public class Extensions extends Object
xmlns:xalan="http://xml.apache.org/xalan"
Modifier and Type | Method and Description |
---|---|
static Node |
checkEnvironment(ExpressionContext myContext)
Return a Node of basic debugging information from the
EnvironmentCheck utility about the Java environment.
|
static NodeList |
difference(NodeList nl1,
NodeList nl2)
Returns the difference between two node-sets.
|
static NodeList |
distinct(NodeList nl)
Returns node-set containing distinct string values.
|
static XObject |
evaluate(ExpressionContext myContext,
String xpathExpr)
Returns the result of evaluating the argument as a string containing
an XPath expression.
|
static boolean |
hasSameNodes(NodeList nl1,
NodeList nl2)
Returns true if both node-sets contain the same set of nodes.
|
static NodeList |
intersection(NodeList nl1,
NodeList nl2)
Returns the intersection of two node-sets.
|
static NodeSet |
nodeset(ExpressionContext myProcessor,
Object rtf)
This method is an extension that implements as a Xalan extension
the node-set function also found in xt and saxon.
|
static NodeList |
tokenize(String toTokenize)
Returns a NodeSet containing one text node for each token in the first argument.
|
static NodeList |
tokenize(String toTokenize,
String delims)
Returns a NodeSet containing one text node for each token in the first argument.
|
public static NodeSet nodeset(ExpressionContext myProcessor, Object rtf)
nodeset
returns a node-set consisting of a single root node as described in
section 11.1 of the XSLT 1.0 Recommendation. If the argument is a
node-set, nodeset
returns a node-set. If the argument
is a string, number, or boolean, then nodeset
returns
a node-set consisting of a single root node with a single text node
child that is the result of calling the XPath string() function on the
passed parameter. If the argument is anything else, then a node-set
is returned consisting of a single root node with a single text node
child that is the result of calling the java toString()
method on the passed argument.
Most of the
actual work here is done in MethodResolver
and
XRTreeFrag
.myProcessor
- Context passed by the extension processorrtf
- Argument in the stylesheet to the nodeset extension function
NEEDSDOC ($objectName$) @returnpublic static NodeList intersection(NodeList nl1, NodeList nl2)
nl1
- NodeList for first node-setnl2
- NodeList for second node-setpublic static NodeList difference(NodeList nl1, NodeList nl2)
nl1
- NodeList for first node-setnl2
- NodeList for second node-setpublic static NodeList distinct(NodeList nl)
nl
- NodeList for node-setpublic static boolean hasSameNodes(NodeList nl1, NodeList nl2)
nl1
- NodeList for first node-setnl2
- NodeList for second node-setpublic static XObject evaluate(ExpressionContext myContext, String xpathExpr) throws SAXNotSupportedException
myContext
- an ExpressionContext
passed in by the
extension mechanism. This must be an XPathContext.xpathExpr
- The XPath expression to be evaluated.SAXNotSupportedException
- Note: The usage of this extension function in the xalan namespace
is deprecated. Please use the same function in the EXSLT dynamic extension
(http://exslt.org/dynamic).public static NodeList tokenize(String toTokenize, String delims)
StringTokenizer
.
If the first argument is an empty string or contains only delimiters, the result
will be an empty NodeSet.
Contributed to XalanJ1 by Benoit Cerrina.toTokenize
- The string to be split into text tokens.delims
- The delimiters to use.public static NodeList tokenize(String toTokenize)
StringTokenizer
.
If the first argument is an empty string or contains only delimiters, the result
will be an empty NodeSet.
Contributed to XalanJ1 by Benoit Cerrina.toTokenize
- The string to be split into text tokens.public static Node checkEnvironment(ExpressionContext myContext)
Simply calls the EnvironmentCheck
utility to grab info about the Java environment and CLASSPATH,
etc., and then returns the resulting Node. Stylesheets can
then maniuplate this data or simply xsl:copy-of the Node. Note
that we first attempt to load the more advanced
org.apache.env.Which utility by reflection; only if that fails
to we still use the internal version. Which is available from
http://xml.apache.org/commons/.
We throw a WrappedRuntimeException in the unlikely case that reading information from the environment throws us an exception. (Is this really the best thing to do?)
myContext
- an ExpressionContext
passed in by the
extension mechanism. This must be an XPathContext.Copyright © 2017 JBoss by Red Hat. All rights reserved.