver.  I think this is more natural.  Thisnk of it as saying that "users are related by the =messages they sand to each other."

--

Chris Albertson
Redondo Beach, California

[gokulakanna balakrishnan]

Hi,
outgoing
User A sent message to user B UserA-------->Message

incoming
User B will receive the message. UserB<------Message(attaching)

outgoing
User B replied to User A : UserB------>Message

If user B replied to A is message. New message object will be
created. how to maintain sequence between those messages(conversation
between A and B) in neo4j.

Thanks & Regards,
Gokul

[gokulakanna balakrishnan]

Hi All,

Currently I am working on this model. Please help me create data
model for this kind of scenario.

Thanks & Regards,
Gokul

[Michael Hunger]

The simplest would be to use a timestamp and use that ordering.

Michael

[Chris Albertson]

On Tue, May 29, 2012 at 4:19 PM, Michael Hunger <michael...@neotechnology.com> wrote:

.

>   If user B replied to A is message. New message object will be
> created. how to maintain sequence between those messages

Look at the email headers.  You will find that most of them already have a line that starts "In-Reply-To:" and then has a message ID.  

What you really should do is use this existing email headers.   The chain of "in-reply-to" pointers will do what you want

Likewise if filing measles there are other headers, like sender to "to"  that would make idea links

 

[Duane Nickull]

There are a few things that may affect this.  Are the messages

asynchronous or synchronous?  Are there reliable messaging mechanisms

built into the exchange?  For example,

A-[sends_message]->B get through

A-[sends_message]->B but it gets lost in cyberspace.

B-[sends_message]->A and it gets through // replying to message one

A-[sends_message]->B which is a resend of the first message because if

never received an ack.

...

More to this than meets the eye sometimes.

I worked within OASIS on WS-RX.  YOu might want to read up on this:

http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=ws-rx

THere are some scenarios modelled there that may be of interest.

Duane Nickull

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