Package com.espertech.esper.common.client.configuration.compiler

Class ConfigurationCompilerStreamSelection

java.lang.Object

com.espertech.esper.common.client.configuration.compiler.ConfigurationCompilerStreamSelection

All Implemented Interfaces:

Serializable

public class ConfigurationCompilerStreamSelection
extends Object
implements Serializable

Holds default settings for stream selection in the select-clause.

See Also:

• Serialized Form

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
StreamSelector	getDefaultStreamSelector()	Returns the default stream selector.
void	setDefaultStreamSelector(StreamSelector defaultStreamSelector)	Sets the default stream selector.

Methods inherited from class java.lang.Object

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

Constructor Details

ConfigurationCompilerStreamSelection

protected ConfigurationCompilerStreamSelection()

Ctor - sets up defaults.

Method Details

getDefaultStreamSelector

public StreamSelector getDefaultStreamSelector()

Returns the default stream selector.

Statements that select data from streams and that do not use one of the explicit stream selection keywords (istream/rstream/irstream), by default, generate selection results for the insert stream only, and not for the remove stream.

This setting can be used to change the default behavior: Use the RSTREAM_ISTREAM_BOTH value to have your statements generate both insert and remove stream results without the use of the "irstream" keyword in the select clause.

Returns:

default stream selector, which is ISTREAM_ONLY unless changed

setDefaultStreamSelector

public void setDefaultStreamSelector(StreamSelector defaultStreamSelector)

Sets the default stream selector.

Statements that select data from streams and that do not use one of the explicit stream selection keywords (istream/rstream/irstream), by default, generate selection results for the insert stream only, and not for the remove stream.

This setting can be used to change the default behavior: Use the RSTREAM_ISTREAM_BOTH value to have your statements generate both insert and remove stream results without the use of the "irstream" keyword in the select clause.

Parameters:

defaultStreamSelector - default stream selector