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.digester 37 27 10 4 13 27.000002% 76.0% 3.0% 1
org.apache.commons.digester.parser 2 2 0 1 6 0.0% 86.0% 14.0% 1
org.apache.commons.digester.plugins 15 11 4 1 7 27.000002% 88.0% 14.0% 1
org.apache.commons.digester.plugins.strategies 11 11 0 1 10 0.0% 91.0% 9.0% 1
org.apache.commons.digester.substitution 4 3 1 0 4 25.0% 100.0% 25.0% 1
org.apache.commons.digester.xmlrules 31 29 2 1 7 6.0% 88.0% 6.0% 1

Packages

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

org.apache.commons.digester

Afferent Couplings Efferent Couplings Abstractness Instability Distance
4 13 27.000002% 76.0% 3.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.digester.AbstractObjectCreationFactory
org.apache.commons.digester.AbstractRulesImpl
org.apache.commons.digester.ObjectCreationFactory
org.apache.commons.digester.RegexMatcher
org.apache.commons.digester.Rule
org.apache.commons.digester.RuleSet
org.apache.commons.digester.RuleSetBase
org.apache.commons.digester.Rules
org.apache.commons.digester.StackAction
org.apache.commons.digester.Substitutor
 org.apache.commons.digester.BeanPropertySetterRule
org.apache.commons.digester.CallMethodRule
org.apache.commons.digester.CallParamRule
org.apache.commons.digester.Digester
org.apache.commons.digester.ExtendedBaseRules
org.apache.commons.digester.ExtendedBaseRules$1
org.apache.commons.digester.FactoryCreateRule
org.apache.commons.digester.NodeCreateRule
org.apache.commons.digester.NodeCreateRule$NodeBuilder
org.apache.commons.digester.ObjectCreateRule
org.apache.commons.digester.ObjectParamRule
org.apache.commons.digester.ParserFeatureSetterFactory
org.apache.commons.digester.PathCallParamRule
org.apache.commons.digester.RegexRules
org.apache.commons.digester.RegexRules$RegisteredRule
org.apache.commons.digester.RulesBase
org.apache.commons.digester.SetNestedPropertiesRule
org.apache.commons.digester.SetNestedPropertiesRule$1
org.apache.commons.digester.SetNestedPropertiesRule$AnyChildRule
org.apache.commons.digester.SetNestedPropertiesRule$AnyChildRules
org.apache.commons.digester.SetNextRule
org.apache.commons.digester.SetPropertiesRule
org.apache.commons.digester.SetPropertyRule
org.apache.commons.digester.SetRootRule
org.apache.commons.digester.SetTopRule
org.apache.commons.digester.SimpleRegexMatcher
org.apache.commons.digester.WithDefaultsRulesWrapper
 org.apache.commons.digester.plugins
org.apache.commons.digester.plugins.strategies
org.apache.commons.digester.substitution
org.apache.commons.digester.xmlrules
 java.io
java.lang
java.lang.reflect
java.net
java.util
javax.xml.parsers
javax.xml.validation
org.apache.commons.beanutils
org.apache.commons.digester.parser
org.apache.commons.logging
org.w3c.dom
org.xml.sax
org.xml.sax.helpers

org.apache.commons.digester.parser

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.digester.parser.GenericParser
org.apache.commons.digester.parser.XercesParser
 org.apache.commons.digester
 java.lang
java.lang.reflect
java.util
javax.xml.parsers
org.apache.commons.logging
org.xml.sax

org.apache.commons.digester.plugins

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 7 27.000002% 88.0% 14.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.digester.plugins.InitializableRule
org.apache.commons.digester.plugins.RuleFinder
org.apache.commons.digester.plugins.RuleLoader
org.apache.commons.digester.plugins.RulesFactory
 org.apache.commons.digester.plugins.Declaration
org.apache.commons.digester.plugins.LogUtils
org.apache.commons.digester.plugins.PluginAssertionFailure
org.apache.commons.digester.plugins.PluginConfigurationException
org.apache.commons.digester.plugins.PluginContext
org.apache.commons.digester.plugins.PluginCreateRule
org.apache.commons.digester.plugins.PluginDeclarationRule
org.apache.commons.digester.plugins.PluginException
org.apache.commons.digester.plugins.PluginInvalidInputException
org.apache.commons.digester.plugins.PluginManager
org.apache.commons.digester.plugins.PluginRules
 org.apache.commons.digester.plugins.strategies
 java.lang
java.util
org.apache.commons.digester
org.apache.commons.digester.plugins.strategies
org.apache.commons.logging
org.apache.commons.logging.impl
org.xml.sax

org.apache.commons.digester.plugins.strategies

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.digester.plugins.strategies.FinderFromClass
org.apache.commons.digester.plugins.strategies.FinderFromDfltClass
org.apache.commons.digester.plugins.strategies.FinderFromDfltMethod
org.apache.commons.digester.plugins.strategies.FinderFromDfltResource
org.apache.commons.digester.plugins.strategies.FinderFromFile
org.apache.commons.digester.plugins.strategies.FinderFromMethod
org.apache.commons.digester.plugins.strategies.FinderFromResource
org.apache.commons.digester.plugins.strategies.FinderSetProperties
org.apache.commons.digester.plugins.strategies.LoaderFromClass
org.apache.commons.digester.plugins.strategies.LoaderFromStream
org.apache.commons.digester.plugins.strategies.LoaderSetProperties
 org.apache.commons.digester.plugins
 java.io
java.lang
java.lang.reflect
java.util
org.apache.commons.beanutils
org.apache.commons.digester
org.apache.commons.digester.plugins
org.apache.commons.digester.xmlrules
org.apache.commons.logging
org.xml.sax

org.apache.commons.digester.substitution

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 4 25.0% 100.0% 25.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.digester.substitution.VariableExpander
 org.apache.commons.digester.substitution.MultiVariableExpander
org.apache.commons.digester.substitution.VariableAttributes
org.apache.commons.digester.substitution.VariableSubstitutor
 None java.lang
java.util
org.apache.commons.digester
org.xml.sax

org.apache.commons.digester.xmlrules

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 7 6.0% 88.0% 6.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.digester.xmlrules.DigesterRulesSource
org.apache.commons.digester.xmlrules.FromXmlRuleSet$XMLRulesLoader
 org.apache.commons.digester.xmlrules.CircularIncludeException
org.apache.commons.digester.xmlrules.DigesterLoader
org.apache.commons.digester.xmlrules.DigesterLoadingException
org.apache.commons.digester.xmlrules.DigesterRuleParser
org.apache.commons.digester.xmlrules.DigesterRuleParser$1
org.apache.commons.digester.xmlrules.DigesterRuleParser$BeanPropertySetterRuleFactory
org.apache.commons.digester.xmlrules.DigesterRuleParser$CallMethodRuleFactory
org.apache.commons.digester.xmlrules.DigesterRuleParser$CallParamRuleFactory
org.apache.commons.digester.xmlrules.DigesterRuleParser$FactoryCreateRuleFactory
org.apache.commons.digester.xmlrules.DigesterRuleParser$IncludeRule
org.apache.commons.digester.xmlrules.DigesterRuleParser$NodeCreateRuleFactory
org.apache.commons.digester.xmlrules.DigesterRuleParser$ObjectCreateRuleFactory
org.apache.commons.digester.xmlrules.DigesterRuleParser$ObjectParamRuleFactory
org.apache.commons.digester.xmlrules.DigesterRuleParser$PatternRule
org.apache.commons.digester.xmlrules.DigesterRuleParser$PatternStack
org.apache.commons.digester.xmlrules.DigesterRuleParser$RulesPrefixAdapter
org.apache.commons.digester.xmlrules.DigesterRuleParser$SetNestedPropertiesAliasRule
org.apache.commons.digester.xmlrules.DigesterRuleParser$SetNestedPropertiesRuleFactory
org.apache.commons.digester.xmlrules.DigesterRuleParser$SetNextRuleFactory
org.apache.commons.digester.xmlrules.DigesterRuleParser$SetPropertiesAliasRule
org.apache.commons.digester.xmlrules.DigesterRuleParser$SetPropertiesRuleFactory
org.apache.commons.digester.xmlrules.DigesterRuleParser$SetPropertyRuleFactory
org.apache.commons.digester.xmlrules.DigesterRuleParser$SetRootRuleFactory
org.apache.commons.digester.xmlrules.DigesterRuleParser$SetTopRuleFactory
org.apache.commons.digester.xmlrules.FromXmlRuleSet
org.apache.commons.digester.xmlrules.FromXmlRuleSet$1
org.apache.commons.digester.xmlrules.FromXmlRuleSet$InputSourceXMLRulesLoader
org.apache.commons.digester.xmlrules.FromXmlRuleSet$URLXMLRulesLoader
org.apache.commons.digester.xmlrules.XmlLoadException
 org.apache.commons.digester.plugins.strategies
 java.io
java.lang
java.net
java.util
org.apache.commons.beanutils
org.apache.commons.digester
org.xml.sax

Cycles

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

Package Package Dependencies
org.apache.commons.digester.plugins org.apache.commons.digester.plugins.strategies
org.apache.commons.digester.plugins
org.apache.commons.digester.plugins.strategies org.apache.commons.digester.plugins
org.apache.commons.digester.plugins.strategies

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.