com.sdmetrics.metrics

Class SetOperation

java.lang.Object

com.sdmetrics.metrics.AbstractProcedure

com.sdmetrics.metrics.SetOperation

public abstract class SetOperation
extends AbstractProcedure

Base class for set operations in expressions. Set operations return sets or multisets of values or model elements.

Since:

2.3

Constructor Summary

Constructors

Constructor and Description
SetOperation()

Method Summary

Modifier and Type	Method and Description
abstract java.util.Collection<?>	calculateValue(ModelElement element, ExpressionNode node, Variables vars) Calculates the value for the set operations.

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

SetOperation

public SetOperation()

Method Detail

calculateValue

public abstract java.util.Collection<?> calculateValue(ModelElement element,
                                                       ExpressionNode node,
                                                       Variables vars)
                                                throws SDMetricsException

Calculates the value for the set operations.

Parameters:

element - Model element for which to calculate the operation

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

vars - The variables for the calculation.

Returns:

Result of the operation.

Throws:

SDMetricsException - Problems while calculating the operation value.