[ 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
eu.fbk.knowledgestore.datastore.hbase	5	4	1	1	16	20.0%	94.0%	14.0%	1
eu.fbk.knowledgestore.datastore.hbase.exception	2	1	1	0	2	50.0%	100.0%	50.0%	1
eu.fbk.knowledgestore.datastore.hbase.utils	9	7	2	1	26	22.0%	96.0%	19.0%	1

Packages

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

eu.fbk.knowledgestore.datastore.hbase

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	16	20.0%	94.0%	14.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
eu.fbk.knowledgestore.datastore.hbase.package-info	eu.fbk.knowledgestore.datastore.hbase.HBaseDataStore eu.fbk.knowledgestore.datastore.hbase.HBaseDataTransaction eu.fbk.knowledgestore.datastore.hbase.HBaseIterator eu.fbk.knowledgestore.datastore.hbase.HBaseScanIterator	eu.fbk.knowledgestore.datastore.hbase.utils	com.google.common.base com.google.common.collect eu.fbk.knowledgestore.data eu.fbk.knowledgestore.datastore eu.fbk.knowledgestore.datastore.hbase.utils eu.fbk.knowledgestore.runtime eu.fbk.knowledgestore.vocabulary java.io java.lang java.util org.apache.hadoop.conf org.apache.hadoop.fs org.apache.hadoop.hbase.client org.openrdf.model org.openrdf.model.vocabulary org.slf4j

eu.fbk.knowledgestore.datastore.hbase.exception

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	2	50.0%	100.0%	50.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
eu.fbk.knowledgestore.datastore.hbase.exception.package-info	eu.fbk.knowledgestore.datastore.hbase.exception.DataTransactionBlockingException	None	java.io java.lang

eu.fbk.knowledgestore.datastore.hbase.utils

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	26	22.0%	96.0%	19.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
eu.fbk.knowledgestore.datastore.hbase.utils.AbstractHBaseUtils eu.fbk.knowledgestore.datastore.hbase.utils.package-info	eu.fbk.knowledgestore.datastore.hbase.utils.AvroSchemas eu.fbk.knowledgestore.datastore.hbase.utils.AvroSerializer eu.fbk.knowledgestore.datastore.hbase.utils.HBaseConstants eu.fbk.knowledgestore.datastore.hbase.utils.HBaseFilter eu.fbk.knowledgestore.datastore.hbase.utils.HBaseUtils eu.fbk.knowledgestore.datastore.hbase.utils.OmidHBaseUtils eu.fbk.knowledgestore.datastore.hbase.utils.TephraHBaseUtils	eu.fbk.knowledgestore.datastore.hbase	com.continuuity.tephra com.continuuity.tephra.hbase com.continuuity.tephra.inmemory com.google.common.base com.google.common.collect com.yahoo.omid.transaction eu.fbk.knowledgestore.data eu.fbk.knowledgestore.datastore.hbase eu.fbk.knowledgestore.runtime java.io java.lang java.nio java.util javax.xml.datatype org.apache.avro org.apache.avro.generic org.apache.avro.io org.apache.hadoop.conf org.apache.hadoop.hbase org.apache.hadoop.hbase.client org.apache.hadoop.hbase.client.coprocessor org.apache.hadoop.hbase.filter org.apache.hadoop.hbase.util org.openrdf.model org.openrdf.model.vocabulary org.slf4j

Cycles

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

Package	Package Dependencies
eu.fbk.knowledgestore.datastore.hbase	eu.fbk.knowledgestore.datastore.hbase.utils eu.fbk.knowledgestore.datastore.hbase
eu.fbk.knowledgestore.datastore.hbase.utils	eu.fbk.knowledgestore.datastore.hbase eu.fbk.knowledgestore.datastore.hbase.utils

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.