org.exolab.adaptx.xpath.functions

Class FunctionCallImpl

java.lang.Object

org.exolab.adaptx.xpath.expressions.PrimaryExpr

org.exolab.adaptx.xpath.expressions.FunctionCall

org.exolab.adaptx.xpath.functions.FunctionCallImpl

All Implemented Interfaces:

Parameters, XPathExpression

Direct Known Subclasses:

BooleanFunctionCall, Concat, Contains, CountFunctionCall, ErrorFunctionCall, ExtensionFunctionCall, FalseFunctionCall, FormatNumber, IdFunctionCall, IdRefFunctionCall, LangFunctionCall, LastFunctionCall, Normalize, NotFunctionCall, NumberFunctionCall, PositionFunctionCall, StartsWith, StringFunctionCall, StringLength, Substring, SubstringAfter, SubstringBefore, SumFunctionCall, TextFunctionCall, Translate, TrueFunctionCall, XMLNamesFunctionCall

public abstract class FunctionCallImpl
extends FunctionCall
implements Parameters

An abstract class representing an XPath function call

Version:

$Revision: 3878 $

Author:

Keith Visco

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	INVALID_NUMBER_PARAMS
static java.lang.String	INVALID_RESULT

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

EXPR, FUNCTION_CALL, LITERAL, NUMBER, 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
FunctionCallImpl(java.lang.String name)

Method Summary

Methods

Modifier and Type	Method and Description
void	addParameter(XPathExpression expr) Adds the specified Expr to the list
java.lang.String	getFunctionName() Returns the name of this function call
XPathExpression	getParameter(int index) Returns the Expr at the specified position in this list.
int	getParameterCount() Returns the number of expressions in the List
java.lang.String	toString() Returns the String representation of this FunctionCall

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

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

evaluate

Field Detail

INVALID_NUMBER_PARAMS

public static final java.lang.String INVALID_NUMBER_PARAMS

See Also:

Constant Field Values

INVALID_RESULT

public static final java.lang.String INVALID_RESULT

See Also:

Constant Field Values

Constructor Detail

FunctionCallImpl

public FunctionCallImpl(java.lang.String name)

Method Detail

getFunctionName

public java.lang.String getFunctionName()

Returns the name of this function call

Specified by:

getFunctionName in class FunctionCall

Returns:

the name of this function call

toString

public java.lang.String toString()

Returns the String representation of this FunctionCall

Specified by:

toString in interface XPathExpression

Overrides:

toString in class java.lang.Object

Returns:

the String representation of this FunctionCall

addParameter

public final void addParameter(XPathExpression expr)
                        throws XPathException

Adds the specified Expr to the list

Parameters:

expr - the Expr to add to the list

Throws:

XPathException

getParameter

public final XPathExpression getParameter(int index)
                                   throws java.lang.IndexOutOfBoundsException

Returns the Expr at the specified position in this list.

Specified by:

getParameter in interface Parameters

Specified by:

getParameter in class FunctionCall

Parameters:

index - the position of the Expr to return

Throws:

java.lang.IndexOutOfBoundsException

getParameterCount

public final int getParameterCount()

Returns the number of expressions in the List

Specified by:

getParameterCount in interface Parameters

Specified by:

getParameterCount in class FunctionCall

Returns:

the number of expressions in the List