jd.xml.xpath.expr.function
Class Sum

java.lang.Object
  extended byjd.xml.xpath.expr.ExpressionImpl
      extended byjd.xml.xpath.expr.NumericExpression
          extended byjd.xml.xpath.expr.function.NumericFunction
              extended byjd.xml.xpath.expr.function.Sum
All Implemented Interfaces:
Expression, Function

public class Sum
extends NumericFunction

Sum represents the xpath core function "number sum(node-set)".


Field Summary
static FunctionType TYPE
           
 
Fields inherited from class jd.xml.xpath.expr.function.NumericFunction
arguments_
 
Fields inherited from interface jd.xml.xpath.expr.function.Function
NULL_ARGUMENTS
 
Fields inherited from interface jd.xml.xpath.expr.Expression
DEP_CONTEXT_NODE, DEP_CONTEXT_POSITION, DEP_CONTEXT_SIZE, DEP_CONTEXT_STATIC, DEP_NONE, DEP_UNKNOWN
 
Constructor Summary
Sum()
           
 
Method Summary
 FunctionType getFunctionType()
          Return the FunctionType of the Function-
 double toNumberValue(XPathContext context)
          Evaluate the function.
 
Methods inherited from class jd.xml.xpath.expr.function.NumericFunction
accept, getArgument, getContextDependencies, setArguments
 
Methods inherited from class jd.xml.xpath.expr.NumericExpression
getResultType, toBooleanValue, toStringValue, toXObject
 
Methods inherited from class jd.xml.xpath.expr.ExpressionImpl
hasContextDependencies, isUniqueFilter, matchesFilter, toNode, toNodeSet, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface jd.xml.xpath.expr.Expression
getResultType, hasContextDependencies, isUniqueFilter, matchesFilter, toBooleanValue, toNode, toNodeSet, toString, toStringValue, toXObject
 

Field Detail

TYPE

public static final FunctionType TYPE
Constructor Detail

Sum

public Sum()
Method Detail

getFunctionType

public FunctionType getFunctionType()
Description copied from interface: Function
Return the FunctionType of the Function-


toNumberValue

public double toNumberValue(XPathContext context)
Evaluate the function.

Specified by:
toNumberValue in interface Expression
Specified by:
toNumberValue in class NumericExpression