##### jaxen

- Overview
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##### Project Documentation

- About jaxen
- Project Info
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- Development Process

## 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.jaxen | 24 | 8 | 16 | 14 | 10 | 0.33 | 42% | 25%
org.jaxen.dom | 13 | 1 | 12 | 0 | 8 | 0.08 | 100% | 8%
org.jaxen.dom4j | 3 | 0 | 3 | 0 | 7 | 0 | 100% | 0%
org.jaxen.expr | 75 | 39 | 36 | 3 | 8 | 0.52 | 73% | 25%
org.jaxen.expr.iter | 14 | 1 | 13 | 1 | 4 | 0.07 | 80% | 13%
org.jaxen.function | 27 | 0 | 27 | 4 | 4 | 0 | 50% | 50%
org.jaxen.function.ext | 7 | 1 | 6 | 1 | 5 | 0.14 | 83% | 2%
org.jaxen.function.xslt | 1 | 0 | 1 | 1 | 4 | 0 | 80% | 20%
org.jaxen.javabean | 4 | 0 | 4 | 0 | 6 | 0 | 100% | 0%
org.jaxen.jdom | 4 | 0 | 4 | 0 | 7 | 0 | 100% | 0%
org.jaxen.pattern | 13 | 2 | 11 | 0 | 8 | 0.15 | 100% | 15%
org.jaxen.saxpath | 7 | 4 | 3 | 11 | 3 | 0.57 | 21% | 21%
org.jaxen.saxpath.base | 5 | 0 | 5 | 0 | 5 | 0 | 100% | 0%
org.jaxen.saxpath.helpers | 2 | 0 | 2 | 3 | 2 | 0 | 40% | 60%
org.jaxen.util | 14 | 1 | 13 | 7 | 5 | 0.07 | 42% | 51%
org.jaxen.xom | 6 | 1 | 5 | 0 | 6 | 0.17 | 100% | 17%
org.w3c.dom | 1 | 1 | 0 | 1 | 1 | 1 | 50% | 50%

## Packages

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

### org.jaxen

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
14 | 10 | 33% | 42% | 25%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
DefaultNavigator Function FunctionContext NamedAccessNavigator NamespaceContext Navigator VariableContext XPath | BaseXPath Context ContextSupport FunctionCallException JaxenConstants JaxenException JaxenHandler JaxenRuntimeException QualifiedName SimpleFunctionContext SimpleNamespaceContext SimpleVariableContext UnresolvableException UnsupportedAxisException XPathFunctionContext XPathSyntaxException | org.jaxen.dom org.jaxen.dom4j org.jaxen.expr org.jaxen.expr.iter org.jaxen.function org.jaxen.function.ext org.jaxen.function.xslt org.jaxen.javabean org.jaxen.jdom org.jaxen.pattern org.jaxen.saxpath org.jaxen.saxpath.base org.jaxen.util org.jaxen.xom | java.io java.lang java.util org.jaxen.expr org.jaxen.function org.jaxen.function.ext org.jaxen.function.xslt org.jaxen.saxpath org.jaxen.saxpath.helpers org.jaxen.util

### org.jaxen.dom

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
0 | 8 | 8% | 100% | 8%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
DocumentNavigator$NodeIterator | DOMXPath DocumentNavigator DocumentNavigator$1 DocumentNavigator$2 DocumentNavigator$3 DocumentNavigator$4 DocumentNavigator$5 DocumentNavigator$6 DocumentNavigator$AttributeIterator NamespaceNode NamespaceNode$1 NamespaceNode$EmptyNodeList | None | java.io java.lang java.util javax.xml.parsers org.jaxen org.jaxen.saxpath org.w3c.dom org.xml.sax

### org.jaxen.dom4j

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
0 | 7 | 0% | 100% | 0%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
None | DocumentNavigator DocumentNavigator$Singleton Dom4jXPath | None | java.lang java.util org.dom4j org.dom4j.io org.jaxen org.jaxen.saxpath org.jaxen.util

### org.jaxen.expr

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
3 | 8 | 52% | 73% | 25%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
AdditiveExpr AllNodeStep BinaryExpr CommentNodeStep DefaultAdditiveExpr DefaultArithExpr DefaultBinaryExpr DefaultEqualityExpr DefaultExpr DefaultLocationPath DefaultLogicalExpr DefaultMultiplicativeExpr DefaultRelationalExpr DefaultStep DefaultTruthExpr EqualityExpr Expr FilterExpr FunctionCallExpr LiteralExpr LocationPath LogicalExpr MultiplicativeExpr NameStep NumberExpr PathExpr Predicate Predicated ProcessingInstructionNodeStep RelationalExpr Step TextNodeStep UnaryExpr UnionExpr VariableReferenceExpr Visitable Visitor XPathExpr XPathFactory | DefaultAbsoluteLocationPath DefaultAllNodeStep DefaultAndExpr DefaultCommentNodeStep DefaultDivExpr DefaultEqualsExpr DefaultFilterExpr DefaultFunctionCallExpr DefaultGreaterThanEqualExpr DefaultGreaterThanExpr DefaultLessThanEqualExpr DefaultLessThanExpr DefaultLiteralExpr DefaultMinusExpr DefaultModExpr DefaultMultiplyExpr DefaultNameStep DefaultNotEqualsExpr DefaultNumberExpr DefaultOrExpr DefaultPathExpr DefaultPlusExpr DefaultPredicate DefaultProcessingInstructionNodeStep DefaultRelativeLocationPath DefaultTextNodeStep DefaultUnaryExpr DefaultUnionExpr DefaultVariableReferenceExpr DefaultXPathExpr DefaultXPathFactory IdentitySet IdentitySet$IdentityWrapper NodeComparator PredicateSet VisitorSupport | org.jaxen org.jaxen.pattern org.jaxen.util | java.io java.lang java.util org.jaxen org.jaxen.expr.iter org.jaxen.function org.jaxen.saxpath org.jaxen.util

### org.jaxen.expr.iter

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
1 | 4 | 7% | 80% | 13%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
IterableAxis | IterableAncestorAxis IterableAncestorOrSelfAxis IterableAttributeAxis IterableChildAxis IterableDescendantAxis IterableDescendantOrSelfAxis IterableFollowingAxis IterableFollowingSiblingAxis IterableNamespaceAxis IterableParentAxis IterablePrecedingAxis IterablePrecedingSiblingAxis IterableSelfAxis | org.jaxen.expr | java.io java.lang java.util org.jaxen

### org.jaxen.function

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
4 | 4 | 0% | 50% | 50%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
None | BooleanFunction CeilingFunction ConcatFunction ContainsFunction CountFunction FalseFunction FloorFunction IdFunction LangFunction LastFunction LocalNameFunction NameFunction NamespaceUriFunction NormalizeSpaceFunction NotFunction NumberFunction PositionFunction RoundFunction StartsWithFunction StringFunction StringLengthFunction SubstringAfterFunction SubstringBeforeFunction SubstringFunction SumFunction TranslateFunction TrueFunction | org.jaxen org.jaxen.expr org.jaxen.function.ext org.jaxen.function.xslt | java.lang java.text java.util org.jaxen

### org.jaxen.function.ext

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
1 | 5 | 14% | 83% | 2%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
LocaleFunctionSupport | EndsWithFunction EvaluateFunction LowerFunction MatrixConcatFunction MatrixConcatFunction$MatrixEnum UpperFunction | org.jaxen | java.lang java.util org.jaxen org.jaxen.function org.jaxen.saxpath

### org.jaxen.function.xslt

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
1 | 4 | 0% | 80% | 20%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
None | DocumentFunction | org.jaxen | java.lang java.util org.jaxen org.jaxen.function

### org.jaxen.javabean

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
0 | 6 | 0% | 100% | 0%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
None | DocumentNavigator Element ElementIterator JavaBeanXPath | None | java.lang java.lang.reflect java.util org.jaxen org.jaxen.saxpath org.jaxen.util

### org.jaxen.jdom

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
0 | 7 | 0% | 100% | 0%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
None | DocumentNavigator DocumentNavigator$Singleton JDOMXPath XPathNamespace | None | java.lang java.util org.jaxen org.jaxen.saxpath org.jaxen.util org.jdom org.jdom.input

### org.jaxen.pattern

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
0 | 8 | 15% | 100% | 15%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
NodeTest Pattern | AnyChildNodeTest AnyNodeTest LocationPathPattern NameTest NamespaceTest NoNodeTest NodeTypeTest PatternHandler PatternParser TextNodeTest UnionPattern | None | java.io java.lang java.util org.jaxen org.jaxen.expr org.jaxen.saxpath org.jaxen.saxpath.helpers org.jaxen.util

### org.jaxen.saxpath

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
11 | 3 | 57% | 21% | 21%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
Operator SAXPathEventSource XPathHandler XPathReader | Axis SAXPathException XPathSyntaxException | org.jaxen org.jaxen.dom org.jaxen.dom4j org.jaxen.expr org.jaxen.function.ext org.jaxen.javabean org.jaxen.jdom org.jaxen.pattern org.jaxen.saxpath.base org.jaxen.saxpath.helpers org.jaxen.xom | java.io java.lang org.jaxen

### org.jaxen.saxpath.base

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
0 | 5 | 0% | 100% | 0%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
None | Token TokenTypes Verifier XPathLexer XPathReader | None | java.lang java.util org.jaxen org.jaxen.saxpath org.jaxen.saxpath.helpers

### org.jaxen.saxpath.helpers

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
3 | 2 | 0% | 40% | 60%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
None | DefaultXPathHandler XPathReaderFactory | org.jaxen org.jaxen.pattern org.jaxen.saxpath.base | java.lang org.jaxen.saxpath

### org.jaxen.util

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
7 | 5 | 7% | 42% | 51%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
StackedIterator | AncestorAxisIterator AncestorOrSelfAxisIterator DescendantAxisIterator DescendantOrSelfAxisIterator FollowingAxisIterator FollowingSiblingAxisIterator LinkedIterator PrecedingAxisIterator PrecedingSiblingAxisIterator SelfAxisIterator SingleObjectIterator SingletonList XPath2XMLVisitor | org.jaxen org.jaxen.dom4j org.jaxen.expr org.jaxen.javabean org.jaxen.jdom org.jaxen.pattern org.jaxen.xom | java.io java.lang java.util org.jaxen org.jaxen.expr

### org.jaxen.xom

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
0 | 6 | 17% | 100% | 17%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
DocumentNavigator$IndexIterator | DocumentNavigator DocumentNavigator$1 DocumentNavigator$2 DocumentNavigator$XPathNamespace XOMXPath | None | java.lang java.util nu.xom org.jaxen org.jaxen.saxpath org.jaxen.util

### org.w3c.dom

Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance
--- | --- | --- | --- | ---
1 | 1 | 100% | 50% | 50%

Abstract Classes | Concrete Classes | Used by Packages | Uses Packages
--- | --- | --- | ---
UserDataHandler | None | org.jaxen.dom | java.lang

## Cycles

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

Package | Cyclic Dependencies
--- | ---
org.jaxen | org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen
org.jaxen.dom | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen
org.jaxen.dom4j | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen
org.jaxen.expr | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen
org.jaxen.expr.iter | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen
org.jaxen.function | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen
org.jaxen.function.ext | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen
org.jaxen.function.xslt | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen
org.jaxen.javabean | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen
org.jaxen.jdom | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen
org.jaxen.pattern | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen
org.jaxen.saxpath | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath
org.jaxen.saxpath.base | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen
org.jaxen.saxpath.helpers | org.jaxen.saxpath org.jaxen org.jaxen.saxpath.helpers
org.jaxen.util | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen
org.jaxen.xom | org.jaxen org.jaxen.saxpath.helpers org.jaxen.saxpath org.jaxen

## 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.