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https://issues.apache.org/cayenne/browse/CAY-1080?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13116#action_13116
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Andrey Razumovsky commented on CAY-1080:
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You said paste doesn't work with ObjEntities, does it mean you can copy-paste
anything else?
Correct avaliable flavors for copied Cay object are:
[java.awt.datatransfer.DataFlavor[mimetype=application/x-java-serialized-object;representationclass=java.io.Serializable],
java.awt.datatransfer.DataFlavor[mimetype=application/x-java-serialized-object;representationclass=java.lang.String]]
The first one is Cayenne flavor which enables paste button. I think IOException
may be fine if flavor is not avaliable (however, I get
"java.awt.datatransfer.UnsupportedFlavorException: Cayenne Object" in this
case). That's why I let an exception be swallowed. So I think the problem is
that content doesn't get into clipboard with Cayenne flavor (as
java.io.Serializable). Could be that Mac doesn't support Serializable content,
but I haven't found anything about that in Google.
With my lack of Mac I cannot debug this anyhow, so I can only confirm CCP works
on Win and Linux. I'm afraid we'll have to leave this till later
> Support for copy/paste of entities/attributes/relationships
> -----------------------------------------------------------
>
> Key: CAY-1080
> URL: https://issues.apache.org/cayenne/browse/CAY-1080
> Project: Cayenne
> Issue Type: New Feature
> Components: CayenneModeler GUI
> Affects Versions: 3.0
> Reporter: Andrey Razumovsky
> Assignee: Kevin Menard
> Attachments: 1080.zip, patch-CAY-1080-2.txt
>
>
> Support for copy/paste of entities/attributes/relationships.
> This is GSoC 2008 task.
> Some of my ideas follow.
> We can implement copy-paste in two ways.
> First: the buffer is valid only within a sole project. So when you open
> another project, copied data is lost.
> Second, the buffer is stored in whole modeler application, or even system
> buffer. This allows to copy data between different projects, but is more
> complex because we need to create shallow copies of entities, attrs etc.
> Personally I use only one cayenne.xml currently.
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