The _key word_ in your post was custom objects. That signals to me you should use SAX because you will only be maintain one set of objects for what's in the XML. If you use dom you will have the dom objects plus your custom objects created from the dom objects. You can avoid a level of indirection by building your custom objects directly from SAX. The benefits are increased speed and reduced memory consumption (2 of my favorites).
Dane Foster Equity Technology Group, Inc http://www.equitytg.com. 954.360.9800 ----- Original Message ----- From: "Brain, Jim" <[EMAIL PROTECTED]> To: "'Dane Foster'" <[EMAIL PROTECTED]>; "Brain, Jim" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Monday, November 12, 2001 4:01 PM Subject: RE: [dom4j-user] SAX vs DOM4J Well, here is what my code is doing: * I have to parse the entire document, so I know lazy parsing won't help. * I am simply trying to get the document into a set of custom objects I wrote (<app><book><chapter>... int App().Book().Chapter();) * I like the Dom4J way at present, but all of my classes have this big chunk of code in them: void parse(Element element) throws OLifEException { String name; Node node; for ( int i = 0, size = element.nodeCount(); i < size; i++ ) { node = element.node(i); if ( node instanceof Element ) { name=node.getName(); System.out.println("-->" + name); if(name.equals("HoldingKey")) { //setCreationDate(node.getText().trim()); } else if(name.equals("AccountDesignation")) { //setCreationTime(node.getText().trim()); } else if(name.equals("HoldingTypeCode")) { setHoldingTypeCode(OLifE.parseInt(((Element)node).attributeValue("tc").trim( ),"HoldingTypeCode not a number")); . . . Where the loop is the same, but the names differ. I was trying to come up with HashMap type interface, but each element requires something different be done. Some require there be 1 element, some are 0+, some are simple sets, and some are objects that need to be created. I thought about: HashMap.add("AccountDesignation",new JimAction("set","AccountDesignation")); or something to that effect. Where JimAction is a container that can either call a setter, call an Add with the element as the And then JimAction would be the item that handles the chore, but that seems like a lot of JimActions for the code, and would tend to slow it down, I think. Jim Jim Brain, [EMAIL PROTECTED] "Researching tomorrow's decisions today." (319) 369-2070 (work) SYSTEMS ARCHITECT, INDIVIDUAL ITS, LIFE INVESTORS INSURANCE COMPANY OF AMERICA -----Original Message----- From: Dane Foster [mailto:[EMAIL PROTECTED]] Sent: Monday, November 12, 2001 2:57 PM To: Brain, Jim Cc: [EMAIL PROTECTED] Subject: Re: [dom4j-user] SAX vs DOM4J That totaly depends on what your code is doing. Here is my personal rule of thumb. If I don't need random access to the XML or if memory use is prohibitive use SAX, for everything else use dom4j. Dane Foster Equity Technology Group, Inc http://www.equitytg.com. 954.360.9800 ----- Original Message ----- From: "Brain, Jim" <[EMAIL PROTECTED]> To: "DOM4J Mailing List (E-mail)" <[EMAIL PROTECTED]> Sent: Monday, November 12, 2001 3:32 PM Subject: [dom4j-user] SAX vs DOM4J Has anyone done any benchmarking of SAX (Xerces or Aelfred) versus DOM4J? I know DOM is slower, but I like the ease of DOM4J. Is rewriting my code (for performance) into SAX going to save me all that much? Jim Jim Brain, [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> "Researching tomorrow's decisions today." (319) 369-2070 (work) Systems Architect, Individual ITS, Life Investors Insurance Company of America _______________________________________________ dom4j-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dom4j-user _______________________________________________ dom4j-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dom4j-user
