com.espertech.esper.epl.agg.access

Class AggregationAccessorMinMaxByTable

java.lang.Object

com.espertech.esper.epl.agg.access.AggregationAccessorMinMaxByBase

com.espertech.esper.epl.agg.access.AggregationAccessorMinMaxByTable

All Implemented Interfaces:

AggregationAccessor

public class AggregationAccessorMinMaxByTable
extends AggregationAccessorMinMaxByBase

Represents the aggregation accessor that provides the result for the "maxBy" aggregation function.

Constructor Summary

Constructors

Constructor and Description
AggregationAccessorMinMaxByTable(boolean max, TableMetadata tableMetadata)

Method Summary

Modifier and Type	Method and Description
Object	getValue(AggregationState state, EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) Return the aggregation state value either as a scalar value or any other object.

Methods inherited from class com.espertech.esper.epl.agg.access.AggregationAccessorMinMaxByBase

getEnumerableEvent, getEnumerableEvents, getEnumerableScalar

Methods inherited from class java.lang.Object

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

Constructor Detail

AggregationAccessorMinMaxByTable

public AggregationAccessorMinMaxByTable(boolean max,
                                        TableMetadata tableMetadata)

Method Detail

getValue

public Object getValue(AggregationState state,
                       EventBean[] eventsPerStream,
                       boolean isNewData,
                       ExprEvaluatorContext context)

Description copied from interface: AggregationAccessor

Return the aggregation state value either as a scalar value or any other object.

For enumeration over scalar values or objects return an array or collection of scalar or object values.

Use the #getEnumerableEvents method to return a collection of events.

Use the #getEnumerableEvent to return a single events.

Parameters:

state - aggregation state, downcast as needed

eventsPerStream - events

isNewData - new-data indicator

context - eval context

Returns:

return value