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.scaffold.http 5 5 0 0 8 0.0% 100.0% 0.0% 1
org.apache.commons.scaffold.lang 8 8 0 3 2 0.0% 40.0% 60.000004% 1
org.apache.commons.scaffold.lucene 2 2 0 1 10 0.0% 91.0% 9.0% 1
org.apache.commons.scaffold.sql 10 10 0 1 16 0.0% 94.0% 6.0% 1
org.apache.commons.scaffold.text 2 2 0 2 4 0.0% 67.0% 33.0% 1
org.apache.commons.scaffold.util 28 12 16 1 7 57.0% 88.0% 45.0% 1

Packages

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

org.apache.commons.scaffold.http

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 8 0.0% 100.0% 0.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.apache.commons.scaffold.http.ConnectionServlet
org.apache.commons.scaffold.http.HttpClient
org.apache.commons.scaffold.http.ResourceServlet
org.apache.commons.scaffold.http.SetUp
org.apache.commons.scaffold.http.SocketUtil
None java.io
java.lang
java.net
java.util
javax.servlet
javax.servlet.http
org.apache.commons.logging
org.apache.commons.scaffold.sql

org.apache.commons.scaffold.lang

Afferent Couplings Efferent Couplings Abstractness Instability Distance
3 2 0.0% 40.0% 60.000004%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.apache.commons.scaffold.lang.BaseException
org.apache.commons.scaffold.lang.ChainedException
org.apache.commons.scaffold.lang.ParameterException
org.apache.commons.scaffold.lang.PopulateException
org.apache.commons.scaffold.lang.PropertiesException
org.apache.commons.scaffold.lang.ResourceException
org.apache.commons.scaffold.lang.TestData
org.apache.commons.scaffold.lang.Tokens
org.apache.commons.scaffold.lucene
org.apache.commons.scaffold.sql
org.apache.commons.scaffold.util
java.io
java.lang

org.apache.commons.scaffold.lucene

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 10 0.0% 91.0% 9.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.apache.commons.scaffold.lucene.Engine
org.apache.commons.scaffold.lucene.SearchUtils
org.apache.commons.scaffold.sql
java.io
java.lang
java.util
org.apache.commons.beanutils
org.apache.commons.scaffold.lang
org.apache.lucene.analysis
org.apache.lucene.document
org.apache.lucene.index
org.apache.lucene.queryParser
org.apache.lucene.search

org.apache.commons.scaffold.sql

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 16 0.0% 94.0% 6.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.apache.commons.scaffold.sql.AccessBase
org.apache.commons.scaffold.sql.CommandStore
org.apache.commons.scaffold.sql.ConnectionAdaptor
org.apache.commons.scaffold.sql.MockAdaptor
org.apache.commons.scaffold.sql.PoolmanAdaptor
org.apache.commons.scaffold.sql.ResultSetUtils
org.apache.commons.scaffold.sql.ScrollerBeanBase
org.apache.commons.scaffold.sql.ServletAdaptor
org.apache.commons.scaffold.sql.StatementUtils
org.apache.commons.scaffold.sql.StorageBeanBase
org.apache.commons.scaffold.http
com.codestudio.sql
com.mockobjects.sql
java.beans
java.lang
java.lang.reflect
java.sql
java.util
javax.naming
javax.servlet
javax.servlet.http
javax.sql
org.apache.commons.beanutils
org.apache.commons.scaffold.lang
org.apache.commons.scaffold.lucene
org.apache.commons.scaffold.text
org.apache.commons.scaffold.util

org.apache.commons.scaffold.text

Afferent Couplings Efferent Couplings Abstractness Instability Distance
2 4 0.0% 67.0% 33.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.apache.commons.scaffold.text.ConvertUtils
org.apache.commons.scaffold.text.Merge
org.apache.commons.scaffold.sql
org.apache.commons.scaffold.util
java.lang
java.sql
java.text
java.util

org.apache.commons.scaffold.util

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 7 57.0% 88.0% 45.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.scaffold.util.BizRequest
org.apache.commons.scaffold.util.BizRequestImpl
org.apache.commons.scaffold.util.BizResponse
org.apache.commons.scaffold.util.BizService
org.apache.commons.scaffold.util.Executable
org.apache.commons.scaffold.util.Localized
org.apache.commons.scaffold.util.Mapped
org.apache.commons.scaffold.util.Message
org.apache.commons.scaffold.util.Messages
org.apache.commons.scaffold.util.ProcessBean
org.apache.commons.scaffold.util.ProcessBeanBase
org.apache.commons.scaffold.util.ProcessResult
org.apache.commons.scaffold.util.ResultList
org.apache.commons.scaffold.util.ScrollerBean
org.apache.commons.scaffold.util.Storable
org.apache.commons.scaffold.util.StorageBean
org.apache.commons.scaffold.util.BizResponseImpl
org.apache.commons.scaffold.util.BizServiceImpl
org.apache.commons.scaffold.util.FunctionBean
org.apache.commons.scaffold.util.LabelValueBean
org.apache.commons.scaffold.util.MessageImpl
org.apache.commons.scaffold.util.MessagesImpl
org.apache.commons.scaffold.util.MessagesImpl$1
org.apache.commons.scaffold.util.MessagesImpl$MessageItem
org.apache.commons.scaffold.util.ProcessResultBase
org.apache.commons.scaffold.util.ResourceUtils
org.apache.commons.scaffold.util.ResultListBase
org.apache.commons.scaffold.util.Scroller
org.apache.commons.scaffold.sql
java.io
java.lang
java.util
javax.servlet
org.apache.commons.beanutils
org.apache.commons.scaffold.lang
org.apache.commons.scaffold.text

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.