org.gridgain.grid.streamer.window

Class GridStreamerBoundedSizeBatchWindow<E>

java.lang.Object

org.gridgain.grid.streamer.window.GridStreamerWindowAdapter<E>

org.gridgain.grid.streamer.window.GridStreamerBoundedSizeBatchWindow<E>

All Implemented Interfaces:

Iterable<E>, GridLifecycleAware, GridStreamerWindow<E>, GridStreamerWindowMBean

public class GridStreamerBoundedSizeBatchWindow<E>
extends GridStreamerWindowAdapter<E>

Window that is bounded by size and accumulates events to batches.

Constructor Summary

Constructors

Constructor and Description
GridStreamerBoundedSizeBatchWindow()

Method Summary

Methods

Modifier and Type	Method and Description
void	checkConfiguration() Check window configuration.
protected Collection<E>	dequeue0(int cnt) Dequeues up to cnt elements from window.
protected boolean	enqueue0(E evt) Adds event to window.
int	evictionQueueSize() Gets number of entries available for eviction.
int	getBatchSize() Gets batch size.
int	getMaximumBatches() Gets maximum number of batches can be stored in window.
protected GridStreamerWindowIterator<E>	iterator0() Returns an iterator over a set of elements of type T without check for iteration limit.
protected Collection<E>	pollEvicted0(int cnt) If window supports eviction, this method will return up to cnt evicted elements.
protected Collection<E>	pollEvictedBatch0() If window supports batch eviction, this method will poll next evicted batch from window.
protected void	reset0() Reset routine.
void	setBatchSize(int batchSize) Sets batch size.
void	setMaximumBatches(int maxBatches) Sets maximum number of batches can be stored in window.
int	size() Gets number of events currently stored in window.
protected void	stop0() Dispose window.

Methods inherited from class org.gridgain.grid.streamer.window.GridStreamerWindowAdapter

clearEvicted, dequeue, dequeue, dequeueAll, enqueue, enqueue, enqueueAll, getClassName, getEvictionQueueSize, getFilter, getName, getSize, index, index, indexes, indexProviders, iterator, name, pollEvicted, pollEvicted, pollEvictedAll, pollEvictedBatch, reset, setFilter, setIndexes, setName, snapshot, start, stop, updateIndexes

Methods inherited from class java.lang.Object

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

Constructor Detail

GridStreamerBoundedSizeBatchWindow

public GridStreamerBoundedSizeBatchWindow()

Method Detail

getMaximumBatches

public int getMaximumBatches()

Gets maximum number of batches can be stored in window.

Returns:

Maximum number of batches for window.

setMaximumBatches

public void setMaximumBatches(int maxBatches)

Sets maximum number of batches can be stored in window.

Parameters:

maxBatches - Maximum number of batches for window.

getBatchSize

public int getBatchSize()

Gets batch size.

Returns:

Batch size.

setBatchSize

public void setBatchSize(int batchSize)

Sets batch size.

Parameters:

batchSize - Batch size.

checkConfiguration

public void checkConfiguration()
                        throws GridException

Check window configuration.

Specified by:

checkConfiguration in class GridStreamerWindowAdapter<E>

Throws:

GridException - If failed.

stop0

protected void stop0()

Dispose window.

Specified by:

stop0 in class GridStreamerWindowAdapter<E>

reset0

protected void reset0()

Reset routine.

Specified by:

reset0 in class GridStreamerWindowAdapter<E>

size

public int size()

Gets number of events currently stored in window.

Returns:

Current size of the window.

iterator0

protected GridStreamerWindowIterator<E> iterator0()

Returns an iterator over a set of elements of type T without check for iteration limit. That is, in case concurrent thread constantly adding new elements to the window we could iterate forever.

Specified by:

iterator0 in class GridStreamerWindowAdapter<E>

Returns:

Iterator.

evictionQueueSize

public int evictionQueueSize()

Gets number of entries available for eviction.

Returns:

Number of entries available for eviction.

enqueue0

protected boolean enqueue0(E evt)

Adds event to window.

Specified by:

enqueue0 in class GridStreamerWindowAdapter<E>

Parameters:

evt - Event.

Returns:

True if event added.

pollEvicted0

protected Collection<E> pollEvicted0(int cnt)

If window supports eviction, this method will return up to cnt evicted elements.

Specified by:

pollEvicted0 in class GridStreamerWindowAdapter<E>

Parameters:

cnt - Count.

Returns:

Evicted elements.

pollEvictedBatch0

protected Collection<E> pollEvictedBatch0()

If window supports batch eviction, this method will poll next evicted batch from window. If windows does not support batch eviction but supports eviction, will return collection of single last evicted element. If window does not support eviction, will return empty collection.

Specified by:

pollEvictedBatch0 in class GridStreamerWindowAdapter<E>

Returns:

Elements from evicted batch.

dequeue0

protected Collection<E> dequeue0(int cnt)

Dequeues up to cnt elements from window. If current window size is less than cnt, will dequeue all elements from window.

Specified by:

dequeue0 in class GridStreamerWindowAdapter<E>

Parameters:

cnt - Count.

Returns:

Dequeued elements.