net.sf.morph.lang.support
Class BaseExpressionParser

java.lang.Object
  net.sf.morph.lang.support.BaseExpressionParser

All Implemented Interfaces:

ExpressionParser

Direct Known Subclasses:

SimpleExpressionParser

public abstract class BaseExpressionParser
extends java.lang.Object
implements ExpressionParser

A base class for expression parsers.

Since:

Nov 28, 2004

Author:

Matt Sgarlata

Constructor Summary

BaseExpressionParser()

Method Summary

java.lang.String[]	parse(java.lang.String expression) Parses an expression and returns the tokens found in the expression.
abstract java.lang.String[]	parseImpl(java.lang.String expression) Implement parse(expression).

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseExpressionParser

public BaseExpressionParser()

Method Detail

parseImpl

public abstract java.lang.String[] parseImpl(java.lang.String expression)
                                      throws java.lang.Exception

Implement parse(expression).

Parameters:

expression - to parse

Returns:

String[] of path elements.

Throws:

java.lang.Exception

parse

public java.lang.String[] parse(java.lang.String expression)
                         throws InvalidExpressionException

Parses an expression and returns the tokens found in the expression.

Specified by:

parse in interface ExpressionParser

Parameters:

expression - the expression

Returns:

the tokens found in the expression

Throws:

InvalidExpressionException - if the supplied expression is invalid