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 ]
Summary
| Package |
TC |
CC |
AC |
Ca |
Ce |
A |
I |
D |
V |
| org.apache.shardingsphere.distsql.segment |
7 |
5 |
2 |
2 |
3 |
29.0% |
60.000004% |
11.0% |
1 |
| org.apache.shardingsphere.distsql.segment.converter |
1 |
1 |
0 |
0 |
5 |
0.0% |
100.0% |
0.0% |
1 |
| org.apache.shardingsphere.distsql.statement |
1 |
0 |
1 |
4 |
1 |
100.0% |
20.0% |
20.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.ral |
2 |
0 |
2 |
2 |
2 |
100.0% |
50.0% |
50.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.ral.queryable |
1 |
0 |
1 |
3 |
1 |
100.0% |
25.0% |
25.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.ral.queryable.convert |
1 |
1 |
0 |
0 |
2 |
0.0% |
100.0% |
0.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.ral.queryable.export |
3 |
3 |
0 |
0 |
6 |
0.0% |
100.0% |
0.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.ral.queryable.show |
7 |
7 |
0 |
0 |
6 |
0.0% |
100.0% |
0.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.ral.updatable |
10 |
9 |
1 |
0 |
5 |
10.0% |
100.0% |
10.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rdl |
1 |
0 |
1 |
2 |
1 |
100.0% |
33.0% |
33.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rdl.resource |
1 |
0 |
1 |
1 |
1 |
100.0% |
50.0% |
50.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rdl.resource.unit |
1 |
0 |
1 |
1 |
1 |
100.0% |
50.0% |
50.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rdl.resource.unit.type |
3 |
3 |
0 |
0 |
2 |
0.0% |
100.0% |
0.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rdl.rule |
1 |
0 |
1 |
2 |
1 |
100.0% |
33.0% |
33.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rdl.rule.aware |
1 |
0 |
1 |
0 |
2 |
100.0% |
100.0% |
100.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rdl.rule.database |
1 |
0 |
1 |
1 |
1 |
100.0% |
50.0% |
50.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rdl.rule.database.type |
3 |
0 |
3 |
0 |
1 |
100.0% |
100.0% |
100.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rdl.rule.global |
1 |
0 |
1 |
0 |
1 |
100.0% |
100.0% |
100.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rql |
1 |
0 |
1 |
2 |
1 |
100.0% |
33.0% |
33.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rql.resource |
4 |
2 |
2 |
0 |
6 |
50.0% |
100.0% |
50.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rql.rule |
1 |
0 |
1 |
2 |
1 |
100.0% |
33.0% |
33.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rql.rule.database |
3 |
2 |
1 |
0 |
5 |
33.0% |
100.0% |
33.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rql.rule.global |
1 |
0 |
1 |
0 |
1 |
100.0% |
100.0% |
100.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rul |
1 |
0 |
1 |
1 |
1 |
100.0% |
50.0% |
50.0% |
1 |
| org.apache.shardingsphere.distsql.statement.type.rul.sql |
2 |
2 |
0 |
0 |
2 |
0.0% |
100.0% |
0.0% |
1 |
Packages
[ summary ] [ packages ] [ cycles ] [ explanations ]
org.apache.shardingsphere.distsql.segment
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 2 |
3 |
29.0% |
60.000004% |
11.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.segment.DataSourceSegment
org.apache.shardingsphere.distsql.segment.DistSQLSegment
|
org.apache.shardingsphere.distsql.segment.AlgorithmSegment
org.apache.shardingsphere.distsql.segment.HostnameAndPortBasedDataSourceSegment
org.apache.shardingsphere.distsql.segment.ReadOrWriteSegment
org.apache.shardingsphere.distsql.segment.TransmissionRuleSegment
org.apache.shardingsphere.distsql.segment.URLBasedDataSourceSegment
|
org.apache.shardingsphere.distsql.segment.converter
org.apache.shardingsphere.distsql.statement.type.ral.updatable
|
java.lang
java.util
org.apache.shardingsphere.sql.parser.api
|
org.apache.shardingsphere.distsql.segment.converter
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
5 |
0.0% |
100.0% |
0.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.distsql.segment.converter.DataSourceSegmentsConverter
|
None |
java.lang
java.util
org.apache.shardingsphere.database.connector.core.type
org.apache.shardingsphere.distsql.segment
org.apache.shardingsphere.infra.datasource.pool.props.domain
|
org.apache.shardingsphere.distsql.statement
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 4 |
1 |
100.0% |
20.0% |
20.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.DistSQLStatement
|
None |
org.apache.shardingsphere.distsql.statement.type.ral
org.apache.shardingsphere.distsql.statement.type.rdl
org.apache.shardingsphere.distsql.statement.type.rql
org.apache.shardingsphere.distsql.statement.type.rul
|
org.apache.shardingsphere.sql.parser.statement.core.statement
|
org.apache.shardingsphere.distsql.statement.type.ral
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 2 |
2 |
100.0% |
50.0% |
50.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.ral.FeaturedRALStatement
org.apache.shardingsphere.distsql.statement.type.ral.RALStatement
|
None |
org.apache.shardingsphere.distsql.statement.type.ral.queryable
org.apache.shardingsphere.distsql.statement.type.ral.updatable
|
java.lang
org.apache.shardingsphere.distsql.statement
|
org.apache.shardingsphere.distsql.statement.type.ral.queryable
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 3 |
1 |
100.0% |
25.0% |
25.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.ral.queryable.QueryableRALStatement
|
None |
org.apache.shardingsphere.distsql.statement.type.ral.queryable.convert
org.apache.shardingsphere.distsql.statement.type.ral.queryable.export
org.apache.shardingsphere.distsql.statement.type.ral.queryable.show
|
org.apache.shardingsphere.distsql.statement.type.ral
|
org.apache.shardingsphere.distsql.statement.type.ral.queryable.convert
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
2 |
0.0% |
100.0% |
0.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.distsql.statement.type.ral.queryable.convert.ConvertYamlConfigurationStatement
|
None |
java.lang
org.apache.shardingsphere.distsql.statement.type.ral.queryable
|
org.apache.shardingsphere.distsql.statement.type.ral.queryable.export
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
6 |
0.0% |
100.0% |
0.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.distsql.statement.type.ral.queryable.export.ExportDatabaseConfigurationStatement
org.apache.shardingsphere.distsql.statement.type.ral.queryable.export.ExportMetaDataStatement
org.apache.shardingsphere.distsql.statement.type.ral.queryable.export.ExportStorageNodesStatement
|
None |
java.lang
java.util
org.apache.shardingsphere.distsql.statement.type.ral.queryable
org.apache.shardingsphere.sql.parser.statement.core.segment.dal
org.apache.shardingsphere.sql.parser.statement.core.statement.attribute
org.apache.shardingsphere.sql.parser.statement.core.statement.attribute.type
|
org.apache.shardingsphere.distsql.statement.type.ral.queryable.show
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
6 |
0.0% |
100.0% |
0.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.distsql.statement.type.ral.queryable.show.ShowComputeNodeInfoStatement
org.apache.shardingsphere.distsql.statement.type.ral.queryable.show.ShowComputeNodeModeStatement
org.apache.shardingsphere.distsql.statement.type.ral.queryable.show.ShowComputeNodesStatement
org.apache.shardingsphere.distsql.statement.type.ral.queryable.show.ShowDistVariableStatement
org.apache.shardingsphere.distsql.statement.type.ral.queryable.show.ShowDistVariablesStatement
org.apache.shardingsphere.distsql.statement.type.ral.queryable.show.ShowPluginsStatement
org.apache.shardingsphere.distsql.statement.type.ral.queryable.show.ShowTableMetaDataStatement
|
None |
java.lang
java.util
org.apache.shardingsphere.distsql.statement.type.ral.queryable
org.apache.shardingsphere.sql.parser.statement.core.segment.dal
org.apache.shardingsphere.sql.parser.statement.core.statement.attribute
org.apache.shardingsphere.sql.parser.statement.core.statement.attribute.type
|
org.apache.shardingsphere.distsql.statement.type.ral.updatable
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
5 |
10.0% |
100.0% |
10.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.ral.updatable.UpdatableRALStatement
|
org.apache.shardingsphere.distsql.statement.type.ral.updatable.AlterComputeNodeStatement
org.apache.shardingsphere.distsql.statement.type.ral.updatable.ImportDatabaseConfigurationStatement
org.apache.shardingsphere.distsql.statement.type.ral.updatable.ImportMetaDataStatement
org.apache.shardingsphere.distsql.statement.type.ral.updatable.LockClusterStatement
org.apache.shardingsphere.distsql.statement.type.ral.updatable.RefreshDatabaseMetaDataStatement
org.apache.shardingsphere.distsql.statement.type.ral.updatable.RefreshTableMetaDataStatement
org.apache.shardingsphere.distsql.statement.type.ral.updatable.SetComputeNodeStateStatement
org.apache.shardingsphere.distsql.statement.type.ral.updatable.SetDistVariableStatement
org.apache.shardingsphere.distsql.statement.type.ral.updatable.UnlockClusterStatement
|
None |
java.lang
java.util
org.apache.shardingsphere.distsql.segment
org.apache.shardingsphere.distsql.statement.type.ral
org.apache.shardingsphere.sql.parser.statement.core.value.identifier
|
org.apache.shardingsphere.distsql.statement.type.rdl
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 2 |
1 |
100.0% |
33.0% |
33.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rdl.RDLStatement
|
None |
org.apache.shardingsphere.distsql.statement.type.rdl.resource
org.apache.shardingsphere.distsql.statement.type.rdl.rule
|
org.apache.shardingsphere.distsql.statement
|
org.apache.shardingsphere.distsql.statement.type.rdl.resource
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 1 |
1 |
100.0% |
50.0% |
50.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rdl.resource.ResourceDefinitionStatement
|
None |
org.apache.shardingsphere.distsql.statement.type.rdl.resource.unit
|
org.apache.shardingsphere.distsql.statement.type.rdl
|
org.apache.shardingsphere.distsql.statement.type.rdl.resource.unit
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 1 |
1 |
100.0% |
50.0% |
50.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rdl.resource.unit.StorageUnitDefinitionStatement
|
None |
org.apache.shardingsphere.distsql.statement.type.rdl.resource.unit.type
|
org.apache.shardingsphere.distsql.statement.type.rdl.resource
|
org.apache.shardingsphere.distsql.statement.type.rdl.resource.unit.type
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
2 |
0.0% |
100.0% |
0.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.distsql.statement.type.rdl.resource.unit.type.AlterStorageUnitStatement
org.apache.shardingsphere.distsql.statement.type.rdl.resource.unit.type.RegisterStorageUnitStatement
org.apache.shardingsphere.distsql.statement.type.rdl.resource.unit.type.UnregisterStorageUnitStatement
|
None |
java.util
org.apache.shardingsphere.distsql.statement.type.rdl.resource.unit
|
org.apache.shardingsphere.distsql.statement.type.rdl.rule
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 2 |
1 |
100.0% |
33.0% |
33.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rdl.rule.RuleDefinitionStatement
|
None |
org.apache.shardingsphere.distsql.statement.type.rdl.rule.database
org.apache.shardingsphere.distsql.statement.type.rdl.rule.global
|
org.apache.shardingsphere.distsql.statement.type.rdl
|
org.apache.shardingsphere.distsql.statement.type.rdl.rule.aware
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
2 |
100.0% |
100.0% |
100.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rdl.rule.aware.StaticDataSourceContainedRuleAwareStatement
|
None |
None |
java.lang
java.util
|
org.apache.shardingsphere.distsql.statement.type.rdl.rule.database
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 1 |
1 |
100.0% |
50.0% |
50.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rdl.rule.database.DatabaseRuleDefinitionStatement
|
None |
org.apache.shardingsphere.distsql.statement.type.rdl.rule.database.type
|
org.apache.shardingsphere.distsql.statement.type.rdl.rule
|
org.apache.shardingsphere.distsql.statement.type.rdl.rule.database.type
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
1 |
100.0% |
100.0% |
100.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rdl.rule.database.type.AlterRuleStatement
org.apache.shardingsphere.distsql.statement.type.rdl.rule.database.type.CreateRuleStatement
org.apache.shardingsphere.distsql.statement.type.rdl.rule.database.type.DropRuleStatement
|
None |
None |
org.apache.shardingsphere.distsql.statement.type.rdl.rule.database
|
org.apache.shardingsphere.distsql.statement.type.rdl.rule.global
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
1 |
100.0% |
100.0% |
100.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rdl.rule.global.GlobalRuleDefinitionStatement
|
None |
None |
org.apache.shardingsphere.distsql.statement.type.rdl.rule
|
org.apache.shardingsphere.distsql.statement.type.rql
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 2 |
1 |
100.0% |
33.0% |
33.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rql.RQLStatement
|
None |
org.apache.shardingsphere.distsql.statement.type.rql.resource
org.apache.shardingsphere.distsql.statement.type.rql.rule
|
org.apache.shardingsphere.distsql.statement
|
org.apache.shardingsphere.distsql.statement.type.rql.resource
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
6 |
50.0% |
100.0% |
50.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rql.resource.ResourceQueryStatement
org.apache.shardingsphere.distsql.statement.type.rql.resource.ShowTablesStatement
|
org.apache.shardingsphere.distsql.statement.type.rql.resource.ShowLogicalTablesStatement
org.apache.shardingsphere.distsql.statement.type.rql.resource.ShowStorageUnitsStatement
|
None |
java.lang
java.util
org.apache.shardingsphere.distsql.statement.type.rql
org.apache.shardingsphere.sql.parser.statement.core.segment.dal
org.apache.shardingsphere.sql.parser.statement.core.statement.attribute
org.apache.shardingsphere.sql.parser.statement.core.statement.attribute.type
|
org.apache.shardingsphere.distsql.statement.type.rql.rule
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 2 |
1 |
100.0% |
33.0% |
33.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rql.rule.RuleQueryStatement
|
None |
org.apache.shardingsphere.distsql.statement.type.rql.rule.database
org.apache.shardingsphere.distsql.statement.type.rql.rule.global
|
org.apache.shardingsphere.distsql.statement.type.rql
|
org.apache.shardingsphere.distsql.statement.type.rql.rule.database
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
5 |
33.0% |
100.0% |
33.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rql.rule.database.ShowDatabaseRulesStatement
|
org.apache.shardingsphere.distsql.statement.type.rql.rule.database.CountRuleStatement
org.apache.shardingsphere.distsql.statement.type.rql.rule.database.ShowRulesUsedStorageUnitStatement
|
None |
java.lang
org.apache.shardingsphere.distsql.statement.type.rql.rule
org.apache.shardingsphere.sql.parser.statement.core.segment.dal
org.apache.shardingsphere.sql.parser.statement.core.statement.attribute
org.apache.shardingsphere.sql.parser.statement.core.statement.attribute.type
|
org.apache.shardingsphere.distsql.statement.type.rql.rule.global
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
1 |
100.0% |
100.0% |
100.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rql.rule.global.ShowGlobalRulesStatement
|
None |
None |
org.apache.shardingsphere.distsql.statement.type.rql.rule
|
org.apache.shardingsphere.distsql.statement.type.rul
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 1 |
1 |
100.0% |
50.0% |
50.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.distsql.statement.type.rul.RULStatement
|
None |
org.apache.shardingsphere.distsql.statement.type.rul.sql
|
org.apache.shardingsphere.distsql.statement
|
org.apache.shardingsphere.distsql.statement.type.rul.sql
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
2 |
0.0% |
100.0% |
0.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.distsql.statement.type.rul.sql.ParseStatement
org.apache.shardingsphere.distsql.statement.type.rul.sql.PreviewStatement
|
None |
java.lang
org.apache.shardingsphere.distsql.statement.type.rul
|
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.
Explanation
| 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. |
