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.commons.proxy 10 6 4 7 4 40.0% 36.0% 24.0% 1
org.apache.commons.proxy.exception 3 3 0 5 1 0.0% 17.0% 83.0% 1
org.apache.commons.proxy.factory.cglib 7 7 0 0 5 0.0% 100.0% 0.0% 1
org.apache.commons.proxy.factory.javassist 7 6 1 0 8 14.0% 100.0% 14.0% 1
org.apache.commons.proxy.factory.util 5 2 3 2 6 60.000004% 75.0% 35.0% 1
org.apache.commons.proxy.interceptor 10 9 1 1 7 10.0% 88.0% 2.0% 1
org.apache.commons.proxy.interceptor.filter 3 3 0 0 4 0.0% 100.0% 0.0% 1
org.apache.commons.proxy.invoker 4 4 0 1 6 0.0% 86.0% 14.0% 1
org.apache.commons.proxy.provider 6 6 0 0 4 0.0% 100.0% 0.0% 1
org.apache.commons.proxy.provider.remoting 5 5 0 0 15 0.0% 100.0% 0.0% 1

Packages

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

org.apache.commons.proxy

Afferent Couplings Efferent Couplings Abstractness Instability Distance
7 4 40.0% 36.0% 24.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.proxy.Interceptor
org.apache.commons.proxy.Invocation
org.apache.commons.proxy.Invoker
org.apache.commons.proxy.ObjectProvider
org.apache.commons.proxy.ProxyFactory
org.apache.commons.proxy.ProxyFactory$DelegatorInvocationHandler
org.apache.commons.proxy.ProxyFactory$InterceptorInvocationHandler
org.apache.commons.proxy.ProxyFactory$InvokerInvocationHandler
org.apache.commons.proxy.ProxyFactory$ReflectionInvocation
org.apache.commons.proxy.ProxyUtils
org.apache.commons.proxy.factory.cglib
org.apache.commons.proxy.factory.javassist
org.apache.commons.proxy.factory.util
org.apache.commons.proxy.interceptor
org.apache.commons.proxy.invoker
org.apache.commons.proxy.provider
org.apache.commons.proxy.provider.remoting
java.lang
java.lang.reflect
java.util
org.apache.commons.proxy.invoker

org.apache.commons.proxy.exception

Afferent Couplings Efferent Couplings Abstractness Instability Distance
5 1 0.0% 17.0% 83.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.apache.commons.proxy.exception.InvokerException
org.apache.commons.proxy.exception.ObjectProviderException
org.apache.commons.proxy.exception.ProxyFactoryException
org.apache.commons.proxy.factory.javassist
org.apache.commons.proxy.factory.util
org.apache.commons.proxy.invoker
org.apache.commons.proxy.provider
org.apache.commons.proxy.provider.remoting
java.lang

org.apache.commons.proxy.factory.cglib

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 5 0.0% 100.0% 0.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.apache.commons.proxy.factory.cglib.CglibProxyFactory
org.apache.commons.proxy.factory.cglib.CglibProxyFactory$1
org.apache.commons.proxy.factory.cglib.CglibProxyFactory$InterceptorBridge
org.apache.commons.proxy.factory.cglib.CglibProxyFactory$InvokerBridge
org.apache.commons.proxy.factory.cglib.CglibProxyFactory$MethodProxyInvocation
org.apache.commons.proxy.factory.cglib.CglibProxyFactory$ObjectProviderDispatcher
org.apache.commons.proxy.factory.cglib.CglibProxyFactory$PublicCallbackFilter
None java.lang
java.lang.reflect
net.sf.cglib.proxy
org.apache.commons.proxy
org.apache.commons.proxy.factory.util

org.apache.commons.proxy.factory.javassist

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 8 14.0% 100.0% 14.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.proxy.factory.javassist.JavassistInvocation
org.apache.commons.proxy.factory.javassist.JavassistProxyFactory
org.apache.commons.proxy.factory.javassist.JavassistProxyFactory$1
org.apache.commons.proxy.factory.javassist.JavassistProxyFactory$DelegatingProxyClassGenerator
org.apache.commons.proxy.factory.javassist.JavassistProxyFactory$InterceptorProxyClassGenerator
org.apache.commons.proxy.factory.javassist.JavassistProxyFactory$InvokerProxyClassGenerator
org.apache.commons.proxy.factory.javassist.JavassistUtils
None java.lang
java.lang.ref
java.lang.reflect
java.util
javassist
org.apache.commons.proxy
org.apache.commons.proxy.exception
org.apache.commons.proxy.factory.util

org.apache.commons.proxy.factory.util

Afferent Couplings Efferent Couplings Abstractness Instability Distance
2 6 60.000004% 75.0% 35.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.proxy.factory.util.AbstractProxyClassGenerator
org.apache.commons.proxy.factory.util.AbstractSubclassingProxyFactory
org.apache.commons.proxy.factory.util.ProxyClassGenerator
org.apache.commons.proxy.factory.util.MethodSignature
org.apache.commons.proxy.factory.util.ProxyClassCache
org.apache.commons.proxy.factory.cglib
org.apache.commons.proxy.factory.javassist
java.lang
java.lang.ref
java.lang.reflect
java.util
org.apache.commons.proxy
org.apache.commons.proxy.exception

org.apache.commons.proxy.interceptor

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 7 10.0% 88.0% 2.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.proxy.interceptor.MethodFilter
org.apache.commons.proxy.interceptor.ExecutorInterceptor
org.apache.commons.proxy.interceptor.ExecutorInterceptor$1
org.apache.commons.proxy.interceptor.FilteredInterceptor
org.apache.commons.proxy.interceptor.InterceptorChain
org.apache.commons.proxy.interceptor.InterceptorChain$ProxyObjectProvider
org.apache.commons.proxy.interceptor.LoggingInterceptor
org.apache.commons.proxy.interceptor.MethodInterceptorAdapter
org.apache.commons.proxy.interceptor.MethodInterceptorAdapter$MethodInvocationAdapter
org.apache.commons.proxy.interceptor.SerializingInterceptor
org.apache.commons.proxy.interceptor.filter
EDU.oswego.cs.dl.util.concurrent
java.io
java.lang
java.lang.reflect
org.aopalliance.intercept
org.apache.commons.logging
org.apache.commons.proxy

org.apache.commons.proxy.interceptor.filter

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 4 0.0% 100.0% 0.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.apache.commons.proxy.interceptor.filter.PatternFilter
org.apache.commons.proxy.interceptor.filter.ReturnTypeFilter
org.apache.commons.proxy.interceptor.filter.SimpleFilter
None java.lang
java.lang.reflect
java.util
org.apache.commons.proxy.interceptor

org.apache.commons.proxy.invoker

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 6 0.0% 86.0% 14.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.apache.commons.proxy.invoker.DuckTypingInvoker
org.apache.commons.proxy.invoker.InvocationHandlerAdapter
org.apache.commons.proxy.invoker.NullInvoker
org.apache.commons.proxy.invoker.XmlRpcInvoker
org.apache.commons.proxy
java.lang
java.lang.reflect
java.util
org.apache.commons.proxy
org.apache.commons.proxy.exception
org.apache.xmlrpc

org.apache.commons.proxy.provider

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 4 0.0% 100.0% 0.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.apache.commons.proxy.provider.BeanProvider
org.apache.commons.proxy.provider.CloningProvider
org.apache.commons.proxy.provider.ConstantProvider
org.apache.commons.proxy.provider.NullProvider
org.apache.commons.proxy.provider.ProviderDecorator
org.apache.commons.proxy.provider.SingletonProvider
None java.lang
java.lang.reflect
org.apache.commons.proxy
org.apache.commons.proxy.exception

org.apache.commons.proxy.provider.remoting

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 15 0.0% 100.0% 0.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.apache.commons.proxy.provider.remoting.BurlapProvider
org.apache.commons.proxy.provider.remoting.HessianProvider
org.apache.commons.proxy.provider.remoting.JaxRpcProvider
org.apache.commons.proxy.provider.remoting.RmiProvider
org.apache.commons.proxy.provider.remoting.SessionBeanProvider
None com.caucho.burlap.client
com.caucho.hessian.client
java.lang
java.lang.reflect
java.net
java.rmi
java.rmi.registry
java.rmi.server
java.util
javax.naming
javax.rmi
javax.xml.namespace
javax.xml.rpc
org.apache.commons.proxy
org.apache.commons.proxy.exception

Cycles

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

Package Package Dependencies
org.apache.commons.proxy org.apache.commons.proxy.invoker
org.apache.commons.proxy
org.apache.commons.proxy.factory.cglib org.apache.commons.proxy
org.apache.commons.proxy.invoker
org.apache.commons.proxy
org.apache.commons.proxy.factory.javassist org.apache.commons.proxy
org.apache.commons.proxy.invoker
org.apache.commons.proxy
org.apache.commons.proxy.factory.util org.apache.commons.proxy
org.apache.commons.proxy.invoker
org.apache.commons.proxy
org.apache.commons.proxy.interceptor org.apache.commons.proxy
org.apache.commons.proxy.invoker
org.apache.commons.proxy
org.apache.commons.proxy.interceptor.filter org.apache.commons.proxy.interceptor
org.apache.commons.proxy
org.apache.commons.proxy.invoker
org.apache.commons.proxy
org.apache.commons.proxy.invoker org.apache.commons.proxy
org.apache.commons.proxy.invoker
org.apache.commons.proxy.provider org.apache.commons.proxy
org.apache.commons.proxy.invoker
org.apache.commons.proxy
org.apache.commons.proxy.provider.remoting org.apache.commons.proxy
org.apache.commons.proxy.invoker
org.apache.commons.proxy

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.