Uses of Interface
com.espertech.esper.view.EventCollection

Packages that use EventCollection
com.espertech.esper.core Implementation of client package interfaces, glue code 
com.espertech.esper.epl.core Contains EPL statement specification classes define the constructs that make up an EPL statement, such as the list of items in the select clause, the insert-into stream name and property names etc. 
com.espertech.esper.epl.db Database SQL polling views and caches 
com.espertech.esper.epl.named Named window classes are in this package 
com.espertech.esper.epl.subquery Subquery helper classes are found here. 
com.espertech.esper.epl.variable Variable service and variable collections 
com.espertech.esper.epl.view Internal processing views for output rate limiting, filtering and internal event routing 
com.espertech.esper.view View infrastructure concerned with view creation and destroy, cloning and hooking views trees into filtering. 
com.espertech.esper.view.ext Extension views that providing services such as sorting, which don't fit much into other categories. 
com.espertech.esper.view.internal Internal management views for buffering view results and providing these to joins. 
com.espertech.esper.view.stat Views computing statistical values. 
com.espertech.esper.view.std Base service views that perform typical SQL-like functions such as unique, grouping, size, last etc. 
com.espertech.esper.view.window Window views are in this package 
 

Uses of EventCollection in com.espertech.esper.core
 

Subinterfaces of EventCollection in com.espertech.esper.core
 interface UpdateDispatchView
          Update dispatch view to indicate statement results to listeners.
 

Classes in com.espertech.esper.core that implement EventCollection
 class UpdateDispatchViewBase
          Convenience view for dispatching view updates received from a parent view to update listeners via the dispatch service.
 class UpdateDispatchViewBlockingSpin
          Convenience view for dispatching view updates received from a parent view to update listeners via the dispatch service.
 class UpdateDispatchViewBlockingWait
          Convenience view for dispatching view updates received from a parent view to update listeners via the dispatch service.
 class UpdateDispatchViewNonBlocking
          Convenience view for dispatching view updates received from a parent view to update listeners via the dispatch service.
 

Uses of EventCollection in com.espertech.esper.epl.core
 

Classes in com.espertech.esper.epl.core that implement EventCollection
 class MethodPollingViewable
          Polling-data provider that calls a static method on a class and passed parameters, and wraps the results as POJO events.
 

Uses of EventCollection in com.espertech.esper.epl.db
 

Classes in com.espertech.esper.epl.db that implement EventCollection
 class DatabasePollingViewable
          Implements a poller viewable that uses a polling strategy, a cache and some input parameters extracted from event streams to perform the polling.
 

Uses of EventCollection in com.espertech.esper.epl.named
 

Classes in com.espertech.esper.epl.named that implement EventCollection
 class NamedWindowConsumerView
          Represents a consumer of a named window that selects from a named window via a from-clause.
 class NamedWindowOnDeleteView
          View for the on-delete statement that handles removing events from a named window.
 class NamedWindowOnExprBaseView
          View for the on-delete statement that handles removing events from a named window.
 class NamedWindowOnSelectView
          View for the on-select statement that handles selecting events from a named window.
 class NamedWindowRootView
          The root window in a named window plays multiple roles: It holds the indexes for deleting rows, if any on-delete statement requires such indexes.
 class NamedWindowTailView
          This view is hooked into a named window's view chain as the last view and handles dispatching of named window insert and remove stream results via NamedWindowService to consuming statements.
 

Uses of EventCollection in com.espertech.esper.epl.subquery
 

Classes in com.espertech.esper.epl.subquery that implement EventCollection
 class SubselectAggregatorView
          View handling the insert and remove stream generated by a subselect for application to aggregation state.
 

Uses of EventCollection in com.espertech.esper.epl.variable
 

Classes in com.espertech.esper.epl.variable that implement EventCollection
 class CreateVariableView
          View for handling create-variable syntax.
 class OnSetVariableView
          A view that handles the setting of variables upon receipt of a triggering event.
 

Uses of EventCollection in com.espertech.esper.epl.view
 

Classes in com.espertech.esper.epl.view that implement EventCollection
 class FilterExprView
          Simple filter view filtering events using a filter expression tree.
 class OutputProcessView
          Base output processing view that has the responsibility to serve up event type and statement iterator.
 class OutputProcessViewDirect
          Output process view that does not enforce any output policies and may simply hand over events to child views.
 class OutputProcessViewPolicy
          A view that prepares output events, batching incoming events and invoking the result set processor as necessary.
 class OutputProcessViewSnapshot
          A view that handles the "output snapshot" keyword in output rate stabilizing.
 

Uses of EventCollection in com.espertech.esper.view
 

Subinterfaces of EventCollection in com.espertech.esper.view
 interface DataWindowView
          Tag interface for data window views.
 interface EventStream
          A streams is a conduct for incoming events.
 interface HistoricalEventViewable
          Interface for views that poll data based on information from other streams.
 interface View
          The View interface provides a way for a stream, data provider, or another view, to notify an object of additions and deletions to its data set.
 interface Viewable
          The Viewable interface marks an object as supporting zero, one or more View instances.
 

Classes in com.espertech.esper.view that implement EventCollection
 class ViewSupport
          A helper class for View implementations that provides generic implementation for some of the methods.
 class ZeroDepthStream
          Event stream implementation that does not keep any window by itself of the events coming into the stream.
 

Uses of EventCollection in com.espertech.esper.view.ext
 

Classes in com.espertech.esper.view.ext that implement EventCollection
 class SortWindowView
          Window sorting by values in the specified field extending a specified number of elements from the lowest value up or the highest value down.
 class TimeOrderView
          Window retaining timestamped events up to a given number of seconds such that older events that arrive later are sorted into the window and released in timestamp order.
 

Uses of EventCollection in com.espertech.esper.view.internal
 

Classes in com.espertech.esper.view.internal that implement EventCollection
 class BufferView
          A view that acts as an adapter between views and update listeners.
 class PriorEventView
          View that provides access to prior events posted by the parent view for use by 'prior' expression nodes.
 

Uses of EventCollection in com.espertech.esper.view.stat
 

Classes in com.espertech.esper.view.stat that implement EventCollection
 class BaseBivariateStatisticsView
          View for computing statistics that require 2 input variable arrays containing X and Y datapoints.
 class CorrelationView
          A view that calculates correlation on two fields.
 class MultiDimStatsView
          This view compiles OLAP cubes for the specified fields.
 class RegressionLinestView
          A view that calculates regression on two fields.
 class UnivariateStatisticsView
          View for computing statistics, which the view exposes via fields representing the sum, count, standard deviation for sample and for population and variance.
 class WeightedAverageView
          View for computing a weighted average.
 

Uses of EventCollection in com.espertech.esper.view.std
 

Classes in com.espertech.esper.view.std that implement EventCollection
 class AddPropertyValueView
          This view simply adds a property to the events posted to it.
 class GroupByView
          The group view splits the data in a stream to multiple subviews, based on a key index.
 class LastElementView
          This view is a very simple view presenting the last event posted by the parent view to any subviews.
 class MergeView
          The merge view works together with a group view that splits the data in a stream to multiple subviews, based on a key index.
 class SizeView
          This view is a very simple view presenting the number of elements in a stream or view.
 class UniqueByPropertyView
          This view includes only the most recent among events having the same value for the specified field or fields.
 

Uses of EventCollection in com.espertech.esper.view.window
 

Classes in com.espertech.esper.view.window that implement EventCollection
 class ExternallyTimedWindowView
          View for a moving window extending the specified amount of time into the past, driven entirely by external timing supplied within long-type timestamp values in a field of the event beans that the view receives.
 class KeepAllView
          This view is a keep-all data window that simply keeps all events added.
 class LengthBatchView
          A data view that aggregates events in a stream and releases them in one batch when a maximum number of events has been collected.
 class LengthBatchViewRStream
          Same as the LengthBatchView, this view also supports fast-remove from the batch for remove stream events.
 class LengthWindowView
          This view is a moving window extending the specified number of elements into the past.
 class LengthWindowViewRStream
          This view is a moving window extending the specified number of elements into the past, allowing in addition to remove events efficiently for remove-stream events received by the view.
 class TimeAccumView
          A data window view that holds events in a stream and only removes events from a stream (rstream) if no more events arrive for a given time interval.
 class TimeAccumViewRStream
          A data window view that holds events in a stream and only removes events from a stream (rstream) if no more events arrive for a given time interval, also handling the remove stream by keeping set-like semantics.
 class TimeBatchView
          A data view that aggregates events in a stream and releases them in one batch at every specified time interval.
 class TimeBatchViewRStream
          Same as the TimeBatchView, this view also supports fast-remove from the batch for remove stream events.
 class TimeLengthBatchView
          A data view that aggregates events in a stream and releases them in one batch if either one of these conditions is reached, whichever comes first: One, a time interval passes.
 class TimeWindowView
          This view is a moving timeWindow extending the specified amount of milliseconds into the past.
 


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