Association between Jcheckboxes and lines of JTable

Hello everybody,
I would like to add a JChekBox to each line of my JTable knowing that the number of lines is given only at the time of the execution. The problem is that the contructor of JscrollPane can take only one JComponent in parameters:
JScrollPane scrollpane=new JScrollPane(MyJTable);
How can I make association line-JChekBox dynamically.
I m waiting for your answers impatiently.
Thank you for being attentive

I don't understand your question. You where given a link to the JTable tutorial, that showed you how to add check boxes to the table.
This is done by adding Boolean values to the TableModel. So once you know the number of rows in the table you create a simple loop and do:
table.setValueAt(row, new Boolean(true) );

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Are there two type of associations between objects or are there just different representations?

I've been spending some time on 're-tuning' some of my OOP understanding, and I've come up against a concept that is confusing me.
Lets say I have two objects. A user object
and an account object.
Back to basics here, but each object has state, behaviour and identity (often referred to as an entity object).
The user object
manages behaviour purely associated with a user, for example we could have a login(credentials) method
that returns if successfully logged in or throws exception if not.
The account object
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which would make it inactive. It returns if checks pass, or throws exception if not.
Now here lies my problem. There is clearly a relationship between user and account,
but I feel that there are actually two TYPES of association to consider. One that is data driven (exists only in the data/state of the objects and the database) and one that is behaviour driven (represents an object call to methods of the associated object).
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In the example I have presented, there is clearly a data association between user and account.
In a database schema we could have the following table:
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id
user_id
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Behaviour driven associations are really the dependencies of an object. If object A calls methods on object B there is an association going from A to B. A holds an object representation of B.
In my example case, neither the user object
nor the account object
depend on each other to perform their tasks i.e. neither object calls methods on the other object. There is therefore no behaviour driven association between the two and neither object holds an object reference to the other.
Question
Is the case I presented purely a case of entity representation? The association between user and account is
always present, but its being represented in different ways?
ie. the user entity
has an identity that can be represented in different forms. It can be represented as an object (the instantiated user object)
or as a unique integer from the users table in the databases.
Is this a formalised way of recognising different implementations of associations or have I completely lost my mind?
One thing that bugs me is how would I describe the differences in UML or similar? Or is it just an implementation detail?

It s a bit hard to fully understand what is problem actually in :). I think you are a bit mixing some concepts.
Entities representation
At first, all models we are implementing is just a simplification of some real-world objects and environment. Your conceptual entity user corresponds to some real user and contains some attributes we are intresteing in according to application needs. Thus there
are some models we have to implement.
Thus, all user defined by DB schema, user defined by class, and probably user defined by some presentation logic is normally present some real-world user. It is only about implementation purposes, we have to store, view and manipulate with user.
On the other hand let's take a look on Single Responsibility Principle. It tells us to use every class or program unit just for certain needs. Using single user (class or program unit) for storage and presentation needs violates this principles.
the user entity has an identity that can be represented in different forms. It can be represented as an object (the instantiated user object) or as a unique integer from the users table in the
databases.
So, the answer is yes.
Associations and dependencies
I think it is more about terminology than about nature of problem. But in general you are right - there are different types of object realtions (especially, I will use other terms to list it). For example "referencing", "creation", "using",
"coordinating", "storing", "inheriting" (!) ....
According to this, user instance references account instance. And A instance uses B instance.
For most cases it is good enough to distinguish just "referencing" and "using". It is what you've just written. It's enough common and abstract to be understood by other person when talking about domain, e.g.
But sometimes, to emphasize some aspects you should describe relations in a way like "A dispatches ensemble of Bs" or "R stores X to database". It's more applicable for specification and modelling.
Is this a formalised way of recognising different implementations of associations or have I completely lost my mind?
To call something formalized I suggest to look at UML.
UML and other modelling instruments
One thing that bugs me is how would I describe the differences in UML or similar? Or is it just an implementation detail?
There are a lot of UML models (diagrams). Let's take a look at most well-known - Classes and Objects Diagram.
It's interesting that UML allows to present all type of object relations, and moreover allows to decide "is it just an implementation detail".
Martin Fowler describes 3 levels (or point of views) of understanding of Classes Diagram.
Conceptual. Diagram is considered as high-level domain model, independent from implementation.
Specification. Diagram is considered as high-level realization model containing of interfaces.
Implementation. Diagram is considered as low-level technical paper containing interfaces, classes, references, other types of relations.
Is this a formalised way of recognising different implementations of associations or have I completely lost my mind?
Yes, you have to fix some point of view and choose appropriate relations set.
For example, let's take a look at Classes Diagram and consider it from an implementation point of view. UML defines 3 type of relations (and propose corresponding means to its designation):
Association
Association corresponds "referencing" between instances.
Dependency
Dependency combines all types of relations such as "using", "creating", "storing", etc.
Inheritance.
Inheritances as a fundamental OOP instrument is presented by UML in a distinct way. It's more about classes than about instances, but also one can say that A instance inherit attributes of B instance. So, that's ok.
First and second points of view on Class Diagram, as I remember uses only one type of relation unifying both associations and dependencies and is designated like association (no inheritance, of course).
Also, UML proposes Objects Diagram which is same to Classes Diagram, but fits better for runtime modelling needs.
Finally, a choice of a set of relations taken into consideration depends on a context and point of view. UML provides some ones.

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Hi Gurus,
I have a requirement in which i need to display quantity and amount at schedule line level and also the delivery and delivery item for each schedule line.
For example, if there is a sales order O1 and item 10 for which we have 3 schedule lines and 3 deliveries as well say D1, D2 and D3.
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How can i determine that a particular delivery corresponds to which schedule line of that saler order-item?
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Hi,
I suppose you must check with SD functional consultant and the post should also be in the logistics SD forum and not BI. But I suppose there is know specific link between the schedule line of SO to the Delivery. It is more like a bucket flow for ex.
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Ashwin G

Is there a DIRECT link between SD schedule lines and delivery lines?

Is there a direct link (db table) between schedule lines on a sales order (VBEP) and the delivery lines (LIPS)?
Is there a function module to retrieve the data?
Example-
One order line with 3 schedule lines.
Each schedule line is for 2 units (total of 6 units).
Three deliveries made. 1st is for 2 units, 2nd is for 1 unit (backorder), 3rd is for 3 units.
You can use document flow (table VBFA) or examine the SD document in the delivery line (LIPS) and link the delivery line to the order line. The schedule line already references the order line.
I am using math to decrement the schedule lines used and make the link between VBEP and LIPS. It works fine. I need four records back....
1st schedule line for 2 units uses delivery 123
2nd schedule line for 1 unit (partial) uses delivery 124
2nd schedule line for 1 unit (partial) uses delivery 125
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Like I said, it works. Just wondering if I missed a more direct link.

As far as Db link is concern , I dont remember exactly , but 3 years before I had written a report which see Sales order schedule lines and devilry note lines against sales order. If you see process wise. when ever you create PO ( production order you assign some qty using 101 movement type .. and against production order you also give sales order . When you do delivery ( run seclude run ) it delivers against that material number , its movement is 601 ...
but I remember theres a link between these tables, VBAP,VBFA AND VBEP , LIPS ... against every sales order you can see sales invoice ( VBRP,VBRK) and you can also see your delivery note number in document flow .
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Hi
I would like to find the link between the Schedule Lines (of Scheduling Agreement) and the GR document. i.e. which GR has been made against which Schedule Line. I have checked the tables EKET, EKBE, MSEG but there is no link with the Schedule Line, I found the link only with the item number there.
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Prashanth

Hi
At the time of posting the GR for a SA you will be not posting this with reference to the Schedule line of the SA item. So system will always update the GR document against the SA item and update qty on the schedule line.
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Thanks & Regards
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Link between Delivery schedule line counter from PO and the material docume

Dear Gurus,
I have one PO with single line item having delivery schedule -
Material 1 -
delivery schedule 01.01.2009     2000
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I have received quantity against this Po
I want to know where I can find the link between Delivery schedule line counter from PO and the material document
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There is no link from the MAterial document line item (Table Mseg) to the PO Schedule Line (EKET).
If this is for Evaluating an on time delivery or GR, you may consider the following approach.
PO details Po Date QTY
Sch1   01Jun2009   200
SCH2 08Jun2009   100
GR Details
GR1   01Jun2009   180
GR2   07Jun2009   110
GR3 09Jun2009      10
Calculate a *** total qty for the PO Line.
PO details Po Date CUMUL QTY
Sch1   01Jun2009   200
SCH2 08Jun2009   300
Calculate a *** total qty for the ontime GR.
PO details Po Date CUMUL PO QTY CUMUL GR on time
Sch1   01Jun2009   200                180
SCH2 08Jun2009   300                 290 (180+110) the 3rd GR was too late
Evaluate the PO SChedule Lines as follows:
Po SCL qty + CUMUL GR QTY - CUMUL PO QTY = ADJ GR ON Time Qty
SCH1 01Jun2009
200 + 180 - 200 = 180 on time for 01Jun2009 date ( 90% fill rate)
SCH2 08Jun2009
100 + 290 - 300 = 90 on time for 08Jun2009 date (90 % fill rate) the first 20 of the GR on 07Jun2009 went to fill the late, early date.
Best of luck !
SCH2 100 +290 - 300 = 90 on time for 07Jun2009 date

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Association between Jcheckboxes and lines of JTable

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