com.sdmetrics.metrics

Class BooleanOperation

java.lang.Object

com.sdmetrics.metrics.AbstractProcedure

com.sdmetrics.metrics.BooleanOperation

public abstract class BooleanOperation
extends AbstractProcedure

Base class for Boolean operations in expressions. Boolean operations return values true or false.

Since:

2.3

Constructor Summary

Constructors

Constructor and Description
BooleanOperation()

Method Summary

Modifier and Type	Method and Description
abstract boolean	calculateValue(ModelElement element, ExpressionNode node, Variables vars) Calculates the value for the Boolean operation.

Methods inherited from class com.sdmetrics.metrics.AbstractProcedure

evalBooleanExpression, evalElementSetExpression, evalExpression, evalSetExpression, getFilterAttributeProcessor, getMetaModel, getMetricsEngine, getModel, getRelationOrSet, isCompatible

Methods inherited from class java.lang.Object

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

Constructor Detail

BooleanOperation

public BooleanOperation()

Method Detail

calculateValue

public abstract boolean calculateValue(ModelElement element,
                                       ExpressionNode node,
                                       Variables vars)
                                throws SDMetricsException

Calculates the value for the Boolean operation.

Parameters:

element - Model element for which to calculate the value

node - The expression node with the operands for the Boolean operation.

vars - The variables for the calculation.

Returns:

Result of the operation.

Throws:

SDMetricsException - Problems while calculating the operation value.