com.espertech.esper.client.soda

Class View

java.lang.Object

com.espertech.esper.client.soda.EPBaseNamedObject

com.espertech.esper.client.soda.View

All Implemented Interfaces:

Serializable

public class View
extends EPBaseNamedObject

A view provides a projection upon a stream, such as a data window, grouping or unique. For views, the namespace is an optional value and can be null for any-namespace.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
View() Ctor.
View(String namespace, String name, List<Expression> parameters) Creates a view.

Method Summary

Modifier and Type	Method and Description
static View	create(String name) Creates a view.
static View	create(String name, Expression... parameters) Creates a view.
static View	create(String name, List<Expression> parameters) Creates a view.
static View	create(String namespace, String name) Creates a view.
static View	create(String namespace, String name, Expression... parameters) Creates a view.
static View	create(String namespace, String name, List<Expression> parameters) Creates a view.
void	toEPLWithHash(StringWriter writer) Render view.

Methods inherited from class com.espertech.esper.client.soda.EPBaseNamedObject

getName, getNamespace, getParameters, setName, setNamespace, setParameters, toEPL

Methods inherited from class java.lang.Object

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

Constructor Detail

View

public View()

Ctor.

View

public View(String namespace,
            String name,
            List<Expression> parameters)

Creates a view.

Parameters:

namespace - is thie view namespace, i.e. "win" for data windows

name - is the view name, i.e. "length" for length window

parameters - is a list of view parameters, or empty if there are no parameters for the view

Method Detail

create

public static View create(String namespace,
                          String name)

Creates a view.

Parameters:

namespace - is thie view namespace, i.e. "win" for data windows

name - is the view name, i.e. "length" for length window

Returns:

view

create

public static View create(String name)

Creates a view.

Parameters:

name - is the view name, i.e. "length" for length window

Returns:

view

create

public static View create(String namespace,
                          String name,
                          List<Expression> parameters)

Creates a view.

Parameters:

namespace - is thie view namespace, i.e. "win" for data windows

name - is the view name, i.e. "length" for length window

parameters - is a list of view parameters, or empty if there are no parameters for the view

Returns:

view

create

public static View create(String name,
                          List<Expression> parameters)

Creates a view.

Parameters:

name - is the view name, i.e. "length" for length window

parameters - is a list of view parameters, or empty if there are no parameters for the view

Returns:

view

create

public static View create(String namespace,
                          String name,
                          Expression... parameters)

Creates a view.

Parameters:

namespace - is thie view namespace, i.e. "win" for data windows

name - is the view name, i.e. "length" for length window

parameters - is a list of view parameters, or empty if there are no parameters for the view

Returns:

view

create

public static View create(String name,
                          Expression... parameters)

Creates a view.

Parameters:

name - is the view name, i.e. "length" for length window

parameters - is a list of view parameters, or empty if there are no parameters for the view

Returns:

view

toEPLWithHash

public void toEPLWithHash(StringWriter writer)

Render view.

Parameters:

writer - to render to