JavaNCSS Metric Results

[ package ] [ object ] [ method ] [ explanation ]

The following document contains the results of a JavaNCSS metric analysis.
JavaNCSS web site.

Packages

[ package ] [ object ] [ method ] [ explanation ]

Packages sorted by NCSS.

PackageClassesMethodsNCSSJavadocsJavadoc linesSingle lines commentMulti lines comment
org.apache.myfaces.tobago.facelets15275150015311
org.apache.myfaces.tobago.facelets.extension1448287001280
Classes totalMethods totalNCSS totalJavadocsJavadoc linesSingle lines commentMulti lines comment
29758020016591

Objects

[ package ] [ object ] [ method ] [ explanation ]

TOP 30 classes containing the most NCSS.

ObjectNCSSMethodsClassesJavadocs
org.apache.myfaces.tobago.facelets.AttributeHandler74300
org.apache.myfaces.tobago.facelets.extension.TobagoLabelExtensionHandler72900
org.apache.myfaces.tobago.facelets.TabChangeListenerHandler35200
org.apache.myfaces.tobago.facelets.PageRule34130
org.apache.myfaces.tobago.facelets.ScriptHandler32200
org.apache.myfaces.tobago.facelets.extension.TobagoMenuExtensionHandler29500
org.apache.myfaces.tobago.facelets.ConverterHandler26200
org.apache.myfaces.tobago.facelets.extension.DateExtensionHandler21500
org.apache.myfaces.tobago.facelets.TobagoComponentHandler20300
org.apache.myfaces.tobago.facelets.StyleHandler20200
org.apache.myfaces.tobago.facelets.extension.TobagoExtensionTagLibrary15100
org.apache.myfaces.tobago.facelets.TabChangeSourceRule14110
org.apache.myfaces.tobago.facelets.SheetStateChangeSourceRule14110
org.apache.myfaces.tobago.facelets.SortActionSourceRule14110
org.apache.myfaces.tobago.facelets.SupportsMarkupRule13110
org.apache.myfaces.tobago.facelets.PopupReferenceHandler12200
org.apache.myfaces.tobago.facelets.LoadBundleHandler12200
org.apache.myfaces.tobago.facelets.AbstractTobagoTagLibrary10100
org.apache.myfaces.tobago.facelets.FixCharacterEncodingFilter7300
org.apache.myfaces.tobago.facelets.extension.InExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.SelectBooleanCheckboxExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.SelectOneListboxExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.SelectManyListboxExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.TimeExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.SelectOneChoiceExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.TextAreaExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.FileExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.MenuCheckboxExtensionHandler5200
org.apache.myfaces.tobago.facelets.extension.MenuRadioExtensionHandler5200

TOP 30 classes containing the most methods.

ObjectNCSSMethodsClassesJavadocs
org.apache.myfaces.tobago.facelets.extension.TobagoLabelExtensionHandler72900
org.apache.myfaces.tobago.facelets.extension.DateExtensionHandler21500
org.apache.myfaces.tobago.facelets.extension.TobagoMenuExtensionHandler29500
org.apache.myfaces.tobago.facelets.FixCharacterEncodingFilter7300
org.apache.myfaces.tobago.facelets.AttributeHandler74300
org.apache.myfaces.tobago.facelets.TobagoComponentHandler20300
org.apache.myfaces.tobago.facelets.extension.InExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.SelectBooleanCheckboxExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.SelectOneListboxExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.SelectManyListboxExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.TimeExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.SelectOneChoiceExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.TextAreaExtensionHandler7300
org.apache.myfaces.tobago.facelets.extension.FileExtensionHandler7300
org.apache.myfaces.tobago.facelets.PopupReferenceHandler12200
org.apache.myfaces.tobago.facelets.TabChangeListenerHandler35200
org.apache.myfaces.tobago.facelets.ScriptHandler32200
org.apache.myfaces.tobago.facelets.ConverterHandler26200
org.apache.myfaces.tobago.facelets.LoadBundleHandler12200
org.apache.myfaces.tobago.facelets.extension.MenuCheckboxExtensionHandler5200
org.apache.myfaces.tobago.facelets.extension.MenuRadioExtensionHandler5200
org.apache.myfaces.tobago.facelets.StyleHandler20200
org.apache.myfaces.tobago.facelets.AbstractTobagoTagLibrary10100
org.apache.myfaces.tobago.facelets.PageRule34130
org.apache.myfaces.tobago.facelets.TabChangeSourceRule14110
org.apache.myfaces.tobago.facelets.SupportsMarkupRule13110
org.apache.myfaces.tobago.facelets.SheetStateChangeSourceRule14110
org.apache.myfaces.tobago.facelets.extension.TobagoExtensionTagLibrary15100
org.apache.myfaces.tobago.facelets.SortActionSourceRule14110

Averages.

NCSS averageProgram NCSSClasses averageMethods averageJavadocs average
18.62802.000.242.590.00

Methods

[ package ] [ object ] [ method ] [ explanation ]

TOP 30 Methods containing the most NCSS.

MethodsNCSSCCNJavadocs
org.apache.myfaces.tobago.facelets.AttributeHandler.apply(FaceletContext,UIComponent)52260
org.apache.myfaces.tobago.facelets.TabChangeListenerHandler.apply(FaceletContext,UIComponent)21100
org.apache.myfaces.tobago.facelets.ScriptHandler.apply(FaceletContext,UIComponent)2190
org.apache.myfaces.tobago.facelets.ConverterHandler.apply(FaceletContext,UIComponent)19100
org.apache.myfaces.tobago.facelets.StyleHandler.apply(FaceletContext,UIComponent)1560
org.apache.myfaces.tobago.facelets.AttributeHandler.getMethodExpression(FaceletContext,Class,Class[])1490
org.apache.myfaces.tobago.facelets.extension.TobagoLabelExtensionHandler.createMetaRuleset(Class)1460
org.apache.myfaces.tobago.facelets.TobagoComponentHandler.createMetaRuleset(Class)1360
org.apache.myfaces.tobago.facelets.extension.TobagoExtensionTagLibrary.TobagoExtensionTagLibrary()1310
org.apache.myfaces.tobago.facelets.extension.TobagoLabelExtensionHandler.applyNextHandler(FaceletContext,UIComponent)1340
org.apache.myfaces.tobago.facelets.extension.DateExtensionHandler.onComponentPopulated(FaceletContext,UIComponent,UIComponent)1230
org.apache.myfaces.tobago.facelets.extension.TobagoLabelExtensionHandler.onComponentCreated(FaceletContext,UIComponent,UIComponent)1110
org.apache.myfaces.tobago.facelets.extension.TobagoLabelExtensionHandler.addLabel(FaceletContext,UIComponent,UIViewRoot)1130
org.apache.myfaces.tobago.facelets.extension.TobagoMenuExtensionHandler.createMetaRuleset(Class)1160
org.apache.myfaces.tobago.facelets.TabChangeListenerHandler.TabChangeListenerHandler(TagConfig)1060
org.apache.myfaces.tobago.facelets.extension.TobagoLabelExtensionHandler.addGridLayout(FaceletContext,UIComponent,UIViewRoot)1020
org.apache.myfaces.tobago.facelets.AbstractTobagoTagLibrary.AbstractTobagoTagLibrary(String)910
org.apache.myfaces.tobago.facelets.PageRule.applyRule(String,TagAttribute,MetadataTarget)870
org.apache.myfaces.tobago.facelets.PopupReferenceHandler.apply(FaceletContext,UIComponent)740
org.apache.myfaces.tobago.facelets.extension.TobagoMenuExtensionHandler.applyNextHandler(FaceletContext,UIComponent)720
org.apache.myfaces.tobago.facelets.extension.TobagoMenuExtensionHandler.onComponentCreated(FaceletContext,UIComponent,UIComponent)710
org.apache.myfaces.tobago.facelets.ScriptHandler.ScriptHandler(TagConfig)610
org.apache.myfaces.tobago.facelets.TabChangeSourceRule.applyRule(String,TagAttribute,MetadataTarget)540
org.apache.myfaces.tobago.facelets.LoadBundleHandler.apply(FaceletContext,UIComponent)510
org.apache.myfaces.tobago.facelets.SupportsMarkupRule.applyRule(String,TagAttribute,MetadataTarget)540
org.apache.myfaces.tobago.facelets.SheetStateChangeSourceRule.applyRule(String,TagAttribute,MetadataTarget)540
org.apache.myfaces.tobago.facelets.extension.TobagoLabelExtensionHandler.TobagoLabelExtensionHandler(ComponentConfig)510
org.apache.myfaces.tobago.facelets.SortActionSourceRule.applyRule(String,TagAttribute,MetadataTarget)540
org.apache.myfaces.tobago.facelets.FixCharacterEncodingFilter.doFilter(ServletRequest,ServletResponse,FilterChain)420
org.apache.myfaces.tobago.facelets.AttributeHandler.AttributeHandler(TagConfig)410

Averages.

Program NCSSNCSS averageCCN averageJavadocs average
802.005.252.310.00

Explanations

[ package ] [ object ] [ method ] [ explanation ]

Non Commenting Source Statements (NCSS)

Statements for JavaNCSS are not statements as specified in the Java Language Specification but include all kinds of declarations too. Roughly spoken, NCSS is approximately equivalent to counting ';' and '{' characters in Java source files.

Not counted are empty statements, empty blocks or semicolons after closing brackets. Of course, comments don't get counted too. Closing brackets also never get counted, the same applies to blocks in general.

Examples
Package declarationpackage java.lang;
Import declarationimport java.awt.*;
Class declaration
  • public class Foo {
  • public class Foo extends Bla {
Interface declarationpublic interface Able ; {
Field declaration
  • int a;
  • int a, b, c = 5, d = 6;
Method declaration
  • public void cry();
  • public void gib() throws DeadException {
Constructor declarationpublic Foo() {
Constructor invocation
  • this();
  • super();
Statement declaration
  • i = 0;
  • if (ok)
  • if (exit) {
  • if (3 == 4);
  • if (4 == 4) { ;
  • } else {
Label declarationfine :
In some cases consecutive semicolons are illegal according to the JLS but JavaNCSS still tolerates them (thought JavaNCSS is still more strict as 'javac'). Nevertheless they are never counted as two statements.Cyclomatic Complexity Number (CCN)CCN is also know as McCabe Metric. There exists a much hyped theory behind it based on graph theory, but it all comes down to simply counting 'if', 'for', 'while' statements etc. in a method. Whenever the control flow of a method splits, the "CCN counter" gets incremented by one.Each method has a minimum value of 1 per default. For each of the following Java keywords/statements this value gets incremented by one:
  • if
  • for
  • while
  • case
  • catch
Also if the control flow of a method returns abortively the CCNvalue will be incremented by one:
  • if
  • for
An ordinary return at the end of method will not be counted.Note that 'else', 'default', and 'finally' don't increment the CCN value any further. On the other hand, a simple method with a 'switch' statement and a huge block of 'case' statements can have a surprisingly high CCN value (still it has the same value when converting a 'switch' block to an equivalent sequence of 'if' statements).