org.objectweb.jac.core
Class Pointcut

java.lang.Object
  |
  +--org.objectweb.jac.core.Pointcut

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

MethodPointcut

public abstract class Pointcut

extends Object

implements Serializable

This abstract class is the definition of a pointcut in org.objectweb.jac.

Author:

Renaud Pawlak

See Also:

AspectComponent, MethodPointcut, Serialized Form

Constructor Summary

Pointcut()

Method Summary

abstract void	applyTo(Wrappee wrappee, ClassItem cl) Applies this pointcut to the given wrappee.
protected void	parseExpr(String descr, Wrappee wrappee, ClassItem cl, String expr, String[] keywords, Vector result, Vector inv) A generic method that parses a pointcut expression and stores the result within a vector.
protected abstract String	parseKeyword(Wrappee wrappee, ClassItem cl, String keywordExpr, List parameters) Parses a keyword expression and returns its actual value as a regular expression regarding the context.
protected List	replaceTags(List parameters, ClassItem cli) Replace elements of parameters "" with members who have this attribute, and "member_name" with the member having that name.

Methods inherited from class java.lang.Object

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

Constructor Detail

Pointcut

public Pointcut()

Method Detail

applyTo

public abstract void applyTo(Wrappee wrappee,
                             ClassItem cl)

Applies this pointcut to the given wrappee.

Parameters:

wrappee - the component the current pointcut is applied to

parseKeyword

protected abstract String parseKeyword(Wrappee wrappee,
                                       ClassItem cl,
                                       String keywordExpr,
                                       List parameters)

Parses a keyword expression and returns its actual value as a regular expression regarding the context.

replaceTags

protected List replaceTags(List parameters,
                           ClassItem cli)

Replace elements of parameters "" with members who have this attribute, and "member_name" with the member having that name.

Parameters:

parameters - Strings to replace

cli - replace with members of this class

Returns:

substituted list of MemberItem

parseExpr

protected void parseExpr(String descr,
                         Wrappee wrappee,
                         ClassItem cl,
                         String expr,
                         String[] keywords,
                         Vector result,
                         Vector inv)

A generic method that parses a pointcut expression and stores the result within a vector.

Parameters:

descr - a humain readable desciption of the pointcut expression type (used to make logs clearer)

expr - a pointcut expression

result - the parsing result

inv - filled with Boolean, one per element in result