com.espertech.esper.common.internal.view.derived

Class RegressionLinestView

java.lang.Object

com.espertech.esper.common.internal.view.core.ViewSupport

com.espertech.esper.common.internal.view.derived.BaseBivariateStatisticsView

com.espertech.esper.common.internal.view.derived.RegressionLinestView

All Implemented Interfaces:

DerivedValueView, View, Viewable, Iterable<EventBean>

public class RegressionLinestView
extends BaseBivariateStatisticsView

A view that calculates regression on two fields. The view uses internally a BaseStatisticsBean instance for the calculations, it also returns this bean as the result. This class accepts most of its behaviour from its parent, BaseBivariateStatisticsView. It adds the usage of the regression bean and the appropriate schema.

Field Summary

Fields inherited from class com.espertech.esper.common.internal.view.derived.BaseBivariateStatisticsView

additionalProps, agentInstanceContext, eventType, lastValuesEventNew, statisticsBean, viewFactory

Fields inherited from class com.espertech.esper.common.internal.view.core.ViewSupport

child, parent

Constructor Summary

Constructors

Constructor and Description
RegressionLinestView(ViewFactory viewFactory, AgentInstanceContext agentInstanceContext, ExprEvaluator xEval, ExprEvaluator yEval, EventType eventType, StatViewAdditionalPropsEval additionalProps)

Method Summary

Modifier and Type	Method and Description
protected static EventType	createEventType(StatViewAdditionalPropsForge additionalProps, ViewForgeEnv env, int streamNum)
static EventBean	doPopulateMap(BaseStatisticsBean baseStatisticsBean, EventBeanTypedEventFactory eventAdapterService, EventType eventType, StatViewAdditionalPropsEval additionalProps, Object[] decoration)
EventType	getEventType() Provides metadata information about the type of object the event collection contains.
EventBean	populateMap(BaseStatisticsBean baseStatisticsBean, EventBeanTypedEventFactory eventAdapterService, EventType eventType, StatViewAdditionalPropsEval additionalProps, Object[] decoration) Populate bean.

Methods inherited from class com.espertech.esper.common.internal.view.derived.BaseBivariateStatisticsView

getAdditionalProps, getExpressionXEval, getExpressionYEval, getLastValuesEventNew, getStatisticsBean, getViewFactory, iterator, setLastValuesEventNew, update

Methods inherited from class com.espertech.esper.common.internal.view.core.ViewSupport

getChild, getParent, setChild, setParent

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.espertech.esper.common.internal.view.core.View

getParent, setParent

Methods inherited from interface com.espertech.esper.common.internal.view.core.Viewable

getChild, setChild

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

RegressionLinestView

public RegressionLinestView(ViewFactory viewFactory,
                            AgentInstanceContext agentInstanceContext,
                            ExprEvaluator xEval,
                            ExprEvaluator yEval,
                            EventType eventType,
                            StatViewAdditionalPropsEval additionalProps)

Method Detail

getEventType

public EventType getEventType()

Description copied from interface: Viewable

Provides metadata information about the type of object the event collection contains.

Returns:

metadata for the objects in the collection

populateMap

public EventBean populateMap(BaseStatisticsBean baseStatisticsBean,
                             EventBeanTypedEventFactory eventAdapterService,
                             EventType eventType,
                             StatViewAdditionalPropsEval additionalProps,
                             Object[] decoration)

Description copied from class: BaseBivariateStatisticsView

Populate bean.

Specified by:

populateMap in class BaseBivariateStatisticsView

Parameters:

baseStatisticsBean - results

eventAdapterService - event adapters

eventType - type

additionalProps - additional props

decoration - decoration values

Returns:

bean

doPopulateMap

public static EventBean doPopulateMap(BaseStatisticsBean baseStatisticsBean,
                                      EventBeanTypedEventFactory eventAdapterService,
                                      EventType eventType,
                                      StatViewAdditionalPropsEval additionalProps,
                                      Object[] decoration)

createEventType

protected static EventType createEventType(StatViewAdditionalPropsForge additionalProps,
                                           ViewForgeEnv env,
                                           int streamNum)