is StylesheetRoot really java.io.Serializable ? 2007-08-01 - By Christine Li
Hi,
It looks like a bug in the code. Please open a bug report for it
http://issues.apache.org/jira/browse/XALANJ
By the way, I did some performance comparison long time ago, it showed
that serialize and deserialize a Template object is slower than regenerate
a Template object from a stylesheet.
If you want to get better performance, you can use XSLTC, you can compile
a stylesheet into a translet (a java class), then you can do
transformation later. More details please refer to
http://xml.apache.org/xalan-j/xsltc_usage.html
Hope it helps,
Christine Li
XSLT Development
IBM Toronto Lab
Tel: (905)413-2601
Email: jycli@(protected)
tiberiu <tiberiu_caprita@(protected)>
01/08/2007 03:42 PM
To
xalan-j-users@(protected)
cc
Subject
is StylesheetRoot really java.io.Serializable ?
Hi, in xalan documentation there is a hint to use Templates and to cache
them, in order to increase performance. I need to cache them on disk, so
that I tried to use (java.io) Serializable interface. The Problem is that
even if StyleSheetRoot (the Templates Object) implements Serializable,
ExtensionNamespaceSupport doesn't. So, trying to save a StylesheetRoot
with xalan2.4.0 crashes, in 2.7.0 I didn't obtain an error but the read
Class from such a File return on method StylesheetRoot.getExtensions() a
null. This null is at the end converted in an "Unknown Error in XPath"
Error because of the following Code from ExtensionsTable class: Vector
extensions = m_sroot.getExtensions(); for (int i = 0; i <
extensions.size(); i++) Without these Extensions the Templates doesn't
know defined Namespaces. My Question is if it is a possibility to
serialize StylesheetRoot in a File, and to can use that serialized form in
order to generate a good Transformer. Thanks for an answer.
View this message in context: is StylesheetRoot really
java.io.Serializable ?
Sent from the Xalan - J - Users mailing list archive at Nabble.com.
<br><font size=2 face="sans-serif">Hi,</font>
<br>
<br><font size=2 face="sans-serif">It looks like a bug in the code. Please
open a bug report for it http://issues.apache.org/jira/browse/XALANJ</font>
<br>
<br><font size=2 face="sans-serif">By the way, I did some performance comparison
long time ago, it showed that serialize and deserialize a Template object
is slower than regenerate a Template object from a stylesheet. </font>
<br>
<br><font size=2 face="sans-serif">If you want to get better performance,
you can use XSLTC, you can compile a stylesheet into a translet (a java
class), then you can do transformation later. More details please refer
to http://xml.apache.org/xalan-j/xsltc_usage.html</font>
<br>
<br><font size=2 face="sans-serif">Hope it helps,</font>
<br>
<br><font size=2 face="sans-serif">Christine Li<br>
XSLT Development<br>
IBM Toronto Lab<br>
Tel: (905)413-2601<br>
Email: jycli@(protected)</font>
<br>
<br>
<br>
<table width=100%>
<tr valign=top>
<td width=40%><font size=1 face="sans-serif"><b>tiberiu <tiberiu_caprita
@(protected)></b>
</font>
<p><font size=1 face="sans-serif">01/08/2007 03:42 PM</font>
<td width=59%>
<table width=100%>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">To</font></div>
<td><font size=1 face="sans-serif">xalan-j-users@(protected)</font>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">cc</font></div>
<td>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">is StylesheetRoot really java.io.Serializable
?</font></table>
<br>
<table>
<tr valign=top>
<td>
<td></table>
<br></table>
<br>
<br>
<br><font size=3>Hi, in xalan documentation there is a hint to use Templates
and to cache them, in order to increase performance. I need to cache them
on disk, so that I tried to use (java.io) Serializable interface. The Problem
is that even if StyleSheetRoot (the Templates Object) implements Serializable,
<i>ExtensionNamespaceSupport</i> doesn't. So, trying to save a StylesheetRoot
with xalan2.4.0 crashes, in 2.7.0 I didn't obtain an error but the read
Class from such a File return on method StylesheetRoot.getExtensions()
a null. This null is at the end converted in an "Unknown Error in
XPath" Error because of the following Code from <i>ExtensionsTable</i>
class: Vector extensions = m_sroot.getExtensions(); for (int i = 0; i <
<i>extensions.size()</i>; i++) Without these Extensions the Templates doesn't
know defined Namespaces. My Question is if it is a possibility to serialize
StylesheetRoot in a File, and to can use that serialized form in order
to generate a good Transformer. Thanks for an answer. <br>
</font>
<hr><font size=3>View this message in context: </font><a href="http://www
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#a11952525"><font size=3 color=blue><u>is
StylesheetRoot really java.io.Serializable ?</u></font></a><font size=3><br>
Sent from the </font><a href="http://www.nabble.com/Xalan---J---Users-f275.html
"><font size=3 color=blue><u>Xalan
- J - Users mailing list archive</u></font></a><font size=3> at Nabble.com.<
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