Geometry – JDepend Report Metrics

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.geometry.core	8	1	7	3	2	88.0%	40.0%	27.000002%	1
org.apache.commons.geometry.core.internal	8	4	4	1	5	50.0%	83.0%	33.0%	1
org.apache.commons.geometry.core.partitioning	14	5	9	2	6	64.0%	75.0%	39.0%	1
org.apache.commons.geometry.core.partitioning.bsp	28	17	11	0	6	39.0%	100.0%	39.0%	1

Packages

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

org.apache.commons.geometry.core

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
3	2	88.0%	40.0%	27.000002%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.commons.geometry.core.Point org.apache.commons.geometry.core.Region org.apache.commons.geometry.core.RegionEmbedding org.apache.commons.geometry.core.Sized org.apache.commons.geometry.core.Spatial org.apache.commons.geometry.core.Transform org.apache.commons.geometry.core.Vector	org.apache.commons.geometry.core.RegionLocation	org.apache.commons.geometry.core.internal org.apache.commons.geometry.core.partitioning org.apache.commons.geometry.core.partitioning.bsp	java.lang java.util.function

org.apache.commons.geometry.core.internal

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	5	50.0%	83.0%	33.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.commons.geometry.core.internal.DoubleFunction1N org.apache.commons.geometry.core.internal.DoubleFunction2N org.apache.commons.geometry.core.internal.DoubleFunction3N org.apache.commons.geometry.core.internal.IteratorTransform	org.apache.commons.geometry.core.internal.GeometryInternalError org.apache.commons.geometry.core.internal.HyperplaneSubsets org.apache.commons.geometry.core.internal.SimpleTupleFormat org.apache.commons.geometry.core.internal.SimpleTupleFormat$TupleParseException	org.apache.commons.geometry.core.partitioning.bsp	java.lang java.text java.util org.apache.commons.geometry.core org.apache.commons.geometry.core.partitioning

org.apache.commons.geometry.core.partitioning

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
2	6	64.0%	75.0%	39.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.commons.geometry.core.partitioning.AbstractConvexHyperplaneBoundedRegion org.apache.commons.geometry.core.partitioning.AbstractHyperplane org.apache.commons.geometry.core.partitioning.BoundarySource org.apache.commons.geometry.core.partitioning.EmbeddingHyperplane org.apache.commons.geometry.core.partitioning.Hyperplane org.apache.commons.geometry.core.partitioning.HyperplaneBoundedRegion org.apache.commons.geometry.core.partitioning.HyperplaneConvexSubset org.apache.commons.geometry.core.partitioning.HyperplaneSubset org.apache.commons.geometry.core.partitioning.Splittable	org.apache.commons.geometry.core.partitioning.AbstractConvexHyperplaneBoundedRegion$ConvexRegionBoundaryBuilder org.apache.commons.geometry.core.partitioning.BoundaryList org.apache.commons.geometry.core.partitioning.HyperplaneLocation org.apache.commons.geometry.core.partitioning.Split org.apache.commons.geometry.core.partitioning.SplitLocation	org.apache.commons.geometry.core.internal org.apache.commons.geometry.core.partitioning.bsp	java.lang java.util java.util.function java.util.stream org.apache.commons.geometry.core org.apache.commons.numbers.core

org.apache.commons.geometry.core.partitioning.bsp

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	6	39.0%	100.0%	39.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.commons.geometry.core.partitioning.bsp.AbstractBSPTree$SubtreeInitializer org.apache.commons.geometry.core.partitioning.bsp.AbstractBSPTreeMergeOperator org.apache.commons.geometry.core.partitioning.bsp.AbstractRegionBSPTree$AbstractRegionNode org.apache.commons.geometry.core.partitioning.bsp.AbstractRegionBSPTree$RegionMergeOperator org.apache.commons.geometry.core.partitioning.bsp.BSPSubtree org.apache.commons.geometry.core.partitioning.bsp.BSPTree org.apache.commons.geometry.core.partitioning.bsp.BSPTree$Node org.apache.commons.geometry.core.partitioning.bsp.BSPTreeVisitor org.apache.commons.geometry.core.partitioning.bsp.BSPTreeVisitor$ClosestFirstVisitor org.apache.commons.geometry.core.partitioning.bsp.BSPTreeVisitor$FarthestFirstVisitor org.apache.commons.geometry.core.partitioning.bsp.BSPTreeVisitor$TargetPointVisitor	org.apache.commons.geometry.core.partitioning.bsp.AbstractBSPTree$1 org.apache.commons.geometry.core.partitioning.bsp.AbstractBSPTree$NodeIterator org.apache.commons.geometry.core.partitioning.bsp.AbstractRegionBSPTree$1 org.apache.commons.geometry.core.partitioning.bsp.AbstractRegionBSPTree$BoundaryProjector org.apache.commons.geometry.core.partitioning.bsp.AbstractRegionBSPTree$Condenser org.apache.commons.geometry.core.partitioning.bsp.AbstractRegionBSPTree$DifferenceOperator org.apache.commons.geometry.core.partitioning.bsp.AbstractRegionBSPTree$IntersectionOperator org.apache.commons.geometry.core.partitioning.bsp.AbstractRegionBSPTree$RegionBoundaryIterator org.apache.commons.geometry.core.partitioning.bsp.AbstractRegionBSPTree$RegionSizeProperties org.apache.commons.geometry.core.partitioning.bsp.AbstractRegionBSPTree$UnionOperator org.apache.commons.geometry.core.partitioning.bsp.AbstractRegionBSPTree$XorOperator org.apache.commons.geometry.core.partitioning.bsp.BSPTree$FindNodeCutRule org.apache.commons.geometry.core.partitioning.bsp.BSPTreePrinter org.apache.commons.geometry.core.partitioning.bsp.BSPTreeVisitor$Order org.apache.commons.geometry.core.partitioning.bsp.BSPTreeVisitor$Result org.apache.commons.geometry.core.partitioning.bsp.RegionCutBoundary org.apache.commons.geometry.core.partitioning.bsp.RegionCutRule	None	java.lang java.util java.util.function org.apache.commons.geometry.core org.apache.commons.geometry.core.internal org.apache.commons.geometry.core.partitioning

Cycles

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

There are no cyclic dependencies.

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.