com.espertech.esper.client

Class ConfigurationEngineDefaults.ViewResources

java.lang.Object

com.espertech.esper.client.ConfigurationEngineDefaults.ViewResources

All Implemented Interfaces:

Serializable

Enclosing class:

ConfigurationEngineDefaults

public static class ConfigurationEngineDefaults.ViewResources
extends Object
implements Serializable

Holds view resources settings.

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ViewResources() Ctor - sets up defaults.

Method Summary

Modifier and Type	Method and Description
boolean	isAllowMultipleExpiryPolicies() By default this setting is false and thereby multiple expiry policies provided by views can only be combined if any of the retain-keywords is also specified for the stream.
boolean	isIterableUnbound() Returns flag to indicate whether engine-wide unbound statements are iterable and return the last event.
boolean	isShareViews() Returns false to indicate the engine does not implicitly share similar view resources between statements (false is the default), or true to indicate that the engine may implicitly share view resources between statements.
void	setAllowMultipleExpiryPolicies(boolean allowMultipleExpiryPolicies) Set to false (the default) and thereby disallow multiple expiry policies provided by views and only allow if any of the retain-keywords are also specified for the stream.
void	setIterableUnbound(boolean iterableUnbound) Sets flag to indicate whether engine-wide unbound statements are iterable and return the last event.
void	setShareViews(boolean shareViews) Set the flag to instruct the engine whether to implicitly share view resources between statements or not (false by default).

Methods inherited from class java.lang.Object

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

Constructor Detail

ViewResources

protected ViewResources()

Ctor - sets up defaults.

Method Detail

isShareViews

public boolean isShareViews()

Returns false to indicate the engine does not implicitly share similar view resources between statements (false is the default), or true to indicate that the engine may implicitly share view resources between statements.

Returns:

indicator whether view resources are shared between statements if statements share same-views and the engine sees opportunity to reuse an existing view.

setShareViews

public void setShareViews(boolean shareViews)

Set the flag to instruct the engine whether to implicitly share view resources between statements or not (false by default).

Parameters:

shareViews - is true to share view resources between statements, or false to not share view resources between statements declaring same-views

isAllowMultipleExpiryPolicies

public boolean isAllowMultipleExpiryPolicies()

By default this setting is false and thereby multiple expiry policies provided by views can only be combined if any of the retain-keywords is also specified for the stream.

If set to true then multiple expiry policies are allowed and the following statement compiles without exception: "select * from MyEvent#time(10)#time(10)".

Returns:

allowMultipleExpiryPolicies indicator whether to allow combining expiry policies provided by views

setAllowMultipleExpiryPolicies

public void setAllowMultipleExpiryPolicies(boolean allowMultipleExpiryPolicies)

Set to false (the default) and thereby disallow multiple expiry policies provided by views and only allow if any of the retain-keywords are also specified for the stream.

If set to true then multiple expiry policies are allowed and the following statement compiles without exception: "select * from MyEvent#time(10)#time(10)".

Parameters:

allowMultipleExpiryPolicies - indicator whether to allow combining expiry policies provided by views

isIterableUnbound

public boolean isIterableUnbound()

Returns flag to indicate whether engine-wide unbound statements are iterable and return the last event.

Returns:

indicator

setIterableUnbound

public void setIterableUnbound(boolean iterableUnbound)

Sets flag to indicate whether engine-wide unbound statements are iterable and return the last event.

Parameters:

iterableUnbound - to set