org.apache.xalan.xpath
Class Function
java.lang.Object
|
+--org.apache.xalan.xpath.Function
- Direct Known Subclasses:
- FuncBoolean, FuncCeiling, FuncConcat, FuncContains, FuncCount, FuncCurrent, FuncDoc, FuncDoclocation, FuncDocument, FuncExtElementAvailable, FuncExtFunctionAvailable, FuncFalse, FuncFloor, FuncFormatNumb, FuncFormatNumber, FuncGenerateId, FuncId, FuncKey, FuncLang, FuncLast, FuncLoader, FuncLocalPart, FuncNamespace, FuncNormalize, FuncNormalizeSpace, FuncNot, FuncNumber, FuncPosition, FuncQname, FuncRound, FuncStartsWith, FuncString, FuncStringLength, FuncSubstring, FuncSubstringAfter, FuncSubstringBefore, FuncSum, FuncSystemProperty, FuncTranslate, FuncTrue, FuncUnparsedEntityURI
- public abstract class Function
- extends java.lang.Object
**For advanced use only**
This is a superclass of all XPath functions. This allows two
ways for the class to be called. One method is that the
super class processes the arguments and hands the results to
the derived class, the other method is that the derived
class may process it's own arguments, which is faster since
the arguments don't have to be added to an array, but causes
a larger code footprint.
Constructor Summary |
Function()
**For advanced use only** |
Method Summary |
XObject |
execute(XPath path,
XPathSupport execContext,
org.w3c.dom.Node context,
int opPos,
int funcID,
int endFunc)
**For advanced use only** Execute an XPath function object. |
XObject |
execute(XPath path,
XPathSupport execContext,
org.w3c.dom.Node context,
int opPos,
java.util.Vector args)
**For advanced use only** Execute an XPath function object. |
Methods inherited from class java.lang.Object |
equals,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
Function
public Function()
execute
public XObject execute(XPath path,
XPathSupport execContext,
org.w3c.dom.Node context,
int opPos,
java.util.Vector args)
throws org.xml.sax.SAXException
- **For advanced use only** Execute an XPath function object. The function must return
a valid object.
- Parameters:
path
- The executing xpath.context
- The current context.opPos
- The current op position.args
- A list of XObject arguments.- Returns:
- A valid XObject.
execute
public XObject execute(XPath path,
XPathSupport execContext,
org.w3c.dom.Node context,
int opPos,
int funcID,
int endFunc)
throws org.xml.sax.SAXException
- **For advanced use only** Execute an XPath function object. The function must return
a valid object. The function can either override this function,
in which case it must handle executing it's own arguments, or
it can have the functions processed for it and override the
other execute function.
- Parameters:
path
- The executing xpath.context
- The current context.opPos
- The current op position.endFunc
- The op position of the end of the function.- Returns:
- A valid XObject.