org.exolab.adaptx.xpath.functions

Class NumberFunctionCall

java.lang.Object

org.exolab.adaptx.xpath.expressions.PrimaryExpr

org.exolab.adaptx.xpath.expressions.FunctionCall

org.exolab.adaptx.xpath.functions.FunctionCallImpl

org.exolab.adaptx.xpath.functions.NumberFunctionCall

All Implemented Interfaces:

Parameters, XPathExpression

public class NumberFunctionCall
extends FunctionCallImpl

A class that represents the following Function calls:
number(); floor(); round(); ceiling();

Version:

$Revision: 3736 $ $Date: 2003-05-13 03:57:04 -0400 (Tue, 13 May 2003) $

Author:

Keith Visco

Field Summary

Fields

Modifier and Type	Field and Description
static short	CEILING
static short	FLOOR
static short	NUMBER
static short	ROUND

Fields inherited from class org.exolab.adaptx.xpath.functions.FunctionCallImpl

INVALID_NUMBER_PARAMS, INVALID_RESULT

Fields inherited from class org.exolab.adaptx.xpath.expressions.PrimaryExpr

EXPR, FUNCTION_CALL, LITERAL, VARIABLE_REFERENCE

Fields inherited from interface org.exolab.adaptx.xpath.XPathExpression

BOOLEAN, ERROR, FILTER_EXPR, LOCATION_PATH, NODE_TEST, PATH_EXPR, PRIMARY, STEP, STRING, UNION_EXPR

Constructor Summary

Constructors

Constructor and Description
NumberFunctionCall() Creates a new NumberFunctionCall
NumberFunctionCall(short type) Creates a new NumberFunctionCall using the given type

Method Summary

Methods

Modifier and Type	Method and Description
XPathResult	evaluate(XPathContext context) Evaluates the expression and returns the XPath result.

Methods inherited from class org.exolab.adaptx.xpath.functions.FunctionCallImpl

addParameter, getFunctionName, getParameter, getParameterCount, toString

Methods inherited from class org.exolab.adaptx.xpath.expressions.PrimaryExpr

getExprType, getType

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

NUMBER

public static final short NUMBER

See Also:

Constant Field Values

ROUND

public static final short ROUND

See Also:

Constant Field Values

FLOOR

public static final short FLOOR

See Also:

Constant Field Values

CEILING

public static final short CEILING

See Also:

Constant Field Values

Constructor Detail

NumberFunctionCall

public NumberFunctionCall()

Creates a new NumberFunctionCall

NumberFunctionCall

public NumberFunctionCall(short type)

Creates a new NumberFunctionCall using the given type

Method Detail

evaluate

public XPathResult evaluate(XPathContext context)
                     throws XPathException

Evaluates the expression and returns the XPath result.

Parameters:

context - The XPathContext to use during evaluation.

Returns:

The XPathResult (not null).

Throws:

XPathException - if an error occured while evaluating this expression.