Hi Anamaria,
On 01/05/2010 04:50 PM, Anamaria Stoica wrote:
> Hi,
>
> Is it possible to write XWiki components that create new pages without
> having as a dependency the old xwiki core?
>
> Let's say the component currently has the following code snippet:
>
> XWiki xwiki = xwikiContext.getWiki();
> XWikiDocument newDocument = new XWikiDocument();
> newDocument.setFullName(documentName, xwikiContext);
> newDocument.setContent(templateDoc.getContent());
> newDocument.setSyntaxId("xwiki/2.0");
> newDocument.setCreator(xwikiContext.getLocalUser());
> newDocument.setAuthor(xwikiContext.getLocalUser());
> newDocument.setTitle(someString);
>
> xwiki.saveDocument(newDocument, xwikiContext);
In xwiki, when you do getDocument(String docName) you will get a document even
if the document does not exist, you'll get a new one. You can test this by
checking XWikiDocument#isNew().
So, normally it will create a new document if you do
DocumentAccessBridge#getDocument(documentName);
however it should not be saved until a saveDocument() is called on that
document. The way to do this with the bridge is to set values for the
properties
of that document or objects in it and it will be saved. There is no explicit
saveDocument in the bridge because every operation on the bridge should be
'atomic', no operations should leave things changed and not persisted.
I don't really like the approach I just described, because it's very hacky, and
you won't be able to set all the properties you need anyway, you'll need to add
a bunch of functions to the bridge.
>
> How should the code be written so it will be easier to change when the code
> refactoring comes to an end?
What you can do to make things easier for you, is to isolate all the code that
needs to handle storage (creating documents, objects or others) to a single
service in your code, and make only the implementation of that service depend
on
the old core. This way, when the refactoring will all be done, you only need to
change your storage related impl and you're done.
Happy coding,
Anca
>
> Thanks,
> Anamaria
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