org.apache.xalan.lib
public class Extensions extends Object
xmlns:xalan="http://xml.apache.org/xalan"
UNKNOWN: general
Method Summary | |
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static Node | checkEnvironment(ExpressionContext myContext)
Return a Node of basic debugging information from the
EnvironmentCheck utility about the Java environment.
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static NodeList | difference(NodeList nl1, NodeList nl2)
Returns the difference between two node-sets.
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static NodeList | distinct(NodeList nl)
Returns node-set containing distinct string values.
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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.
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static NodeList | intersection(NodeList nl1, NodeList nl2)
Returns the intersection of two node-sets.
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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.
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static NodeList | tokenize(String toTokenize, String delims)
Returns a NodeSet containing one text node for each token in the first argument.
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static NodeList | tokenize(String toTokenize)
Returns a NodeSet containing one text node for each token in the first argument.
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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?)
Parameters: myContext an ExpressionContext
passed in by the
extension mechanism. This must be an XPathContext.
Returns: a Node as described above.
Parameters: nl1 NodeList for first node-set nl2 NodeList for second node-set
Returns: a NodeList containing the nodes in nl1 that are not in nl2 Note: The usage of this extension function in the xalan namespace is deprecated. Please use the same function in the EXSLT sets extension (http://exslt.org/sets).
Parameters: nl NodeList for node-set
Returns: a NodeList with nodes from nl containing distinct string values. In other words, if more than one node in nl contains the same string value, only include the first such node found. Note: The usage of this extension function in the xalan namespace is deprecated. Please use the same function in the EXSLT sets extension (http://exslt.org/sets).
Parameters: myContext an ExpressionContext
passed in by the
extension mechanism. This must be an XPathContext. xpathExpr The XPath expression to be evaluated.
Returns: the XObject resulting from evaluating the XPath
Throws: 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).
Parameters: nl1 NodeList for first node-set nl2 NodeList for second node-set
Returns: true if nl1 and nl2 contain exactly the same set of nodes.
Parameters: nl1 NodeList for first node-set nl2 NodeList for second node-set
Returns: a NodeList containing the nodes in nl1 that are also in nl2 Note: The usage of this extension function in the xalan namespace is deprecated. Please use the same function in the EXSLT sets extension (http://exslt.org/sets).
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
.Parameters: myProcessor Context passed by the extension processor rtf Argument in the stylesheet to the nodeset extension function NEEDSDOC ($objectName$) @return
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.
Parameters: toTokenize The string to be split into text tokens. delims The delimiters to use.
Returns: a NodeSet as described above.
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.
Parameters: toTokenize The string to be split into text tokens.
Returns: a NodeSet as described above.