Nice start!
I wonder what we can do to scale it to large projects? E.g.:
http://people.apache.org/~aadamchik/class.png
Coincidentally the same issue was discussed on a WebObjects mailing
list today. It is not yet archived, and if I don't forget, I'll
forward the links once it is archived.
Andrus
On Dec 2, 2009, at 4:50 PM, Andrey Razumovsky (JIRA) wrote:
[ https://issues.apache.org/jira/browse/CAY-762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12784856
#action_12784856 ]
Andrey Razumovsky commented on CAY-762:
---------------------------------------
First version is committed on 3.1 trunk and I welcome everyone to
try it.
JGraph 5.13.0.0 is used as graph implementation.
There are two types of diagrams - ER (for DbEntities) and Class (for
ObjEntities). They are avaliable through "Graph" tab of DataDomain
information panel.
What IS done:
* drawing of entities with attributes and relationships between
them, showing arity of rels, inheritance
* quick showing entities in left-hand tree (using right-click
context menu), as well as some basic operation shortcuts
* lazy loading of graphs - they are not created until requested
* layout of firstly opened graph with entities (played a bit with
jgraph layouts, still not sure this is the best one). Note that
opening a large project may result in a complex web of entities
* saving graphs info as <domain_name>.graph.xml (and restoring).
Note that this file will not be used in classic Cayenne runtime
* synchronizing in both sides with left-hand tree
* scaling
* saving models as images
* undo support
What IS NOT done:
* editing objects (e.g. entity names, attrs) in graph
* finding object on the graph from its info panel
* grouping by datamaps (in fact, I've found that standard JGraph
grouping doesn't look well on my models).
Please post your comments
ERDiagram for Object Entities in Cayenne Modeler
------------------------------------------------
Key: CAY-762
URL: https://issues.apache.org/jira/browse/CAY-762
Project: Cayenne
Issue Type: New Feature
Components: CayenneModeler GUI
Affects Versions: 3.0
Reporter: Ahmed Mohombe
Assignee: Andrey Razumovsky
Fix For: 3.1M1
Please add an ER Diagram to the Cayenne Modeler. This is the
feature that I miss the most from WebObjects.
For start it would be even enough to have an ER Diagram View (so
no interactive activities) - just display and layout of entities.
I think this would help allot and would increase the productivity
with CM - most people think visually.
I don't think that it would be complicated to implement, the most
complicated question to answer is what graph library is allowed to
use, due to the restrictive "license compatibility" of the Apache
license.
Thanks in advance,
Ahmed.
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