I'll be interested in the responses. We've found significant issues with the factory and build creation as a result of custom classloaders in some servlet engines when using Xalan. One immediate performance boost was to set the appropriate system properties so that the factories use Xerces explicitly rather than searching for resources in jar files and .properties files on disk each time a builder is created.
Rick Bullotta CTO Lighthammer Software (http://www.lighthammer.com) -----Original Message----- From: Vikrant sutar [mailto:[EMAIL PROTECTED] Sent: Monday, September 13, 2004 8:00 PM To: [EMAIL PROTECTED]; xerces-j-dev@xml.apache.org Subject: Correct use of DocumentBuilderFactory & DocumentBuilder : Multithreaded application Hi All, I have a query related to application implementation. We have an application where we load 3 schemas into memory. Now we want to validate 3 different kinds of xmls at run time with appropriate XML Schema. In short our application is multithreaded application. Currently for each request we create NEW instances of DocumentBuilderFactory and DocumentBuilder: DocumentBuilderFactory.newInstance(); DocumentBuilder builder = factory.newDocumentBuilder(); Document document = builder.parse(xml String); With All Schema's cached as a File objects in Singleton class. My question to all of you is: Is it absolutely required to create an instances of "DocumentBuilderFactory and DocumentBuilder" for each request? [as it is performance hit] Is there any way we can create application-wide, 3 instances of DocumentBuilder ,initially and re-use them for all further validation requests for "xml String" ? I guess even synchronization can be performance hit. Please advise me. Thanks a lot for your help /Vikrant __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! http://promotions.yahoo.com/new_mail --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
