uk.ac.ed.epcc.safe.accounting.reports

Class ExpressionExpander

java.lang.Object

uk.ac.ed.epcc.safe.accounting.reports.ExpressionExpander

All Implemented Interfaces:

uk.ac.ed.epcc.webapp.Contexed

public class ExpressionExpander
extends java.lang.Object
implements uk.ac.ed.epcc.webapp.Contexed

Class for performing prop-expression macro expansion on strings. Macros are of the form $[format]{expr} or ${expr} If a format is specified it is taken as a class tag for a ValueParser If no format is specified a default formatter is chosen based on the type of the parameter.

Author:

spb

Constructor Summary

Constructors

Constructor and Description
ExpressionExpander(uk.ac.ed.epcc.webapp.AppContext c, ValueParserPolicy policy)

Method Summary

Methods

Modifier and Type	Method and Description
<T> T	evaluate(PropExpression<T> expr)
<T> java.lang.String	expand(java.lang.String input)
uk.ac.ed.epcc.webapp.AppContext	getContext()
ExpressionTarget	getExpressionTarget()
<T> boolean	isDefined(java.lang.String name)
PropExpression	parse(java.lang.String name)
void	setExpressionTarget(ExpressionTarget cont)

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionExpander

public ExpressionExpander(uk.ac.ed.epcc.webapp.AppContext c,
                  ValueParserPolicy policy)

Method Detail

getContext

public uk.ac.ed.epcc.webapp.AppContext getContext()

Specified by:

getContext in interface uk.ac.ed.epcc.webapp.Contexed

setExpressionTarget

public void setExpressionTarget(ExpressionTarget cont)

getExpressionTarget

public ExpressionTarget getExpressionTarget()

expand

public <T> java.lang.String expand(java.lang.String input)

isDefined

public <T> boolean isDefined(java.lang.String name)

parse

public PropExpression parse(java.lang.String name)

evaluate

public <T> T evaluate(PropExpression<T> expr)