edu.ucsb.ccs.jcontractor
Class CompositeInstrumentationFilter

java.lang.Object
  |
  +--edu.ucsb.ccs.jcontractor.CompositeInstrumentationFilter

All Implemented Interfaces:

InstrumentationFilter

public class CompositeInstrumentationFilter

extends java.lang.Object

implements InstrumentationFilter

An instrumentation filter that combines other instrumentation filters.

Version:

$Id: CompositeInstrumentationFilter.java,v 1.3 2002/05/22 06:28:36 parkera Exp $

Author:

Parker Abercrombie

Field Summary

Fields inherited from interface edu.ucsb.ccs.jcontractor.InstrumentationFilter

ALL, NONE, POST, PRE

Constructor Summary

CompositeInstrumentationFilter()
Create a new filter.

Method Summary

void	addFilter(InstrumentationFilter filter) Add a filter to the composite filter.
boolean	appliesTo(java.lang.String classname) Always returns true.
int	getFilterLevel() Get the filter level; always returns zero.
java.util.LinkedList	getFilters() Get the filters in the composite filter as a linked list.
int	getInstrumentationLevel(java.lang.String classname) Get the instrumentation level for a class.
int	size() Get the number of filters in this composite filter.
java.lang.String	toString() Get a string representation of the filter, for debugging.

Methods inherited from class java.lang.Object

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

Constructor Detail

CompositeInstrumentationFilter

public CompositeInstrumentationFilter()

Create a new filter.

Method Detail

addFilter

public void addFilter(InstrumentationFilter filter)

Add a filter to the composite filter.

Parameters:

filter - the filter to add.

getFilters

public java.util.LinkedList getFilters()

Get the filters in the composite filter as a linked list.

Returns:

the filters in the composite filter.

appliesTo

public boolean appliesTo(java.lang.String classname)

Always returns true.

Specified by:

appliesTo in interface InstrumentationFilter

Parameters:

classname - the name of a class to test.

Returns:

true.

getFilterLevel

public int getFilterLevel()

Get the filter level; always returns zero.

Specified by:

getFilterLevel in interface InstrumentationFilter

Returns:

zero.

getInstrumentationLevel

public int getInstrumentationLevel(java.lang.String classname)

Get the instrumentation level for a class. This is determined by querying each filter in the composite filter. The instrumentation level given by the filter with the highest filter level is returned. If two or more filters tie in filter level, the one that was added to the composite last takes priority.

Specified by:

getInstrumentationLevel in interface InstrumentationFilter

Parameters:

classname - the name of the class to get the instrumentation level of.

Returns:

the instrumenation level, one of NONE, PRE, POST, and ALL. Returns NONE if there are no filters in the composite filter.

size

public int size()

Get the number of filters in this composite filter.

toString

public java.lang.String toString()

Get a string representation of the filter, for debugging.

Overrides:

toString in class java.lang.Object