Package com.espertech.esper.common.client.soda

Class ContextDescriptorHashSegmented

java.lang.Object

com.espertech.esper.common.client.soda.ContextDescriptorHashSegmented

All Implemented Interfaces:

ContextDescriptor, Serializable

public class ContextDescriptorHashSegmented
extends Object
implements ContextDescriptor

Hash-segmented context.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ContextDescriptorHashSegmented()	Ctor.
ContextDescriptorHashSegmented(List<ContextDescriptorHashSegmentedItem> items, int granularity, boolean preallocate)	Ctor.

Method Summary

Modifier and Type	Method	Description
int	getGranularity()	Returns the granularity.
List<ContextDescriptorHashSegmentedItem>	getItems()	Returns hash items.
boolean	isPreallocate()	Returns flag indicating whether to allocate context partitions upon statement creation, or only when actually referred to
void	setGranularity(int granularity)	Sets the granularity.
void	setItems(List<ContextDescriptorHashSegmentedItem> items)	Sets categories
void	setPreallocate(boolean preallocate)	Set the flag indicating whether to allocate context partitions upon statement creation, or only when actually referred to
void	toEPL(StringWriter writer, EPStatementFormatter formatter)	Format as EPL.

Methods inherited from class java.lang.Object

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

Constructor Details

ContextDescriptorHashSegmented

public ContextDescriptorHashSegmented()

Ctor.

ContextDescriptorHashSegmented

public ContextDescriptorHashSegmented(List<ContextDescriptorHashSegmentedItem> items,
 int granularity,
 boolean preallocate)

Ctor.

Parameters:

items - list of hash code functions and event types to apply to

granularity - a number between 1 and Integer.MAX for parallelism

preallocate - true to allocate each context partition at time of statement creation

Method Details

getItems

public List<ContextDescriptorHashSegmentedItem> getItems()

Returns hash items.

Returns:

hash items

getGranularity

public int getGranularity()

Returns the granularity.

Returns:

granularity

setGranularity

public void setGranularity(int granularity)

Sets the granularity.

Parameters:

granularity - granularity to set

isPreallocate

public boolean isPreallocate()

Returns flag indicating whether to allocate context partitions upon statement creation, or only when actually referred to

Returns:

preallocation flag

setPreallocate

public void setPreallocate(boolean preallocate)

Set the flag indicating whether to allocate context partitions upon statement creation, or only when actually referred to

Parameters:

preallocate - preallocation flag

setItems

public void setItems(List<ContextDescriptorHashSegmentedItem> items)

Sets categories

Parameters:

items - categories to set

toEPL

public void toEPL(StringWriter writer,
 EPStatementFormatter formatter)

Description copied from interface: ContextDescriptor

Format as EPL.

Specified by:

toEPL in interface ContextDescriptor

Parameters:

writer - output

formatter - formatter