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	Description
static final String	INVALID_NUMBER_PARAMS
static final String	INVALID_RESULT

Fields inherited from class PrimaryExpr

EXPR, FUNCTION_CALL, LITERAL, NUMBER, VARIABLE_REFERENCE

Fields inherited from interface XPathExpression

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

Constructor Summary

Constructors

Constructor	Description
FunctionCallImpl(String name)

Method Summary

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

Methods inherited from class PrimaryExpr

getExprType, getType

Methods inherited from class Object

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

Methods inherited from interface XPathExpression

evaluate

Field Details

INVALID_NUMBER_PARAMS

public static final String INVALID_NUMBER_PARAMS

See Also:

• Constant Field Values

INVALID_RESULT

public static final String INVALID_RESULT

See Also:

• Constant Field Values

Constructor Details

FunctionCallImpl

public FunctionCallImpl(String name)

Method Details

getFunctionName

public String getFunctionName()

Returns the name of this function call

Specified by:

getFunctionName in class FunctionCall

Returns:

the name of this function call

toString

public String toString()

Returns the String representation of this FunctionCall

Specified by:

toString in interface XPathExpression

Overrides:

toString in class 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 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:

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