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Overview
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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 |
|---|---|---|---|---|---|---|---|---|---|
| nextgrid.api.builder | 3 | 2 | 1 | 0 | 10 | 33.0% | 100.0% | 33.0% | 1 |
| nextgrid.api.env | 9 | 4 | 5 | 3 | 7 | 56.0% | 70.0% | 26.0% | 1 |
| nextgrid.api.pem | 7 | 2 | 5 | 2 | 5 | 71.0% | 71.0% | 43.0% | 1 |
| nextgrid.api.pom | 26 | 7 | 19 | 4 | 14 | 73.0% | 78.0% | 51.0% | 1 |
| nextgrid.api.ram | 3 | 1 | 2 | 0 | 6 | 67.0% | 100.0% | 67.0% | 1 |
Packages
[ summary ] [ packages ] [ cycles ] [ explanations ]nextgrid.api.builder
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 0 | 10 | 33.0% | 100.0% | 33.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| nextgrid.api.builder.POMBuilder |
nextgrid.api.builder.BuildException nextgrid.api.builder.POMBuilderFinder |
None | java.io java.lang java.net java.util java.util.concurrent nextgrid.api.pom org.apache.commons.discovery org.apache.commons.discovery.resource org.apache.commons.discovery.resource.names org.apache.commons.logging |
nextgrid.api.env
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 3 | 7 | 56.0% | 70.0% | 26.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| nextgrid.api.env.Prioritiser nextgrid.api.env.ProcessDiscoverer nextgrid.api.env.ProcessEnvironment nextgrid.api.env.ProcessSelector nextgrid.api.env.STSModule |
nextgrid.api.env.DiscoveryException nextgrid.api.env.PriorityException nextgrid.api.env.STSFailureException nextgrid.api.env.SelectionException |
nextgrid.api.pem nextgrid.api.pom nextgrid.api.ram |
java.io java.lang java.net java.util nextgrid.api.pem nextgrid.api.pom org.w3c.dom |
nextgrid.api.pem
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 2 | 5 | 71.0% | 71.0% | 43.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| nextgrid.api.pem.ControlListener nextgrid.api.pem.DiscoveryListener nextgrid.api.pem.POMEvent nextgrid.api.pem.POMListener nextgrid.api.pem.ProcessListener |
nextgrid.api.pem.DiscoveryEvent nextgrid.api.pem.ProcessEvent |
nextgrid.api.env nextgrid.api.pom |
java.io java.lang java.util nextgrid.api.env nextgrid.api.pom |
nextgrid.api.pom
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 4 | 14 | 73.0% | 78.0% | 51.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| nextgrid.api.pom.AbstractProcess nextgrid.api.pom.AsyncProcess nextgrid.api.pom.ControlProcess nextgrid.api.pom.DoWhileProcess nextgrid.api.pom.Expression nextgrid.api.pom.Grounding nextgrid.api.pom.GroundingFactory nextgrid.api.pom.IfThenElseProcess nextgrid.api.pom.LoopProcess nextgrid.api.pom.Process nextgrid.api.pom.ProcessController nextgrid.api.pom.ProcessFactory nextgrid.api.pom.Reference nextgrid.api.pom.RepeatUntilProcess nextgrid.api.pom.SequenceProcess nextgrid.api.pom.Service nextgrid.api.pom.SplitJoinProcess nextgrid.api.pom.UnorderedListProcess nextgrid.api.pom.WhileDoProcess |
nextgrid.api.pom.ExpressionException nextgrid.api.pom.GroundingFactoryFinder nextgrid.api.pom.ProcessController$State nextgrid.api.pom.ProcessException nextgrid.api.pom.ProcessFactoryFinder nextgrid.api.pom.Query nextgrid.api.pom.QueryProfile |
nextgrid.api.builder nextgrid.api.env nextgrid.api.pem nextgrid.api.ram |
java.io java.lang java.net java.util java.util.concurrent java.util.concurrent.locks javax.xml.namespace nextgrid.api.env nextgrid.api.pem org.apache.commons.discovery org.apache.commons.discovery.resource org.apache.commons.discovery.resource.names org.apache.commons.discovery.tools org.apache.commons.logging |
nextgrid.api.ram
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 0 | 6 | 67.0% | 100.0% | 67.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| nextgrid.api.ram.Discoverer nextgrid.api.ram.Registry |
nextgrid.api.ram.RegistryException |
None | java.io java.lang java.net java.util nextgrid.api.env nextgrid.api.pom |
Cycles
[ summary ] [ packages ] [ cycles ] [ explanations ]| Package | Package Dependencies |
|---|---|
| nextgrid.api.builder | nextgrid.api.pom nextgrid.api.env nextgrid.api.pom |
| nextgrid.api.env | nextgrid.api.pom nextgrid.api.env |
| nextgrid.api.pem | nextgrid.api.pom nextgrid.api.env nextgrid.api.pom |
| nextgrid.api.pom | nextgrid.api.env nextgrid.api.pom |
| nextgrid.api.ram | nextgrid.api.env nextgrid.api.pom nextgrid.api.env |
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. |