Package org.somox.metrics.ratio
Class DMS
java.lang.Object
org.somox.metrics.abstractmetrics.AbstractMetric
org.somox.metrics.abstractmetrics.AbstractComposedMetric
org.somox.metrics.ratio.DMS
- All Implemented Interfaces:
IMetric
DMS metric, calculated by using Abstractness and Instability
The perpendicular normalized distance of an assembly from the idealized line A + I = 1 (called
main sequence). This metric is an indicator of the assembly's balance between abstractness and
stability. An assembly squarely on the main sequence is optimally balanced with respect to its
abstractness and stability. Ideal assemblies are either completely abstract and stable (I=0, A=1)
or completely concrete and instable (I=1, A=0). The range for this metric is 0 to 1, with D=0
indicating an assembly that is coincident with the main sequence and D=1 indicating an assembly
that is as far from the main sequence as possible. see
http://www.ndepend.com/Metrics.aspx#DitFromMainSeq
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Field Summary
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionprotected IMetric[]
getChildMetrics
(Map<MetricID, IMetric> allMetrics) In a subclass override this method and return the subset of metrics in allMetrics which are needed in this composed metric.protected ICompositionFunction
getCompositionFunction
(SoMoXConfiguration somoxConfiguration) Return the function used to compose the set of child metricsgetMID()
Returns the Metric ID of the Metricboolean
Methods inherited from class org.somox.metrics.abstractmetrics.AbstractComposedMetric
getAllChildMetrics, initialize, internalComputeDirected, isCommutative, metricIDToIMetric
Methods inherited from class org.somox.metrics.abstractmetrics.AbstractMetric
calculateUnion, calculateUnion, checkMetricPostCondition, checkMetricPreCondition, computeDirected, getAccessGraphCache, getComponentToClassHelper, getLaunchConfigurationTab, getMetric, getMetricParameters
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Field Details
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METRIC_ID
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Constructor Details
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DMS
public DMS()
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Method Details
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getMID
Returns the Metric ID of the Metric- Returns:
- the metric id of the instance
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getChildMetrics
Description copied from class:AbstractComposedMetric
In a subclass override this method and return the subset of metrics in allMetrics which are needed in this composed metric.- Specified by:
getChildMetrics
in classAbstractComposedMetric
- Parameters:
allMetrics
- The set of all metrics registered in the system via the metric extension point- Returns:
- The subset of all metrics needed in this composed metric
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getCompositionFunction
Description copied from class:AbstractComposedMetric
Return the function used to compose the set of child metrics- Specified by:
getCompositionFunction
in classAbstractComposedMetric
- Parameters:
somoxConfiguration
- The somox configuration object used to initialize the function- Returns:
- The function used to compute the composed metric
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isNormalised
public boolean isNormalised()- Returns:
- whether the metric is normalized. If it is normalized, values of this metric must be between 0.0 and 1.0.
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