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Document properties

Document properties

2004-01-22 - By phil@(protected)

Back

Reply: 1 2 3 4

<html><body>
Hi guys, 
 
I'm wondering if we can natively carry a map of properties into a JDOM Document
(ie: without creating a custom Document class, as documents may be created by
third party code). This capability currently exists in some DOM implementation.
 
 
One use case is with XPath & Namespace. Currently, when using Jaxen, we
have to pass it a context containing the mapping between aliases and URI. And
this can be cumbersome, if you have lot of code located into different places.
Microsoft solved this pb in InfoPath quite elegantly and efficiently, by
allowing user to set a Document property containing the namespace mapping. 
Ex: 
 // The following line is created by
Microsoft Office InfoPath to define the 
 // prefixes for all the known
namespaces in the main XML data file. 
 // Any modification to the form files
made outside of InfoPath 
 // will not be autmatically updated. 
 //<namespacesDefinition>
 
 XDocument.DOM.setProperty("SelectionNamespaces
", 'xmlns:my="http://schemas.microsoft.com/office/infopath/2003/myXSD
"); 
 //</namespacesDefinition> 
 
And their XPath engine automatically uses this property if available, letting a
user write an XPath using 'my:' prefix, without worrying on the mapping, set
once for all queries. 
 
We want to implement such a facility in our framework, but are not able
currently to set a custom property to a Document. Don't you think adding a
HashMap (left null if not used) is possible? It can have many other use cases..
. 
 
Thanks, 
 
Phil.</body></html>

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