com.espertech.esper.epl.agg.access

Interface AggregationStateLinear

All Known Implementing Classes:

AggregationStateLinearImpl, AggregationStateLinearJoinImpl, AggregationStateLinearJoinWFilter, AggregationStateLinearWFilter

public interface AggregationStateLinear

Method Summary

Modifier and Type	Method and Description
Collection<EventBean>	collectionReadOnly() Returns all events for the group.
EventBean	getFirstNthValue(int index) Counting from the first element to the last, returns the oldest (first) value entered for index zero and the n-th oldest value for index N.
EventBean	getFirstValue() Returns the first (oldest) value entered.
EventBean	getLastNthValue(int index) Counting from the last element to the first, returns the newest (last) value entered for index zero and the n-th newest value for index N.
EventBean	getLastValue() Returns the newest (last) value entered.
Iterator<EventBean>	iterator() Returns all events for the group.
int	size() Returns the number of events in the group.

Method Detail

getFirstValue

EventBean getFirstValue()

Returns the first (oldest) value entered.

Returns:

first value

getLastValue

EventBean getLastValue()

Returns the newest (last) value entered.

Returns:

last value

getFirstNthValue

EventBean getFirstNthValue(int index)

Counting from the first element to the last, returns the oldest (first) value entered for index zero and the n-th oldest value for index N.

Parameters:

index - index

Returns:

last value

getLastNthValue

EventBean getLastNthValue(int index)

Counting from the last element to the first, returns the newest (last) value entered for index zero and the n-th newest value for index N.

Parameters:

index - index

Returns:

last value

iterator

Iterator<EventBean> iterator()

Returns all events for the group.

Returns:

group event iterator

collectionReadOnly

Collection<EventBean> collectionReadOnly()

Returns all events for the group.

Returns:

group event iterator

size

int size()

Returns the number of events in the group.

Returns:

size