net.sourceforge.pmd.lang.java.metrics.impl

Class CycloMetric

java.lang.Object

net.sourceforge.pmd.lang.metrics.AbstractMetric<N>

net.sourceforge.pmd.lang.java.metrics.AbstractJavaMetric<ASTMethodOrConstructorDeclaration>

net.sourceforge.pmd.lang.java.metrics.impl.AbstractJavaOperationMetric

net.sourceforge.pmd.lang.java.metrics.impl.CycloMetric

All Implemented Interfaces:

JavaOperationMetric, Metric<ASTMethodOrConstructorDeclaration>

public final class CycloMetric
extends AbstractJavaOperationMetric

Cyclomatic Complexity. See the documentation site.

Since:

June 2017

Author:

Clément Fournier

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CycloMetric.CycloOption Options for CYCLO.

Constructor Summary

Constructors

Constructor and Description
CycloMetric()

Method Summary

Modifier and Type	Method and Description
static int	booleanExpressionComplexity(ASTExpression expr) Evaluates the number of paths through a boolean expression.
double	computeFor(ASTMethodOrConstructorDeclaration node, MetricOptions options)

Methods inherited from class net.sourceforge.pmd.lang.java.metrics.impl.AbstractJavaOperationMetric

supports

Methods inherited from class net.sourceforge.pmd.lang.metrics.AbstractMetric

equals, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

CycloMetric

public CycloMetric()

Method Detail

computeFor

public double computeFor(ASTMethodOrConstructorDeclaration node,
                         MetricOptions options)

booleanExpressionComplexity

public static int booleanExpressionComplexity(ASTExpression expr)

Evaluates the number of paths through a boolean expression. This is the total number of && and || operators appearing in the expression. This is used in the calculation of cyclomatic and n-path complexity.

Parameters:

expr - Expression to analyse

Returns:

The number of paths through the expression