gr.spinellis.ckjm
Class ClassVisitor

java.lang.Object
  org.apache.bcel.classfile.EmptyVisitor
      gr.spinellis.ckjm.ClassVisitor

All Implemented Interfaces:

org.apache.bcel.classfile.Visitor

public class ClassVisitor
extends org.apache.bcel.classfile.EmptyVisitor

Visit a class updating its Chidamber-Kemerer metrics.

Version:

$Revision: 1.21 $

Author:

Diomidis Spinellis

See Also:

ClassMetrics

Field Summary

(package private) java.util.ArrayList<java.util.TreeSet<java.lang.String>>

mi Use of fields in methods.

Constructor Summary

ClassVisitor(org.apache.bcel.classfile.JavaClass jc, ClassMetricsContainer classMap)

Method Summary

(package private) static java.lang.String	className(org.apache.bcel.generic.Type t) Return a class name associated with a type.
void	end() Do final accounting at the end of the visit.
ClassMetrics	getMetrics() Return the class's metrics container.
void	registerCoupling(java.lang.String className) Add a given class to the classes we are coupled to
void	registerCoupling(org.apache.bcel.generic.Type t)
(package private) void	registerFieldAccess(java.lang.String className, java.lang.String fieldName)
(package private) void	registerMethodInvocation(java.lang.String className, java.lang.String methodName, org.apache.bcel.generic.Type[] args)
void	start()
void	visitField(org.apache.bcel.classfile.Field field) Called when a field access is encountered.
void	visitJavaClass(org.apache.bcel.classfile.JavaClass jc) Calculate the class's metrics based on its elements.
void	visitMethod(org.apache.bcel.classfile.Method method) Called when a method invocation is encountered.

Methods inherited from class org.apache.bcel.classfile.EmptyVisitor

visitCode, visitCodeException, visitConstantClass, visitConstantDouble, visitConstantFieldref, visitConstantFloat, visitConstantInteger, visitConstantInterfaceMethodref, visitConstantLong, visitConstantMethodref, visitConstantNameAndType, visitConstantPool, visitConstantString, visitConstantUtf8, visitConstantValue, visitDeprecated, visitExceptionTable, visitInnerClass, visitInnerClasses, visitLineNumber, visitLineNumberTable, visitLocalVariable, visitLocalVariableTable, visitSignature, visitSourceFile, visitStackMap, visitStackMapEntry, visitSynthetic, visitUnknown

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

mi

java.util.ArrayList<java.util.TreeSet<java.lang.String>> mi

Use of fields in methods. Its contents are used for calculating the LCOM. We use a Tree rather than a Hash to calculate the intersection in O(n) instead of O(n*n).

Constructor Detail

ClassVisitor

public ClassVisitor(org.apache.bcel.classfile.JavaClass jc,
                    ClassMetricsContainer classMap)

Method Detail

getMetrics

public ClassMetrics getMetrics()

Return the class's metrics container.

start

public void start()

visitJavaClass

public void visitJavaClass(org.apache.bcel.classfile.JavaClass jc)

Calculate the class's metrics based on its elements.

Specified by:

visitJavaClass in interface org.apache.bcel.classfile.Visitor

Overrides:

visitJavaClass in class org.apache.bcel.classfile.EmptyVisitor

registerCoupling

public void registerCoupling(java.lang.String className)

Add a given class to the classes we are coupled to

registerCoupling

public void registerCoupling(org.apache.bcel.generic.Type t)

registerFieldAccess

void registerFieldAccess(java.lang.String className,
                         java.lang.String fieldName)

registerMethodInvocation

void registerMethodInvocation(java.lang.String className,
                              java.lang.String methodName,
                              org.apache.bcel.generic.Type[] args)

visitField

public void visitField(org.apache.bcel.classfile.Field field)

Called when a field access is encountered.

Specified by:

visitField in interface org.apache.bcel.classfile.Visitor

Overrides:

visitField in class org.apache.bcel.classfile.EmptyVisitor

visitMethod

public void visitMethod(org.apache.bcel.classfile.Method method)

Called when a method invocation is encountered.

Specified by:

visitMethod in interface org.apache.bcel.classfile.Visitor

Overrides:

visitMethod in class org.apache.bcel.classfile.EmptyVisitor

className

static java.lang.String className(org.apache.bcel.generic.Type t)

Return a class name associated with a type.

end

public void end()

Do final accounting at the end of the visit.