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.bitrepository.alarm 4 3 1 2 16 25.0% 89.0% 14.0% 1
org.bitrepository.alarm.alarmservice 4 4 0 0 11 0.0% 100.0% 0.0% 1
org.bitrepository.alarm.handling 2 1 1 2 6 50.0% 75.0% 25.0% 1
org.bitrepository.alarm.handling.handlers 3 3 0 1 12 0.0% 92.0% 8.0% 1
org.bitrepository.alarm.store 8 7 1 2 10 12.0% 83.0% 4.0% 1

Packages

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

org.bitrepository.alarm

Afferent Couplings Efferent Couplings Abstractness Instability Distance
2 16 25.0% 89.0% 14.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.bitrepository.alarm.AlarmService
org.bitrepository.alarm.AlarmException
org.bitrepository.alarm.AlarmServiceFactory
org.bitrepository.alarm.BasicAlarmService
org.bitrepository.alarm.alarmservice
org.bitrepository.alarm.handling.handlers
java.io
java.lang
java.util
javax.jms
org.bitrepository.alarm.handling
org.bitrepository.alarm.handling.handlers
org.bitrepository.alarm.store
org.bitrepository.bitrepositoryelements
org.bitrepository.common.settings
org.bitrepository.protocol
org.bitrepository.protocol.messagebus
org.bitrepository.protocol.security
org.bitrepository.service
org.bitrepository.service.contributor
org.bitrepository.settings.referencesettings
org.slf4j

org.bitrepository.alarm.alarmservice

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 11 0.0% 100.0% 0.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.bitrepository.alarm.alarmservice.AlarmContextResolver
org.bitrepository.alarm.alarmservice.AlarmServiceContextListener
org.bitrepository.alarm.alarmservice.AlarmServiceInput
org.bitrepository.alarm.alarmservice.RestAlarmService
None com.sun.jersey.api.json
java.lang
java.util
javax.ws.rs.ext
javax.xml.bind
org.bitrepository.alarm
org.bitrepository.bitrepositoryelements
org.bitrepository.common.utils
org.bitrepository.service
org.json
org.slf4j

org.bitrepository.alarm.handling

Afferent Couplings Efferent Couplings Abstractness Instability Distance
2 6 50.0% 75.0% 25.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.bitrepository.alarm.handling.AlarmHandler
org.bitrepository.alarm.handling.AlarmMediator
org.bitrepository.alarm
org.bitrepository.alarm.handling.handlers
java.lang
java.util
org.bitrepository.bitrepositorymessages
org.bitrepository.protocol
org.bitrepository.protocol.messagebus
org.slf4j

org.bitrepository.alarm.handling.handlers

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 12 0.0% 92.0% 8.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.bitrepository.alarm.handling.handlers.AlarmLogger
org.bitrepository.alarm.handling.handlers.AlarmMailer
org.bitrepository.alarm.handling.handlers.AlarmStorer
org.bitrepository.alarm
java.lang
java.net
java.util
javax.mail
javax.mail.internet
org.bitrepository.alarm
org.bitrepository.alarm.handling
org.bitrepository.alarm.store
org.bitrepository.bitrepositoryelements
org.bitrepository.bitrepositorymessages
org.bitrepository.settings.referencesettings
org.slf4j

org.bitrepository.alarm.store

Afferent Couplings Efferent Couplings Abstractness Instability Distance
2 10 12.0% 83.0% 4.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.bitrepository.alarm.store.AlarmStore
org.bitrepository.alarm.store.AlarmDatabaseConstants
org.bitrepository.alarm.store.AlarmDatabaseExtractionModel
org.bitrepository.alarm.store.AlarmDatabaseExtractor
org.bitrepository.alarm.store.AlarmDatabaseIngestor
org.bitrepository.alarm.store.AlarmDatabaseManager
org.bitrepository.alarm.store.AlarmDatabaseMigrator
org.bitrepository.alarm.store.AlarmServiceDAO
org.bitrepository.alarm
org.bitrepository.alarm.handling.handlers
java.lang
java.sql
java.util
org.bitrepository.bitrepositoryelements
org.bitrepository.common
org.bitrepository.common.utils
org.bitrepository.service
org.bitrepository.service.database
org.bitrepository.settings.referencesettings
org.slf4j

Cycles

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

Package Package Dependencies
org.bitrepository.alarm org.bitrepository.alarm.handling.handlers
org.bitrepository.alarm
org.bitrepository.alarm.alarmservice org.bitrepository.alarm
org.bitrepository.alarm.handling.handlers
org.bitrepository.alarm
org.bitrepository.alarm.handling.handlers org.bitrepository.alarm
org.bitrepository.alarm.handling.handlers

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.