org.apache.xpath.functions
Class FuncCount

java.lang.Object
  extended by org.apache.xpath.Expression
      extended by org.apache.xpath.functions.Function
          extended by org.apache.xpath.functions.FunctionOneArg
              extended by org.apache.xpath.functions.FuncCount
All Implemented Interfaces:
java.io.Serializable, javax.xml.transform.SourceLocator, ExpressionNode, ExpressionOwner, XPathVisitable

public class FuncCount
extends FunctionOneArg

Execute the Count() function.

See Also:
Serialized Form

Field Summary
(package private) static long serialVersionUID
           
 
Fields inherited from class org.apache.xpath.functions.FunctionOneArg
m_arg0
 
Constructor Summary
FuncCount()
           
 
Method Summary
 XObject execute(XPathContext xctxt)
          Execute the function.
 
Methods inherited from class org.apache.xpath.functions.FunctionOneArg
callArgVisitors, canTraverseOutsideSubtree, checkNumberArgs, deepEquals, fixupVariables, getArg0, getExpression, reportWrongNumberArgs, setArg, setExpression
 
Methods inherited from class org.apache.xpath.functions.Function
callVisitors, postCompileStep
 
Methods inherited from class org.apache.xpath.Expression
asIterator, asIteratorRaw, asNode, assertion, bool, error, execute, execute, execute, executeCharsToContentHandler, exprAddChild, exprGetChild, exprGetNumChildren, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isNodesetExpr, isSameClass, isStableNumber, num, warn, xstr
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

serialVersionUID

static final long serialVersionUID
See Also:
Constant Field Values
Constructor Detail

FuncCount

public FuncCount()
Method Detail

execute

public XObject execute(XPathContext xctxt)
                throws javax.xml.transform.TransformerException
Execute the function. The function must return a valid object.

Overrides:
execute in class Function
Parameters:
xctxt - The current execution context.
Returns:
A valid XObject.
Throws:
javax.xml.transform.TransformerException