While refreshDocumentBuilderFactory is *always* called during initialization, it *may* be called at any time. For example, it may be called to specify the use of a validating parser. While I have never used this capability, it may be useful to someone in the context of the SOAP implementation.
Scott ----- Original Message ----- From: "Emilio Belmonte" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, May 17, 2002 1:35 PM Subject: RE: [PATCH] Re: is SOAP thread-safe? > Actually, from the SOAP implementation point of view, the > refreshDocumentBuilderFactory method doesn't need to be synchronized because > that method is only called once during the servlet init() method (which is > single threaded). A single DocumentBuilderFactory object can be shared as > long as it is used by one thread at a time. Although I would agree with you > that both methods should be synchronized if the class is used in another > context. > > --Emilio > > -----Original Message----- > From: Scott Nichol [mailto:[EMAIL PROTECTED]] > Sent: Friday, May 17, 2002 7:03 PM > To: [EMAIL PROTECTED] > Subject: [PATCH] Re: is SOAP thread-safe? > > > I don't know about whether DocumentBuilderFactory is not thread-safe, but > refreshDocumentBuilderFactory and getXMLDocBuilder need to be synchronized > with > respect to one another, as the former assigns to the dbf member then calls > methods on it to set parsing attributes. The assignment and attribute > setting > should be atomic, right? > > I've attached the trivial patch that changes getXMLDocBuilder to be > synchronized. > > Scott > > ----- Original Message ----- > From: "Emilio Belmonte" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Thursday, May 16, 2002 3:09 PM > Subject: is SOAP thread-safe? > > > > I noticed that this method: > > > > XmlParserUtils.getXMLDocBuilder() > > > > is not synchronized. According to the JAXP documentation, the > > DocumentBuilderFactory class is not thread-safe. Is there any reason for > > not synchronizing it? > > > > Thank you, > > > > --Emilio > > >
