Apache Commons logo Commons Validator

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.validator 28 27 1 1 15 4.0% 94.0% 3.0% 1
org.apache.commons.validator.routines 24 21 3 1 7 12.0% 88.0% 0.0% 1
org.apache.commons.validator.routines.checkdigit 13 11 2 1 2 15.000001% 67.0% 18.0% 1
org.apache.commons.validator.util 2 2 0 1 8 0.0% 89.0% 11.0% 1

Packages

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

org.apache.commons.validator

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 15 4.0% 94.0% 3.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.validator.CreditCardValidator$CreditCardType
org.apache.commons.validator.Arg
org.apache.commons.validator.CreditCardValidator
org.apache.commons.validator.CreditCardValidator$1
org.apache.commons.validator.CreditCardValidator$Amex
org.apache.commons.validator.CreditCardValidator$Discover
org.apache.commons.validator.CreditCardValidator$Mastercard
org.apache.commons.validator.CreditCardValidator$Visa
org.apache.commons.validator.DateValidator
org.apache.commons.validator.EmailValidator
org.apache.commons.validator.Field
org.apache.commons.validator.Form
org.apache.commons.validator.FormSet
org.apache.commons.validator.FormSetFactory
org.apache.commons.validator.GenericTypeValidator
org.apache.commons.validator.GenericValidator
org.apache.commons.validator.ISBNValidator
org.apache.commons.validator.Msg
org.apache.commons.validator.UrlValidator
org.apache.commons.validator.Validator
org.apache.commons.validator.ValidatorAction
org.apache.commons.validator.ValidatorException
org.apache.commons.validator.ValidatorResources
org.apache.commons.validator.ValidatorResources$1
org.apache.commons.validator.ValidatorResult
org.apache.commons.validator.ValidatorResult$ResultStatus
org.apache.commons.validator.ValidatorResults
org.apache.commons.validator.Var
org.apache.commons.validator.util
java.io
java.lang
java.lang.reflect
java.net
java.text
java.util
java.util.regex
org.apache.commons.beanutils
org.apache.commons.collections
org.apache.commons.digester
org.apache.commons.digester.xmlrules
org.apache.commons.logging
org.apache.commons.validator.routines
org.apache.commons.validator.util
org.xml.sax

org.apache.commons.validator.routines

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 7 12.0% 88.0% 0.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.validator.routines.AbstractCalendarValidator
org.apache.commons.validator.routines.AbstractFormatValidator
org.apache.commons.validator.routines.AbstractNumberValidator
org.apache.commons.validator.routines.BigDecimalValidator
org.apache.commons.validator.routines.BigIntegerValidator
org.apache.commons.validator.routines.ByteValidator
org.apache.commons.validator.routines.CalendarValidator
org.apache.commons.validator.routines.CodeValidator
org.apache.commons.validator.routines.CreditCardValidator
org.apache.commons.validator.routines.CurrencyValidator
org.apache.commons.validator.routines.DateValidator
org.apache.commons.validator.routines.DomainValidator
org.apache.commons.validator.routines.DoubleValidator
org.apache.commons.validator.routines.EmailValidator
org.apache.commons.validator.routines.FloatValidator
org.apache.commons.validator.routines.ISBNValidator
org.apache.commons.validator.routines.InetAddressValidator
org.apache.commons.validator.routines.IntegerValidator
org.apache.commons.validator.routines.LongValidator
org.apache.commons.validator.routines.PercentValidator
org.apache.commons.validator.routines.RegexValidator
org.apache.commons.validator.routines.ShortValidator
org.apache.commons.validator.routines.TimeValidator
org.apache.commons.validator.routines.UrlValidator
org.apache.commons.validator
java.io
java.lang
java.math
java.text
java.util
java.util.regex
org.apache.commons.validator.routines.checkdigit

org.apache.commons.validator.routines.checkdigit

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 2 15.000001% 67.0% 18.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.validator.routines.checkdigit.CheckDigit
org.apache.commons.validator.routines.checkdigit.ModulusCheckDigit
org.apache.commons.validator.routines.checkdigit.ABANumberCheckDigit
org.apache.commons.validator.routines.checkdigit.CUSIPCheckDigit
org.apache.commons.validator.routines.checkdigit.CheckDigitException
org.apache.commons.validator.routines.checkdigit.EAN13CheckDigit
org.apache.commons.validator.routines.checkdigit.IBANCheckDigit
org.apache.commons.validator.routines.checkdigit.ISBN10CheckDigit
org.apache.commons.validator.routines.checkdigit.ISBNCheckDigit
org.apache.commons.validator.routines.checkdigit.ISINCheckDigit
org.apache.commons.validator.routines.checkdigit.LuhnCheckDigit
org.apache.commons.validator.routines.checkdigit.SedolCheckDigit
org.apache.commons.validator.routines.checkdigit.VerhoeffCheckDigit
org.apache.commons.validator.routines
java.io
java.lang

org.apache.commons.validator.util

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 8 0.0% 89.0% 11.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.apache.commons.validator.util.Flags
org.apache.commons.validator.util.ValidatorUtils
org.apache.commons.validator
java.io
java.lang
java.lang.reflect
java.util
org.apache.commons.beanutils
org.apache.commons.collections
org.apache.commons.logging
org.apache.commons.validator

Cycles

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

Package Package Dependencies
org.apache.commons.validator org.apache.commons.validator.util
org.apache.commons.validator
org.apache.commons.validator.util org.apache.commons.validator
org.apache.commons.validator.util

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.