org.apache.fop.fo.expr

Class FromParentFunction

java.lang.Object

org.apache.fop.fo.expr.FunctionBase

org.apache.fop.fo.expr.FromParentFunction

All Implemented Interfaces:

Function

public class FromParentFunction
extends FunctionBase

Class modelling the from-parent Property Value function. See Sec. 5.10.4 of the XSL-FO spec.

Constructor Summary

Constructors

Constructor and Description
FromParentFunction()

Method Summary

Methods

Modifier and Type	Method and Description
Property	eval(Property[] args, PropertyInfo pInfo) Evaluate the function
int	nbArgs()
boolean	padArgsWithPropertyName()

Methods inherited from class org.apache.fop.fo.expr.FunctionBase

getPercentBase

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FromParentFunction

public FromParentFunction()

Method Detail

nbArgs

public int nbArgs()

Returns:

1 (maximum arguments for the from-parent function)

padArgsWithPropertyName

public boolean padArgsWithPropertyName()

Specified by:

padArgsWithPropertyName in interface Function

Overrides:

padArgsWithPropertyName in class FunctionBase

Returns:

true (allow padding of arglist with property name)

eval

public Property eval(Property[] args,
            PropertyInfo pInfo)
              throws PropertyException

Description copied from interface: Function

Evaluate the function

Parameters:

args - array of arguments, which should either be empty, or the first of which should contain an NCName corresponding to property name

pInfo - PropertyInfo object to be evaluated

Returns:

property containing the computed value

Throws:

PropertyException - if the arguments are incorrect