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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
io.github.prolobjectlink.prolog 74 23 51 1 9 69.0% 90.0% 58.999996% 1
io.github.prolobjectlink.prolog.spi 1 1 0 0 2 0.0% 100.0% 0.0% 1

Packages

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

io.github.prolobjectlink.prolog

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 9 69.0% 90.0% 58.999996%
Abstract Classes Concrete Classes Used by Packages Uses Packages
io.github.prolobjectlink.prolog.AbstractBuilder
io.github.prolobjectlink.prolog.AbstractClause
io.github.prolobjectlink.prolog.AbstractCompounds
io.github.prolobjectlink.prolog.AbstractConsole
io.github.prolobjectlink.prolog.AbstractConverter
io.github.prolobjectlink.prolog.AbstractEngine
io.github.prolobjectlink.prolog.AbstractIterator
io.github.prolobjectlink.prolog.AbstractJavaConverter
io.github.prolobjectlink.prolog.AbstractLogger
io.github.prolobjectlink.prolog.AbstractOperator
io.github.prolobjectlink.prolog.AbstractProgram
io.github.prolobjectlink.prolog.AbstractProvider
io.github.prolobjectlink.prolog.AbstractQuery
io.github.prolobjectlink.prolog.AbstractTerm
io.github.prolobjectlink.prolog.PrologAtom
io.github.prolobjectlink.prolog.PrologBuilder
io.github.prolobjectlink.prolog.PrologBuiltin
io.github.prolobjectlink.prolog.PrologClause
io.github.prolobjectlink.prolog.PrologClauseBuilder
io.github.prolobjectlink.prolog.PrologClauses
io.github.prolobjectlink.prolog.PrologConsole
io.github.prolobjectlink.prolog.PrologConverter
io.github.prolobjectlink.prolog.PrologDocumentable
io.github.prolobjectlink.prolog.PrologDouble
io.github.prolobjectlink.prolog.PrologElement
io.github.prolobjectlink.prolog.PrologEngine
io.github.prolobjectlink.prolog.PrologEntry
io.github.prolobjectlink.prolog.PrologFloat
io.github.prolobjectlink.prolog.PrologFormatter
io.github.prolobjectlink.prolog.PrologIndicator
io.github.prolobjectlink.prolog.PrologInteger
io.github.prolobjectlink.prolog.PrologJavaConverter
io.github.prolobjectlink.prolog.PrologList
io.github.prolobjectlink.prolog.PrologLogger
io.github.prolobjectlink.prolog.PrologLong
io.github.prolobjectlink.prolog.PrologMap
io.github.prolobjectlink.prolog.PrologMapper
io.github.prolobjectlink.prolog.PrologNumber
io.github.prolobjectlink.prolog.PrologOperator
io.github.prolobjectlink.prolog.PrologOperatorSet
io.github.prolobjectlink.prolog.PrologParser
io.github.prolobjectlink.prolog.PrologProgram
io.github.prolobjectlink.prolog.PrologProvider
io.github.prolobjectlink.prolog.PrologQuery
io.github.prolobjectlink.prolog.PrologQueryBuilder
io.github.prolobjectlink.prolog.PrologReference
io.github.prolobjectlink.prolog.PrologScriptEngineFactory
io.github.prolobjectlink.prolog.PrologStructure
io.github.prolobjectlink.prolog.PrologTerm
io.github.prolobjectlink.prolog.PrologType
io.github.prolobjectlink.prolog.PrologVariable
io.github.prolobjectlink.prolog.AbstractClause$BodyIterator
io.github.prolobjectlink.prolog.AbstractEngine$PrologProgramIterator
io.github.prolobjectlink.prolog.AbstractIndicator
io.github.prolobjectlink.prolog.ArityError
io.github.prolobjectlink.prolog.ArrayIterator
io.github.prolobjectlink.prolog.CompoundExpectedError
io.github.prolobjectlink.prolog.DefaultClauseBuilder
io.github.prolobjectlink.prolog.DefaultPrologIndicator
io.github.prolobjectlink.prolog.DefaultQueryBuilder
io.github.prolobjectlink.prolog.FunctorError
io.github.prolobjectlink.prolog.IndicatorError
io.github.prolobjectlink.prolog.Licenses
io.github.prolobjectlink.prolog.ListExpectedError
io.github.prolobjectlink.prolog.Prolog
io.github.prolobjectlink.prolog.PrologCallable
io.github.prolobjectlink.prolog.PrologError
io.github.prolobjectlink.prolog.PrologQueryIterator
io.github.prolobjectlink.prolog.PrologRunnable
io.github.prolobjectlink.prolog.PrologScriptEngine
io.github.prolobjectlink.prolog.PrologTermType
io.github.prolobjectlink.prolog.StructureExpectedError
io.github.prolobjectlink.prolog.SyntaxError
io.github.prolobjectlink.prolog.UnknownTermError
io.github.prolobjectlink.prolog.spi
java.io
java.lang
java.lang.reflect
java.net
java.security
java.util
java.util.concurrent
java.util.logging
javax.script

io.github.prolobjectlink.prolog.spi

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 2 0.0% 100.0% 0.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None io.github.prolobjectlink.prolog.spi.ServiceProviderLocator
None io.github.prolobjectlink.prolog
java.lang

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.