org.apache.xalan.lib

Class ExsltCommon

java.lang.Object

org.apache.xalan.lib.ExsltCommon

public class ExsltCommon
extends Object

This class contains EXSLT common extension functions. It is accessed by specifying a namespace URI as follows:

    xmlns:exslt="http://exslt.org/common"
 

The documentation for each function has been copied from the relevant EXSLT Implementer page.

See Also:

EXSLT

Constructor Summary

Constructors

Constructor and Description
ExsltCommon()

Method Summary

Modifier and Type	Method and Description
static NodeSet	nodeSet(ExpressionContext myProcessor, Object rtf) The exsl:node-set function converts a result tree fragment (which is what you get when you use the content of xsl:variable rather than its select attribute to give a variable value) into a node set.
static String	objectType(Object obj) The exsl:object-type function returns a string giving the type of the object passed as the argument.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExsltCommon

public ExsltCommon()

Method Detail

objectType

public static String objectType(Object obj)

The exsl:object-type function returns a string giving the type of the object passed as the argument. The possible object types are: 'string', 'number', 'boolean', 'node-set', 'RTF', or 'external'. Most XSLT object types can be coerced to each other without error. However, there are certain coercions that raise errors, most importantly treating anything other than a node set as a node set. Authors of utilities such as named templates or user-defined extension functions may wish to give some flexibility in the parameter and argument values that are accepted by the utility; the exsl:object-type function enables them to do so. The Xalan extensions MethodResolver converts 'object-type' to 'objectType'.

Parameters:

obj - The object to be typed.

Returns:

objectType 'string', 'number', 'boolean', 'node-set', 'RTF', or 'external'.

See Also:

EXSLT

nodeSet

public static NodeSet nodeSet(ExpressionContext myProcessor,
                              Object rtf)

The exsl:node-set function converts a result tree fragment (which is what you get when you use the content of xsl:variable rather than its select attribute to give a variable value) into a node set. This enables you to process the XML that you create within a variable, and therefore do multi-step processing. You can also use this function to turn a string into a text node, which is helpful if you want to pass a string to a function that only accepts a node set. The Xalan extensions MethodResolver converts 'node-set' to 'nodeSet'.

Parameters:

myProcessor - is passed in by the Xalan extension processor

rtf - The result tree fragment to be converted to a node-set.

Returns:

node-set with the contents of the result tree fragment. Note: Already implemented in the xalan namespace as nodeset.

See Also:

EXSLT