Toby -- Now I'm confused.
As I mentioned, I can't really help with the NPE in FilterExprWalker.getAxis at the moment. I'm very busy and am taking off a few days and trying to get things wrapped up here. I'm not really familiar with the SQL extension so I'd have to do some research there and I just don't have the time at the moment. However, I am very familiar with the support for the extension mechanism within XalanJ itself and so I was offering to help with the BindTest problem that you were having. I don't see this in your XSL file so I presume that this is from some other example. If you'd like to provide that example, I can try to help. Gary > -----Original Message----- > From: Tobias McNulty [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 26, 2002 12:36 PM > To: Gary L Peskin > Cc: [EMAIL PROTECTED] > Subject: RE: SQL Extension > > > Strange -- it should have been there. You can download the > two files from: > > http://www7.xorsis.com > > Thanks, > > Toby > > >Toby -- > > > >I did not receive an attachment. > > > >Gary > > > >> -----Original Message----- > >> From: Tobias McNulty [mailto:[EMAIL PROTECTED] > >> Sent: Tuesday, March 26, 2002 12:18 PM > >> To: Gary L Peskin > >> Cc: John Capehart > >> Subject: RE: SQL Extension > >> > >> > >> Hi Gary, > >> > >> Thanks for volunteering your help. > >> > >> Here is a stack trace and the responsible XSL file. > >> > >> I'm using Xalan-J 2.3.1, just the regular Xalan-J (not > XSLTC). I'm > >> running from the command line with the 'java' command on > Windows 2000 > >> Server. > >> > >> I don't know the rules for posting attachments to the > list; if it is > >> acceptable, do you think you could forward this message to > the list? > >> > >> Thanks, > >> Toby > >> > >> >Toby -- > >> > > >> >I'm afraid the SQL Extension question will have to be > answered by > >> >someone else on the list. However, the Java/XSL language > binding > >> >should be working fine and should not be so "picky". Can > you please > >> >send the stack trace from the original problem along with > the XSL > >> >snippet that generate that problem? If so, I can > probably help. > >> Also, >please let me know what version of XalanJ you're using. > >> Also, are you > >> >using XSLTC or the regular XalanJ? Also, are you > running from the > >> >command line or inside an Application Server or what? > >> > > >> >Thanks, > >> >Gary > >> > > >> >> -----Original Message----- > >> >> From: Tobias McNulty [mailto:[EMAIL PROTECTED] > >> >> Sent: Tuesday, March 26, 2002 11:35 AM > >> >> To: Gary L Peskin > >> >> Cc: John Capehart > >> >> Subject: RE: SQL Extension > >> >> > >> >> > >> >> Gary, > >> >> > >> >> I fixed that problem by changing my XSL to look > something like: > >> >> > >> >> <xsl:stylesheet ... xmlns:bt="com.foo" > >> >> extension-element-prefixes="bt"> > >> >> > >> >> <xsl:variable name="avar" select="bt:BindTest.new()"/> > >> >> <xsl:value-of select="bt:BindTest.myFunc($avar)"/> > >> >> > >> >> The Java binding seems to be very picky. I couldn't get > >> the above > >> >> method to work for certain members of the SQL Extension > >> family. In > >> >> order to access XConnection.query, I had to subclass > >> XConnection and > >> >> make query a static method that took an instance > variable as an > >> >> argument (I _thought_ Java binding was supposed to do this > >> for you > >> >> automatically, but it doesn't seem to do so in all cases). > >> >> > >> >> So I'll ask my original question again: what is the > status of the > >> >> SQL Extension and/or Java/XSL language binding? Are > people using > >> >> it, or is it still in the early stages of development? > >> >> > >> >> Much thanks, > >> >> Toby > >> >> > >> >> >Toby -- > >> >> > > >> >> >Can't help with the sql:new() at the moment. But, what > >> does your > >> >> stack >trace look like from the "Instance method call to > >> method new > >> >> requires > >> >> >an Object instance as first argument" message? > >> >> > > >> >> >Gary > >> >> > > >> >> >> -----Original Message----- > >> >> >> From: Tobias McNulty [mailto:[EMAIL PROTECTED] > >> >> >> Sent: Tuesday, March 26, 2002 9:46 AM > >> >> >> To: [EMAIL PROTECTED] > >> >> >> Subject: Re: SQL Extension > >> >> >> > >> >> >> > >> >> >> >Is anyone out there using the SQL Extension for Xalan? > >> >> I am having > >> >> >> >trouble setting up the XSL to bind to Java objects, and > >> >> the example > >> >> >> >doesn't seem to function (I converted it to use the MySQL > >> >> driver). > >> >> >> >Does anyone have a working example that I could try? > > >> >> >> >In my experience, the example XSL usually > generates obscure > >> >> >> >NullPointerExceptions or TransformerExceptions during the > >> >> >> >transformation. > >> >> >> > > >> >> >> >Thanks, > >> >> >> >Toby > >> >> >> > >> >> >> It appears that sql:new(...) is returning null (which I > >> >> assume is > >> >> >> because it can't find the driver). The driver has > already been > >> >> >> (successfully) loaded in pure Java code using the raw JDBC > >> >> >> functions. Any idea what's going on here? > > > >> >> > >> >> >> > >> >> >> I am also having some trouble calling instance level >> > >> methods from >> >> XSL. I create a new variable like so: > >> >> >> > >> >> > > <xsl:variable name="avar" select="bt:new()"/> > >> >> >> <xsl:value-of select="bt:myFunc($avar)"/> > >> >> >> > >> >> >> Where myfunc is an instance-level function of the class > >> >> referenced > >> >> >> by the bt: namespace: > >> >> >> > >> >> >> <xsl:stylesheet ... xmlns:bt="java:com.foo.BindTest" > >> >> > > extension-element-prefixes="bt"> > >> >> >> > >> >> >> Xalan gives me the following error: > >> >> >> > >> >> >> "Instance method call to method new requires an Object > >> >> instance as > >> >> >> first argument" > >> >> >> > >> >> >> This would lead me to believe that it's trying to call > >> > > new() as an > >> >> >> instance level method, when it is (I _believe_) a > >> static method > >> >> (or >> "pseudo" method, in this case). Do I have to define > >> >> anything on the > >> >> >> Java side to support the method new()? > >> >> >> > >> >> >> Thanks, > >> >> >> Toby > > > >> >> > > > -- > Tobias McNulty > Data Description, Inc. > 840 Hanshaw Road, Suite 9 > Ithaca, NY 14850 > Phone: (607) 257-1000 > E-mail: [EMAIL PROTECTED] > Web: www.datadesk.com >
