Fulcrum YAAFI Avalon Container - JDepend Report Metrics

Metric Results

[ summary ] [ packages ] [ cycles ] [ explanations ]

The following document contains the results of a JDepend metric analysis. The various metrics are defined at the bottom of this document.

Summary

[ summary ] [ packages ] [ cycles ] [ explanations ]

Package	TC	CC	AC	Ca	Ce	A	I	D	V
org.apache.fulcrum.jce.crypto	9	6	3	2	5	33.0%	71.0%	5.0%	1
org.apache.fulcrum.yaafi.cli	3	3	0	0	7	0.0%	100.0%	0.0%	1
org.apache.fulcrum.yaafi.framework.component	4	1	3	1	10	75.0%	91.0%	66.0%	1
org.apache.fulcrum.yaafi.framework.configuration	3	1	2	1	7	67.0%	88.0%	54.000004%	1
org.apache.fulcrum.yaafi.framework.constant	4	0	4	1	1	100.0%	50.0%	50.0%	1
org.apache.fulcrum.yaafi.framework.container	4	1	3	3	18	75.0%	86.0%	61.0%	1
org.apache.fulcrum.yaafi.framework.context	2	2	0	1	4	0.0%	80.0%	20.0%	1
org.apache.fulcrum.yaafi.framework.factory	2	2	0	1	11	0.0%	92.0%	8.0%	1
org.apache.fulcrum.yaafi.framework.interceptor	5	3	2	6	7	40.0%	54.000004%	6.0%	1
org.apache.fulcrum.yaafi.framework.locking	8	5	3	1	3	38.0%	75.0%	12.0%	1
org.apache.fulcrum.yaafi.framework.reflection	1	1	0	3	3	0.0%	50.0%	50.0%	1
org.apache.fulcrum.yaafi.framework.role	4	2	2	2	4	50.0%	67.0%	17.0%	1
org.apache.fulcrum.yaafi.framework.tls	4	3	1	1	2	25.0%	67.0%	8.0%	1
org.apache.fulcrum.yaafi.framework.util	7	7	0	12	6	0.0%	33.0%	67.0%	1
org.apache.fulcrum.yaafi.interceptor.baseservice	1	1	0	3	9	0.0%	75.0%	25.0%	1
org.apache.fulcrum.yaafi.interceptor.jamon	5	3	2	0	13	40.0%	100.0%	40.0%	1
org.apache.fulcrum.yaafi.interceptor.logging	2	1	1	0	10	50.0%	100.0%	50.0%	1
org.apache.fulcrum.yaafi.interceptor.performance	2	1	1	0	10	50.0%	100.0%	50.0%	1
org.apache.fulcrum.yaafi.interceptor.util	5	4	1	3	5	20.0%	62.0%	18.0%	1
org.apache.fulcrum.yaafi.service.advice	2	1	1	0	8	50.0%	100.0%	50.0%	1
org.apache.fulcrum.yaafi.service.baseservice	2	0	2	0	8	100.0%	100.0%	100.0%	1
org.apache.fulcrum.yaafi.service.reconfiguration	3	2	1	0	10	33.0%	100.0%	33.0%	1
org.apache.fulcrum.yaafi.service.servicemanager	2	1	1	0	6	50.0%	100.0%	50.0%	1
org.apache.fulcrum.yaafi.service.shutdown	4	3	1	0	9	25.0%	100.0%	25.0%	1
org.apache.fulcrum.yaafi.service.systemproperty	2	1	1	0	3	50.0%	100.0%	50.0%	1

Packages

[ summary ] [ packages ] [ cycles ] [ explanations ]

org.apache.fulcrum.jce.crypto

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
2	5	33.0%	71.0%	5.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.jce.crypto.CryptoParameters org.apache.fulcrum.jce.crypto.CryptoStreamFactory org.apache.fulcrum.jce.crypto.PasswordParameters	org.apache.fulcrum.jce.crypto.CryptoStreamFactoryImpl org.apache.fulcrum.jce.crypto.CryptoUtil org.apache.fulcrum.jce.crypto.HexConverter org.apache.fulcrum.jce.crypto.Main org.apache.fulcrum.jce.crypto.PasswordFactory org.apache.fulcrum.jce.crypto.SmartDecryptingInputStream	org.apache.fulcrum.yaafi.framework.container org.apache.fulcrum.yaafi.framework.factory	java.io java.lang java.security javax.crypto javax.crypto.spec

org.apache.fulcrum.yaafi.cli

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	7	0.0%	100.0%	0.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	org.apache.fulcrum.yaafi.cli.Getopt org.apache.fulcrum.yaafi.cli.Main org.apache.fulcrum.yaafi.cli.Shutdown	None	java.io java.lang org.apache.avalon.framework.activity org.apache.avalon.framework.logger org.apache.avalon.framework.service org.apache.fulcrum.yaafi.framework.container org.apache.fulcrum.yaafi.framework.factory

org.apache.fulcrum.yaafi.framework.component

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	10	75.0%	91.0%	66.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.framework.component.ServiceComponent org.apache.fulcrum.yaafi.framework.component.ServiceComponentImpl org.apache.fulcrum.yaafi.framework.component.ServiceComponentLifecycle	org.apache.fulcrum.yaafi.framework.component.AvalonServiceComponentImpl	org.apache.fulcrum.yaafi.framework.container	java.lang org.apache.avalon.framework.activity org.apache.avalon.framework.configuration org.apache.avalon.framework.context org.apache.avalon.framework.logger org.apache.avalon.framework.parameters org.apache.avalon.framework.service org.apache.fulcrum.yaafi.framework.interceptor org.apache.fulcrum.yaafi.framework.role org.apache.fulcrum.yaafi.framework.util

org.apache.fulcrum.yaafi.framework.configuration

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	7	67.0%	88.0%	54.000004%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.framework.configuration.ComponentConfigurationPropertiesResolver org.apache.fulcrum.yaafi.framework.configuration.ComponentConfigurationPropertiesResolverBaseImpl	org.apache.fulcrum.yaafi.framework.configuration.ComponentConfigurationPropertiesResolverImpl	org.apache.fulcrum.yaafi.framework.container	java.io java.lang java.util org.apache.avalon.framework.configuration org.apache.avalon.framework.context org.apache.avalon.framework.logger org.apache.fulcrum.yaafi.framework.util

org.apache.fulcrum.yaafi.framework.constant

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	1	100.0%	50.0%	50.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.framework.constant.AvalonFortressConstants org.apache.fulcrum.yaafi.framework.constant.AvalonMerlinConstants org.apache.fulcrum.yaafi.framework.constant.AvalonPhoenixConstants org.apache.fulcrum.yaafi.framework.constant.AvalonYaafiConstants	None	org.apache.fulcrum.yaafi.framework.container	java.lang

org.apache.fulcrum.yaafi.framework.container

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
3	18	75.0%	86.0%	61.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.framework.container.ServiceConstants org.apache.fulcrum.yaafi.framework.container.ServiceContainer org.apache.fulcrum.yaafi.framework.container.ServiceLifecycleManager	org.apache.fulcrum.yaafi.framework.container.ServiceContainerImpl	org.apache.fulcrum.yaafi.cli org.apache.fulcrum.yaafi.framework.factory org.apache.fulcrum.yaafi.service.reconfiguration	java.io java.lang java.security java.util org.apache.avalon.framework.activity org.apache.avalon.framework.configuration org.apache.avalon.framework.container org.apache.avalon.framework.context org.apache.avalon.framework.logger org.apache.avalon.framework.parameters org.apache.avalon.framework.service org.apache.fulcrum.jce.crypto org.apache.fulcrum.yaafi.framework.component org.apache.fulcrum.yaafi.framework.configuration org.apache.fulcrum.yaafi.framework.constant org.apache.fulcrum.yaafi.framework.context org.apache.fulcrum.yaafi.framework.role org.apache.fulcrum.yaafi.framework.util

org.apache.fulcrum.yaafi.framework.context

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	4	0.0%	80.0%	20.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	org.apache.fulcrum.yaafi.framework.context.AvalonToYaafiContextMapper org.apache.fulcrum.yaafi.framework.context.YaafiToAvalonContextMapper	org.apache.fulcrum.yaafi.framework.container	java.io java.lang org.apache.avalon.framework.context org.apache.fulcrum.yaafi.framework.util

org.apache.fulcrum.yaafi.framework.factory

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	11	0.0%	92.0%	8.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	org.apache.fulcrum.yaafi.framework.factory.ServiceContainerConfiguration org.apache.fulcrum.yaafi.framework.factory.ServiceContainerFactory	org.apache.fulcrum.yaafi.cli	java.io java.lang java.util org.apache.avalon.framework.configuration org.apache.avalon.framework.container org.apache.avalon.framework.context org.apache.avalon.framework.logger org.apache.avalon.framework.service org.apache.fulcrum.jce.crypto org.apache.fulcrum.yaafi.framework.container org.apache.fulcrum.yaafi.framework.util

org.apache.fulcrum.yaafi.framework.interceptor

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
6	7	40.0%	54.000004%	6.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.framework.interceptor.AvalonInterceptorContext org.apache.fulcrum.yaafi.framework.interceptor.AvalonInterceptorService	org.apache.fulcrum.yaafi.framework.interceptor.AvalonInterceptorContextImpl org.apache.fulcrum.yaafi.framework.interceptor.AvalonInterceptorFactory org.apache.fulcrum.yaafi.framework.interceptor.AvalonInterceptorInvocationHandler	org.apache.fulcrum.yaafi.framework.component org.apache.fulcrum.yaafi.interceptor.baseservice org.apache.fulcrum.yaafi.interceptor.jamon org.apache.fulcrum.yaafi.interceptor.logging org.apache.fulcrum.yaafi.interceptor.performance org.apache.fulcrum.yaafi.service.advice	java.lang java.lang.reflect java.util org.apache.avalon.framework.service org.apache.fulcrum.yaafi.framework.reflection org.apache.fulcrum.yaafi.framework.tls org.apache.fulcrum.yaafi.framework.util

org.apache.fulcrum.yaafi.framework.locking

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	3	38.0%	75.0%	12.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.framework.locking.LoggerFacade org.apache.fulcrum.yaafi.framework.locking.MultiLevelLock org.apache.fulcrum.yaafi.framework.locking.MultiLevelLock2	org.apache.fulcrum.yaafi.framework.locking.AvalonLoggerFacade org.apache.fulcrum.yaafi.framework.locking.GenericLock org.apache.fulcrum.yaafi.framework.locking.GenericLock$LockOwner org.apache.fulcrum.yaafi.framework.locking.LockException org.apache.fulcrum.yaafi.framework.locking.ReadWriteLock	org.apache.fulcrum.yaafi.framework.util	java.lang java.util org.apache.avalon.framework.logger

org.apache.fulcrum.yaafi.framework.reflection

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
3	3	0.0%	50.0%	50.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	org.apache.fulcrum.yaafi.framework.reflection.Clazz	org.apache.fulcrum.yaafi.framework.interceptor org.apache.fulcrum.yaafi.interceptor.jamon org.apache.fulcrum.yaafi.interceptor.logging	java.lang java.lang.reflect java.util

org.apache.fulcrum.yaafi.framework.role

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
2	4	50.0%	67.0%	17.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.framework.role.RoleConfigurationParser org.apache.fulcrum.yaafi.framework.role.RoleEntry	org.apache.fulcrum.yaafi.framework.role.RoleConfigurationParserImpl org.apache.fulcrum.yaafi.framework.role.RoleEntryImpl	org.apache.fulcrum.yaafi.framework.component org.apache.fulcrum.yaafi.framework.container	java.lang java.util org.apache.avalon.framework.configuration org.apache.fulcrum.yaafi.framework.util

org.apache.fulcrum.yaafi.framework.tls

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	2	25.0%	67.0%	8.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.framework.tls.ThreadLocalStorage	org.apache.fulcrum.yaafi.framework.tls.ThreadLocalStorageImpl org.apache.fulcrum.yaafi.framework.tls.ThreadLocalStorageImpl$1 org.apache.fulcrum.yaafi.framework.tls.ThreadLocalStorageImpl$CleanableThreadLocal	org.apache.fulcrum.yaafi.framework.interceptor	java.lang java.util

org.apache.fulcrum.yaafi.framework.util

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
12	6	0.0%	33.0%	67.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	org.apache.fulcrum.yaafi.framework.util.ConfigurationUtil org.apache.fulcrum.yaafi.framework.util.ExceptionUtils org.apache.fulcrum.yaafi.framework.util.InputStreamLocator org.apache.fulcrum.yaafi.framework.util.ReadWriteLock org.apache.fulcrum.yaafi.framework.util.StringUtils org.apache.fulcrum.yaafi.framework.util.ToStringBuilder org.apache.fulcrum.yaafi.framework.util.Validate	org.apache.fulcrum.yaafi.framework.component org.apache.fulcrum.yaafi.framework.configuration org.apache.fulcrum.yaafi.framework.container org.apache.fulcrum.yaafi.framework.context org.apache.fulcrum.yaafi.framework.factory org.apache.fulcrum.yaafi.framework.interceptor org.apache.fulcrum.yaafi.framework.role org.apache.fulcrum.yaafi.interceptor.baseservice org.apache.fulcrum.yaafi.interceptor.util org.apache.fulcrum.yaafi.service.advice org.apache.fulcrum.yaafi.service.reconfiguration org.apache.fulcrum.yaafi.service.shutdown	java.io java.lang java.util org.apache.avalon.framework.configuration org.apache.avalon.framework.logger org.apache.fulcrum.yaafi.framework.locking

org.apache.fulcrum.yaafi.interceptor.baseservice

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
3	9	0.0%	75.0%	25.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	org.apache.fulcrum.yaafi.interceptor.baseservice.BaseInterceptorServiceImpl	org.apache.fulcrum.yaafi.interceptor.jamon org.apache.fulcrum.yaafi.interceptor.logging org.apache.fulcrum.yaafi.interceptor.performance	java.io java.lang java.util org.apache.avalon.framework.configuration org.apache.avalon.framework.context org.apache.avalon.framework.logger org.apache.avalon.framework.service org.apache.fulcrum.yaafi.framework.interceptor org.apache.fulcrum.yaafi.framework.util

org.apache.fulcrum.yaafi.interceptor.jamon

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	13	40.0%	100.0%	40.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.interceptor.jamon.JamonInterceptorService org.apache.fulcrum.yaafi.interceptor.jamon.JamonPerformanceMonitor	org.apache.fulcrum.yaafi.interceptor.jamon.Jamon1PerformanceMonitorImpl org.apache.fulcrum.yaafi.interceptor.jamon.Jamon2PerformanceMonitorImpl org.apache.fulcrum.yaafi.interceptor.jamon.JamonInterceptorServiceImpl	None	com.jamonapi java.io java.lang java.lang.reflect java.util org.apache.avalon.framework.activity org.apache.avalon.framework.configuration org.apache.avalon.framework.logger org.apache.avalon.framework.thread org.apache.fulcrum.yaafi.framework.interceptor org.apache.fulcrum.yaafi.framework.reflection org.apache.fulcrum.yaafi.interceptor.baseservice org.apache.fulcrum.yaafi.interceptor.util

org.apache.fulcrum.yaafi.interceptor.logging

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	10	50.0%	100.0%	50.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.interceptor.logging.LoggingInterceptorService	org.apache.fulcrum.yaafi.interceptor.logging.LoggingInterceptorServiceImpl	None	java.lang java.lang.reflect java.util org.apache.avalon.framework.activity org.apache.avalon.framework.configuration org.apache.avalon.framework.logger org.apache.fulcrum.yaafi.framework.interceptor org.apache.fulcrum.yaafi.framework.reflection org.apache.fulcrum.yaafi.interceptor.baseservice org.apache.fulcrum.yaafi.interceptor.util

org.apache.fulcrum.yaafi.interceptor.performance

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	10	50.0%	100.0%	50.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.interceptor.performance.PerformanceInterceptorService	org.apache.fulcrum.yaafi.interceptor.performance.PerformanceInterceptorServiceImpl	None	java.lang java.lang.reflect java.util org.apache.avalon.framework.configuration org.apache.avalon.framework.context org.apache.avalon.framework.logger org.apache.avalon.framework.thread org.apache.fulcrum.yaafi.framework.interceptor org.apache.fulcrum.yaafi.interceptor.baseservice org.apache.fulcrum.yaafi.interceptor.util

org.apache.fulcrum.yaafi.interceptor.util

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
3	5	20.0%	62.0%	18.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.interceptor.util.InterceptorToStringBuilder	org.apache.fulcrum.yaafi.interceptor.util.ArgumentToStringBuilderImpl org.apache.fulcrum.yaafi.interceptor.util.DefaultToStringBuilderImpl org.apache.fulcrum.yaafi.interceptor.util.MethodToStringBuilderImpl org.apache.fulcrum.yaafi.interceptor.util.StopWatch	org.apache.fulcrum.yaafi.interceptor.jamon org.apache.fulcrum.yaafi.interceptor.logging org.apache.fulcrum.yaafi.interceptor.performance	java.io java.lang java.lang.reflect java.util org.apache.fulcrum.yaafi.framework.util

org.apache.fulcrum.yaafi.service.advice

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	8	50.0%	100.0%	50.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.service.advice.AdviceService	org.apache.fulcrum.yaafi.service.advice.AdviceServiceImpl	None	java.lang java.lang.reflect org.apache.avalon.framework.configuration org.apache.avalon.framework.context org.apache.avalon.framework.logger org.apache.avalon.framework.service org.apache.fulcrum.yaafi.framework.interceptor org.apache.fulcrum.yaafi.framework.util

org.apache.fulcrum.yaafi.service.baseservice

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	8	100.0%	100.0%	100.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.service.baseservice.BaseService org.apache.fulcrum.yaafi.service.baseservice.BaseServiceImpl	None	None	java.io java.lang org.apache.avalon.framework.activity org.apache.avalon.framework.configuration org.apache.avalon.framework.context org.apache.avalon.framework.logger org.apache.avalon.framework.parameters org.apache.avalon.framework.service

org.apache.fulcrum.yaafi.service.reconfiguration

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	10	33.0%	100.0%	33.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.service.reconfiguration.ReconfigurationService	org.apache.fulcrum.yaafi.service.reconfiguration.ReconfigurationEntry org.apache.fulcrum.yaafi.service.reconfiguration.ReconfigurationServiceImpl	None	java.io java.lang java.security org.apache.avalon.framework.activity org.apache.avalon.framework.configuration org.apache.avalon.framework.context org.apache.avalon.framework.logger org.apache.avalon.framework.service org.apache.fulcrum.yaafi.framework.container org.apache.fulcrum.yaafi.framework.util

org.apache.fulcrum.yaafi.service.servicemanager

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	6	50.0%	100.0%	50.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.service.servicemanager.ServiceManagerService	org.apache.fulcrum.yaafi.service.servicemanager.ServiceManagerServiceImpl	None	java.lang org.apache.avalon.framework.activity org.apache.avalon.framework.context org.apache.avalon.framework.logger org.apache.avalon.framework.parameters org.apache.avalon.framework.service

org.apache.fulcrum.yaafi.service.shutdown

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	9	25.0%	100.0%	25.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.service.shutdown.ShutdownService	org.apache.fulcrum.yaafi.service.shutdown.Shutdown org.apache.fulcrum.yaafi.service.shutdown.ShutdownEntry org.apache.fulcrum.yaafi.service.shutdown.ShutdownServiceImpl	None	java.io java.lang java.security org.apache.avalon.framework.activity org.apache.avalon.framework.configuration org.apache.avalon.framework.context org.apache.avalon.framework.logger org.apache.avalon.framework.service org.apache.fulcrum.yaafi.framework.util

org.apache.fulcrum.yaafi.service.systemproperty

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	3	50.0%	100.0%	50.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.fulcrum.yaafi.service.systemproperty.SystemPropertyService	org.apache.fulcrum.yaafi.service.systemproperty.SystemPropertyServiceImpl	None	java.lang org.apache.avalon.framework.configuration org.apache.avalon.framework.logger

Cycles

[ summary ] [ packages ] [ cycles ] [ explanations ]

There are no cyclic dependencies.

Explanation

[ summary ] [ packages ] [ cycles ] [ explanations ]

The following explanations are for quick reference and are lifted directly from the original JDepend documentation.

Term	Description
Number of Classes	The number of concrete and abstract classes (and interfaces) in the package is an indicator of the extensibility of the package.
Afferent Couplings	The number of other packages that depend upon classes within the package is an indicator of the package's responsibility.
Efferent Couplings	The number of other packages that the classes in the package depend upon is an indicator of the package's independence.
Abstractness	The ratio of the number of abstract classes (and interfaces) in the analyzed package to the total number of classes in the analyzed package. The range for this metric is 0 to 1, with A=0 indicating a completely concrete package and A=1 indicating a completely abstract package.
Instability	The ratio of efferent coupling (Ce) to total coupling (Ce / (Ce + Ca)). This metric is an indicator of the package's resilience to change. The range for this metric is 0 to 1, with I=0 indicating a completely stable package and I=1 indicating a completely instable package.
Distance	The perpendicular distance of a package from the idealized line A + I = 1. This metric is an indicator of the package's balance between abstractness and stability. A package squarely on the main sequence is optimally balanced with respect to its abstractness and stability. Ideal packages are either completely abstract and stable (x=0, y=1) or completely concrete and instable (x=1, y=0). The range for this metric is 0 to 1, with D=0 indicating a package that is coincident with the main sequence and D=1 indicating a package that is as far from the main sequence as possible.
Cycles	Packages participating in a package dependency cycle are in a deadly embrace with respect to reusability and their release cycle. Package dependency cycles can be easily identified by reviewing the textual reports of dependency cycles. Once these dependency cycles have been identified with JDepend, they can be broken by employing various object-oriented techniques.

Overview

Project Documentation

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