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.service 5 3 2 1 13 40.0% 93.0% 33.0% 1
org.bitrepository.service.audit 7 6 1 2 11 14.0% 85.0% 1.0% 1
org.bitrepository.service.contributor 8 6 2 2 16 25.0% 89.0% 14.0% 1
org.bitrepository.service.contributor.handler 6 4 2 1 20 33.0% 95.0% 29.0% 1
org.bitrepository.service.database 7 5 2 1 9 29.0% 90.0% 19.0% 1
org.bitrepository.service.exception 4 3 1 2 2 25.0% 50.0% 25.0% 1
org.bitrepository.service.scheduler 3 1 2 1 5 67.0% 83.0% 50.0% 1
org.bitrepository.service.workflow 10 4 6 1 6 60.000004% 86.0% 46.0% 1

Packages

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

org.bitrepository.service

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 13 40.0% 93.0% 33.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.bitrepository.service.AbstractBitrepositoryContextListener
org.bitrepository.service.LifeCycledService
 org.bitrepository.service.AlarmDispatcher
org.bitrepository.service.ServiceSettingsProvider
org.bitrepository.service.ServiceSettingsProvider$1
 org.bitrepository.service.contributor
 java.lang
java.util
javax.servlet
org.bitrepository.bitrepositoryelements
org.bitrepository.bitrepositorymessages
org.bitrepository.common
org.bitrepository.common.settings
org.bitrepository.common.utils
org.bitrepository.protocol.messagebus
org.bitrepository.protocol.utils
org.bitrepository.service.contributor
org.bitrepository.settings.referencesettings
org.slf4j

org.bitrepository.service.audit

Afferent Couplings Efferent Couplings Abstractness Instability Distance
2 11 14.0% 85.0% 1.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.bitrepository.service.audit.AuditTrailManager
 org.bitrepository.service.audit.AuditDatabaseConstants
org.bitrepository.service.audit.AuditDatabaseManager
org.bitrepository.service.audit.AuditTrailContributerDAO
org.bitrepository.service.audit.AuditTrailContributerDAO$AuditTrailExtractor
org.bitrepository.service.audit.AuditTrailContributorDatabaseMigrator
org.bitrepository.service.audit.AuditTrailDatabaseResults
 org.bitrepository.service.contributor
org.bitrepository.service.contributor.handler
 java.lang
java.math
java.sql
java.util
org.bitrepository.bitrepositoryelements
org.bitrepository.common
org.bitrepository.common.settings
org.bitrepository.common.utils
org.bitrepository.service.database
org.bitrepository.settings.referencesettings
org.slf4j

org.bitrepository.service.contributor

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.service.contributor.AbstractContributorMediator
org.bitrepository.service.contributor.ContributorMediator
 org.bitrepository.service.contributor.AbstractContributorMediator$1
org.bitrepository.service.contributor.AbstractContributorMediator$GeneralRequestHandler
org.bitrepository.service.contributor.ContributorContext
org.bitrepository.service.contributor.MessageDispatcher
org.bitrepository.service.contributor.ResponseDispatcher
org.bitrepository.service.contributor.SimpleContributorMediator
 org.bitrepository.service
org.bitrepository.service.contributor.handler
 java.io
java.lang
java.util
org.bitrepository.bitrepositoryelements
org.bitrepository.bitrepositorymessages
org.bitrepository.common
org.bitrepository.common.settings
org.bitrepository.protocol
org.bitrepository.protocol.messagebus
org.bitrepository.protocol.utils
org.bitrepository.protocolversiondefinition
org.bitrepository.service
org.bitrepository.service.audit
org.bitrepository.service.contributor.handler
org.bitrepository.service.exception
org.slf4j

org.bitrepository.service.contributor.handler

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 20 33.0% 95.0% 29.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.bitrepository.service.contributor.handler.AbstractRequestHandler
org.bitrepository.service.contributor.handler.RequestHandler
 org.bitrepository.service.contributor.handler.GetAuditTrailsRequestHandler
org.bitrepository.service.contributor.handler.GetStatusRequestHandler
org.bitrepository.service.contributor.handler.IdentifyContributorsForGetAuditTrailsRequestHandler
org.bitrepository.service.contributor.handler.IdentifyContributorsForGetStatusRequestHandler
 org.bitrepository.service.contributor
 java.io
java.lang
java.math
java.net
java.util
javax.xml.bind
org.apache.activemq.util
org.bitrepository.bitrepositorydata
org.bitrepository.bitrepositoryelements
org.bitrepository.bitrepositorymessages
org.bitrepository.common
org.bitrepository.common.settings
org.bitrepository.common.utils
org.bitrepository.protocol
org.bitrepository.protocolversiondefinition
org.bitrepository.service.audit
org.bitrepository.service.contributor
org.bitrepository.service.exception
org.slf4j
org.xml.sax

org.bitrepository.service.database

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 9 29.0% 90.0% 19.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.bitrepository.service.database.DatabaseManager
org.bitrepository.service.database.DatabaseMigrator
 org.bitrepository.service.database.DBConnector
org.bitrepository.service.database.DatabaseCreator
org.bitrepository.service.database.DatabaseMaintainer
org.bitrepository.service.database.DatabaseUtils
org.bitrepository.service.database.SqlScriptRunner
 org.bitrepository.service.audit
 com.mchange.v2.c3p0
java.io
java.lang
java.sql
java.util
org.bitrepository.common
org.bitrepository.common.settings
org.bitrepository.settings.referencesettings
org.slf4j

org.bitrepository.service.exception

Afferent Couplings Efferent Couplings Abstractness Instability Distance
2 2 25.0% 50.0% 25.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.bitrepository.service.exception.RequestHandlerException
 org.bitrepository.service.exception.IdentifyContributorException
org.bitrepository.service.exception.IllegalOperationException
org.bitrepository.service.exception.InvalidMessageException
 org.bitrepository.service.contributor
org.bitrepository.service.contributor.handler
 java.lang
org.bitrepository.bitrepositoryelements

org.bitrepository.service.scheduler

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 5 67.0% 83.0% 50.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.bitrepository.service.scheduler.JobEventListener
org.bitrepository.service.scheduler.JobScheduler
 org.bitrepository.service.scheduler.TimerbasedScheduler
 org.bitrepository.service.workflow
 java.lang
java.util
org.bitrepository.common.utils
org.bitrepository.service.workflow
org.slf4j

org.bitrepository.service.workflow

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 6 60.000004% 86.0% 46.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.bitrepository.service.workflow.AbstractWorkFlowStep
org.bitrepository.service.workflow.SchedulableJob
org.bitrepository.service.workflow.Workflow
org.bitrepository.service.workflow.WorkflowContext
org.bitrepository.service.workflow.WorkflowManager
org.bitrepository.service.workflow.WorkflowStep
 org.bitrepository.service.workflow.JobID
org.bitrepository.service.workflow.JobTimerTask
org.bitrepository.service.workflow.WorkflowManager$WorkflowEventListener
org.bitrepository.service.workflow.WorkflowStatistic
 org.bitrepository.service.scheduler
 java.lang
java.util
org.bitrepository.common.utils
org.bitrepository.service.scheduler
org.bitrepository.settings.referencesettings
org.slf4j

Cycles

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

Package Package Dependencies
org.bitrepository.service org.bitrepository.service.contributor
org.bitrepository.service.contributor.handler
org.bitrepository.service.contributor
org.bitrepository.service.contributor org.bitrepository.service.contributor.handler
org.bitrepository.service.contributor
org.bitrepository.service.contributor.handler org.bitrepository.service.contributor
org.bitrepository.service.contributor.handler
org.bitrepository.service.scheduler org.bitrepository.service.workflow
org.bitrepository.service.scheduler
org.bitrepository.service.workflow org.bitrepository.service.scheduler
org.bitrepository.service.workflow

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.