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 ]

PackageTCCCACCaCeAIDV
javax.jmdns153123680.0%67.0%47.0%1
javax.jmdns.impl76661041413.0%78.0%9.0%1
javax.jmdns.impl.constants10100420.0%33.0%67.0%1
javax.jmdns.impl.tasks3213633.0%67.0%0.0%1
javax.jmdns.impl.tasks.resolver4311825.0%89.0%14.0%1
javax.jmdns.impl.tasks.state5411820.0%89.0%9.0%1

Packages

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

javax.jmdns

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
3680.0%67.0%47.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
javax.jmdns.JmDNS
javax.jmdns.JmDNS$Delegate
javax.jmdns.JmmDNS
javax.jmdns.JmmDNS$Factory$ClassDelegate
javax.jmdns.NetworkTopologyDiscovery
javax.jmdns.NetworkTopologyDiscovery$Factory$ClassDelegate
javax.jmdns.NetworkTopologyEvent
javax.jmdns.NetworkTopologyListener
javax.jmdns.ServiceEvent
javax.jmdns.ServiceInfo
javax.jmdns.ServiceListener
javax.jmdns.ServiceTypeListener
javax.jmdns.JmmDNS$Factory
javax.jmdns.NetworkTopologyDiscovery$Factory
javax.jmdns.ServiceInfo$Fields
javax.jmdns.impl
javax.jmdns.impl.tasks.resolver
javax.jmdns.impl.tasks.state
java.io
java.lang
java.net
java.util
java.util.concurrent.atomic
javax.jmdns.impl

javax.jmdns.impl

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
41413.0%78.0%9.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
javax.jmdns.impl.DNSEntry
javax.jmdns.impl.DNSListener
javax.jmdns.impl.DNSMessage
javax.jmdns.impl.DNSRecord
javax.jmdns.impl.DNSRecord$Address
javax.jmdns.impl.DNSStatefulObject
javax.jmdns.impl.DNSTaskStarter
javax.jmdns.impl.DNSTaskStarter$Factory$ClassDelegate
javax.jmdns.impl.NameRegister
javax.jmdns.impl.ServiceInfoImpl$Delegate
javax.jmdns.impl.DNSCache
javax.jmdns.impl.DNSCache$_CacheEntry
javax.jmdns.impl.DNSCache$_EmptyCache
javax.jmdns.impl.DNSIncoming
javax.jmdns.impl.DNSIncoming$1
javax.jmdns.impl.DNSIncoming$MessageInputStream
javax.jmdns.impl.DNSOutgoing
javax.jmdns.impl.DNSOutgoing$MessageOutputStream
javax.jmdns.impl.DNSQuestion
javax.jmdns.impl.DNSQuestion$1
javax.jmdns.impl.DNSQuestion$AllRecords
javax.jmdns.impl.DNSQuestion$DNS4Address
javax.jmdns.impl.DNSQuestion$DNS6Address
javax.jmdns.impl.DNSQuestion$HostInformation
javax.jmdns.impl.DNSQuestion$Pointer
javax.jmdns.impl.DNSQuestion$Service
javax.jmdns.impl.DNSQuestion$Text
javax.jmdns.impl.DNSRecord$HostInformation
javax.jmdns.impl.DNSRecord$IPv4Address
javax.jmdns.impl.DNSRecord$IPv6Address
javax.jmdns.impl.DNSRecord$Pointer
javax.jmdns.impl.DNSRecord$Service
javax.jmdns.impl.DNSRecord$Text
javax.jmdns.impl.DNSStatefulObject$DNSStatefulObjectSemaphore
javax.jmdns.impl.DNSStatefulObject$DefaultImplementation
javax.jmdns.impl.DNSTaskStarter$DNSTaskStarterImpl
javax.jmdns.impl.DNSTaskStarter$DNSTaskStarterImpl$StarterTimer
javax.jmdns.impl.DNSTaskStarter$Factory
javax.jmdns.impl.HostInfo
javax.jmdns.impl.HostInfo$1
javax.jmdns.impl.HostInfo$HostInfoState
javax.jmdns.impl.JmDNSImpl
javax.jmdns.impl.JmDNSImpl$1
javax.jmdns.impl.JmDNSImpl$2
javax.jmdns.impl.JmDNSImpl$3
javax.jmdns.impl.JmDNSImpl$4
javax.jmdns.impl.JmDNSImpl$5
javax.jmdns.impl.JmDNSImpl$6
javax.jmdns.impl.JmDNSImpl$7
javax.jmdns.impl.JmDNSImpl$Operation
javax.jmdns.impl.JmDNSImpl$ServiceCollector
javax.jmdns.impl.JmDNSImpl$ServiceTypeEntry
javax.jmdns.impl.JmDNSImpl$ServiceTypeEntry$SubTypeEntry
javax.jmdns.impl.JmDNSImpl$Shutdown
javax.jmdns.impl.JmmDNSImpl
javax.jmdns.impl.JmmDNSImpl$1
javax.jmdns.impl.JmmDNSImpl$2
javax.jmdns.impl.JmmDNSImpl$3
javax.jmdns.impl.JmmDNSImpl$4
javax.jmdns.impl.JmmDNSImpl$5
javax.jmdns.impl.JmmDNSImpl$6
javax.jmdns.impl.JmmDNSImpl$NetworkChecker
javax.jmdns.impl.ListenerStatus
javax.jmdns.impl.ListenerStatus$ServiceListenerStatus
javax.jmdns.impl.ListenerStatus$ServiceTypeListenerStatus
javax.jmdns.impl.NameRegister$Factory
javax.jmdns.impl.NameRegister$NameType
javax.jmdns.impl.NameRegister$UniqueNameAcrossInterface
javax.jmdns.impl.NameRegister$UniqueNamePerInterface
javax.jmdns.impl.NetworkTopologyDiscoveryImpl
javax.jmdns.impl.NetworkTopologyEventImpl
javax.jmdns.impl.ServiceEventImpl
javax.jmdns.impl.ServiceInfoImpl
javax.jmdns.impl.ServiceInfoImpl$1
javax.jmdns.impl.ServiceInfoImpl$ServiceInfoState
javax.jmdns.impl.SocketListener
javax.jmdns
javax.jmdns.impl.tasks
javax.jmdns.impl.tasks.resolver
javax.jmdns.impl.tasks.state
java.io
java.lang
java.lang.reflect
java.net
java.util
java.util.concurrent
java.util.concurrent.atomic
java.util.concurrent.locks
java.util.logging
javax.jmdns
javax.jmdns.impl.constants
javax.jmdns.impl.tasks
javax.jmdns.impl.tasks.resolver
javax.jmdns.impl.tasks.state

javax.jmdns.impl.constants

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
420.0%33.0%67.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
Nonejavax.jmdns.impl.constants.DNSConstants
javax.jmdns.impl.constants.DNSLabel
javax.jmdns.impl.constants.DNSOperationCode
javax.jmdns.impl.constants.DNSOptionCode
javax.jmdns.impl.constants.DNSRecordClass
javax.jmdns.impl.constants.DNSRecordType
javax.jmdns.impl.constants.DNSResultCode
javax.jmdns.impl.constants.DNSState
javax.jmdns.impl.constants.DNSState$1
javax.jmdns.impl.constants.DNSState$StateClass
javax.jmdns.impl
javax.jmdns.impl.tasks
javax.jmdns.impl.tasks.resolver
javax.jmdns.impl.tasks.state
java.lang
java.util.logging

javax.jmdns.impl.tasks

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
3633.0%67.0%0.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
javax.jmdns.impl.tasks.DNSTask
javax.jmdns.impl.tasks.RecordReaper
javax.jmdns.impl.tasks.Responder
javax.jmdns.impl
javax.jmdns.impl.tasks.resolver
javax.jmdns.impl.tasks.state
java.io
java.lang
java.util
java.util.logging
javax.jmdns.impl
javax.jmdns.impl.constants

javax.jmdns.impl.tasks.resolver

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
1825.0%89.0%14.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
javax.jmdns.impl.tasks.resolver.DNSResolverTask
javax.jmdns.impl.tasks.resolver.ServiceInfoResolver
javax.jmdns.impl.tasks.resolver.ServiceResolver
javax.jmdns.impl.tasks.resolver.TypeResolver
javax.jmdns.impl
java.io
java.lang
java.util
java.util.logging
javax.jmdns
javax.jmdns.impl
javax.jmdns.impl.constants
javax.jmdns.impl.tasks

javax.jmdns.impl.tasks.state

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
1820.0%89.0%9.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
javax.jmdns.impl.tasks.state.DNSStateTask
javax.jmdns.impl.tasks.state.Announcer
javax.jmdns.impl.tasks.state.Canceler
javax.jmdns.impl.tasks.state.Prober
javax.jmdns.impl.tasks.state.Renewer
javax.jmdns.impl
java.io
java.lang
java.util
java.util.logging
javax.jmdns
javax.jmdns.impl
javax.jmdns.impl.constants
javax.jmdns.impl.tasks

Cycles

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

PackagePackage Dependencies
javax.jmdnsjavax.jmdns.impl
javax.jmdns
javax.jmdns.impljavax.jmdns
javax.jmdns.impl
javax.jmdns.impl.tasksjavax.jmdns.impl
javax.jmdns
javax.jmdns.impl
javax.jmdns.impl.tasks.resolverjavax.jmdns.impl.tasks
javax.jmdns.impl
javax.jmdns
javax.jmdns.impl
javax.jmdns.impl.tasks.statejavax.jmdns.impl
javax.jmdns
javax.jmdns.impl

Explanation

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

The following explanations are for quick reference and are lifted directly from the original JDepend documentation.

TermDescription
Number of ClassesThe number of concrete and abstract classes (and interfaces) in the package is an indicator of the extensibility of the package.
Afferent CouplingsThe number of other packages that depend upon classes within the package is an indicator of the package's responsibility.
Efferent CouplingsThe number of other packages that the classes in the package depend upon is an indicator of the package's independence.
AbstractnessThe 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.
InstabilityThe 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.
DistanceThe 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.
CyclesPackages 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.