About Us Home Contributors License Components Sandbox Jelly Overview FAQ Getting Started Tutorial Detail JellyDoc Download Tag Reference Community IRC Powered By To Do List Features JellyUnit JellySwing JellySWT XML Pipeline Core Tags Tag Libraries Change Log Changes Checkstyle Developer Activity File Activity JavaDocs JavaDoc Report JavaDoc Warnings Report JCoverage Metrics Unit Tests Source Xref Test Xref Project License PMD Report Task List General Information Charter Volunteering Contributing Patches Releasing Components Jakarta Community Get Involved Mailing Lists Commons Resources (Unofficial) Wiki Japanese Translation Korean Translation Related DB Commons XML Commons | ### Metric Results [ summary] [ packages] [ cycles] [ explanations] The following document contains the results of a JDependmetric analysis. The various metrics are defined at the bottom of this document. ### Summary [ summary] [ packages] [ cycles] [ explanations]
Package | TC | AC | CC | AC | EC | A | I | D
--- | --- | --- | --- | --- | --- | --- | --- | ---
org.apache.commons.jelly | 19 | 11 | 8 | 10 | 14 | 0.58 | 58% | 16%
org.apache.commons.jelly.expression | 5 | 3 | 2 | 6 | 5 | 0.6 | 45% | 5%
org.apache.commons.jelly.expression.jexl | 5 | 0 | 5 | 1 | 6 | 0 | 86% | 14%
org.apache.commons.jelly.expression.xpath | 1 | 0 | 1 | 0 | 8 | 0 | 100% | 0%
org.apache.commons.jelly.impl | 21 | 4 | 17 | 5 | 17 | 0.19 | 77% | 4%
org.apache.commons.jelly.parser | 3 | 0 | 3 | 3 | 14 | 0 | 82% | 18%
org.apache.commons.jelly.servlet | 2 | 0 | 2 | 0 | 6 | 0 | 100% | 0%
org.apache.commons.jelly.tags | 1 | 0 | 1 | 0 | 3 | 0 | 100% | 0%
org.apache.commons.jelly.tags.core | 44 | 2 | 42 | 0 | 17 | 0.05 | 100% | 5%
org.apache.commons.jelly.test | 1 | 1 | 0 | 0 | 4 | 1 | 100% | 100%
org.apache.commons.jelly.util | 7 | 0 | 7 | 5 | 9 | 0 | 64% | 36%
org.apache.commons.jelly.xpath | 4 | 2 | 2 | 0 | 6 | 0.5 | 100% | 50%
### Packages [ summary] [ packages] [ cycles] [ explanations] #### org.apache.commons.jelly
Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
10 | 14 | 58% | 58% | 16%
Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
CompilableTag DynaBeanTagSupport DynaTag DynaTagSupport LocationAware MapTagSupport NamespaceAwareTag Script Tag TagLibrary TagSupport | Jelly JellyContext JellyException JellyTagException MissingAttributeException TagLibrary$1 XMLOutput XMLOutput$1 | org.apache.commons.jelly.expression org.apache.commons.jelly.expression.jexl org.apache.commons.jelly.expression.xpath org.apache.commons.jelly.impl org.apache.commons.jelly.parser org.apache.commons.jelly.servlet org.apache.commons.jelly.tags.core org.apache.commons.jelly.test org.apache.commons.jelly.util org.apache.commons.jelly.xpath | java.io java.lang java.net java.util org.apache.commons.beanutils org.apache.commons.jelly.expression org.apache.commons.jelly.impl org.apache.commons.jelly.parser org.apache.commons.jelly.util org.apache.commons.logging org.dom4j.io org.xml.sax org.xml.sax.ext org.xml.sax.helpers
#### org.apache.commons.jelly.expression
Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
6 | 5 | 60% | 45% | 5%
Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
Expression ExpressionFactory ExpressionSupport | CompositeExpression ConstantExpression | org.apache.commons.jelly org.apache.commons.jelly.expression.jexl org.apache.commons.jelly.expression.xpath org.apache.commons.jelly.impl org.apache.commons.jelly.parser org.apache.commons.jelly.tags.core | java.lang java.util org.apache.commons.collections.iterators org.apache.commons.jelly org.apache.commons.lang
#### org.apache.commons.jelly.expression.jexl
Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
1 | 6 | 0% | 86% | 14%
Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
None | JellyJexlContext JellyMap JexlExpression JexlExpressionFactory JexlExpressionFactory$ExpressionSupportLocal | org.apache.commons.jelly.parser | java.lang java.util org.apache.commons.jelly org.apache.commons.jelly.expression org.apache.commons.jexl org.apache.commons.logging
#### org.apache.commons.jelly.expression.xpath
Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
0 | 8 | 0% | 100% | 0%
Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
None | XPathExpression | None | java.lang java.util org.apache.commons.jelly org.apache.commons.jelly.expression org.apache.commons.jelly.impl org.apache.commons.logging org.jaxen org.jaxen.dom4j
#### org.apache.commons.jelly.impl
Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
5 | 17 | 19% | 77% | 4%
Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
BeanSource CollectionTag TagFactory TagLibraryResolver | Attribute BreakException CompositeTextScriptBlock DefaultTagFactory DefaultTagLibraryResolver DynamicBeanTag DynamicDynaBeanTag DynamicTag DynamicTagLibrary DynamicTagLibrary$1 Embedded ExpressionScript ScriptBlock StaticTag StaticTagScript TagScript TextScript | org.apache.commons.jelly org.apache.commons.jelly.expression.xpath org.apache.commons.jelly.parser org.apache.commons.jelly.tags.core org.apache.commons.jelly.util | java.io java.lang java.lang.reflect java.net java.util org.apache.commons.beanutils org.apache.commons.collections org.apache.commons.discovery org.apache.commons.discovery.resource org.apache.commons.discovery.resource.classes org.apache.commons.jelly org.apache.commons.jelly.expression org.apache.commons.jelly.parser org.apache.commons.jelly.util org.apache.commons.logging org.xml.sax org.xml.sax.helpers
#### org.apache.commons.jelly.parser
Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
3 | 14 | 0% | 82% | 18%
Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
None | DefaultNamespaceFilter XMLParser XMLParser$1 | org.apache.commons.jelly org.apache.commons.jelly.impl org.apache.commons.jelly.tags.core | java.io java.lang java.net java.util javax.xml.parsers org.apache.commons.collections org.apache.commons.jelly org.apache.commons.jelly.expression org.apache.commons.jelly.expression.jexl org.apache.commons.jelly.impl org.apache.commons.jelly.util org.apache.commons.logging org.xml.sax org.xml.sax.helpers
#### org.apache.commons.jelly.servlet
Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
0 | 6 | 0% | 100% | 0%
Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
None | JellyServlet JellyServletContext | None | java.io java.lang java.net javax.servlet javax.servlet.http org.apache.commons.jelly
#### org.apache.commons.jelly.tags
Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
0 | 3 | 0% | 100% | 0%
Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
None | Resources | None | java.lang java.text java.util
#### org.apache.commons.jelly.tags.core
Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
0 | 17 | 5% | 100% | 5%
Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
ArgTagParent BaseClassLoaderTag | ArgTag ArgTag$1 ArgTag$2 ArgTag$3 ArgTag$4 ArgTag$5 ArgTag$6 BreakTag CaseTag CatchTag ChooseTag CoreTagLibrary DefaultTag ExprTag FileTag FileTag$1 ForEachTag ForEachTag$LoopStatus GetStaticTag IfTag ImportTag IncludeTag InvokeStaticTag InvokeTag JellyTag MuteTag MuteTag$MuteXMLOutput NewTag OtherwiseTag ParseTag RemoveTag ScopeTag SetPropertiesTag SetTag SwitchTag ThreadTag ThreadTag$1 UseBeanTag UseListTag WhenTag WhileTag WhitespaceTag | None | java.io java.lang java.lang.reflect java.util javax.servlet.jsp.jstl.core javax.xml.parsers org.apache.commons.beanutils org.apache.commons.beanutils.converters org.apache.commons.jelly org.apache.commons.jelly.expression org.apache.commons.jelly.impl org.apache.commons.jelly.parser org.apache.commons.jelly.util org.apache.commons.logging org.dom4j.io org.xml.sax org.xml.sax.helpers
#### org.apache.commons.jelly.test
Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
0 | 4 | 100% | 100% | 100%
Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
BaseJellyTest | None | None | java.lang java.net junit.framework org.apache.commons.jelly
#### org.apache.commons.jelly.util
Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
5 | 9 | 0% | 64% | 36%
Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
None | ClassLoaderUtils CommandLineParser CommandLineParser$1 CommandLineParser$2 NestedRuntimeException SafeContentHandler TagUtils | org.apache.commons.jelly org.apache.commons.jelly.impl org.apache.commons.jelly.parser org.apache.commons.jelly.tags.core org.apache.commons.jelly.xpath | java.io java.lang java.util javax.swing org.apache.commons.cli org.apache.commons.jelly org.apache.commons.jelly.impl org.apache.commons.logging org.xml.sax
#### org.apache.commons.jelly.xpath
Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
0 | 6 | 50% | 100% | 50%
Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
XPathSource XPathTagSupport | XPathComparator XPathComparator$XPathSortException | None | java.lang java.util org.apache.commons.jelly org.apache.commons.jelly.util org.dom4j org.jaxen
### Cycles [ summary] [ packages] [ cycles] [ explanations]
Package | Cyclic Dependencies
--- | ---
org.apache.commons.jelly | org.apache.commons.jelly.util org.apache.commons.jelly
org.apache.commons.jelly.expression | org.apache.commons.jelly org.apache.commons.jelly.util org.apache.commons.jelly
org.apache.commons.jelly.expression.jexl | org.apache.commons.jelly org.apache.commons.jelly.util org.apache.commons.jelly
org.apache.commons.jelly.expression.xpath | org.apache.commons.jelly.expression org.apache.commons.jelly org.apache.commons.jelly.util org.apache.commons.jelly
org.apache.commons.jelly.impl | org.apache.commons.jelly.expression org.apache.commons.jelly org.apache.commons.jelly.util org.apache.commons.jelly
org.apache.commons.jelly.parser | org.apache.commons.jelly org.apache.commons.jelly.util org.apache.commons.jelly
org.apache.commons.jelly.servlet | org.apache.commons.jelly org.apache.commons.jelly.util org.apache.commons.jelly
org.apache.commons.jelly.tags.core | org.apache.commons.jelly org.apache.commons.jelly.util org.apache.commons.jelly
org.apache.commons.jelly.test | org.apache.commons.jelly org.apache.commons.jelly.util org.apache.commons.jelly
org.apache.commons.jelly.util | org.apache.commons.jelly org.apache.commons.jelly.util
org.apache.commons.jelly.xpath | org.apache.commons.jelly.util org.apache.commons.jelly org.apache.commons.jelly.util
### Explanations [ 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.