Package org.onosproject.net

Class AbstractProjectableModel

java.lang.Object

org.onosproject.net.AbstractAnnotated

org.onosproject.net.AbstractModel

org.onosproject.net.AbstractProjectableModel

All Implemented Interfaces:

Annotated, Projectable, Provided

Direct Known Subclasses:

AbstractElement, DefaultLink

@Beta
public abstract class AbstractProjectableModel
extends AbstractModel
implements Projectable

Base model entity, capable of being extended via projection mechanism.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	AbstractProjectableModel.AnnotationDriverData	Projection of the parent entity as a driver data entity.

Field Summary

Fields

Modifier and Type	Field	Description
protected static String	NO_DRIVER
protected static String	NO_DRIVER_SERVICE

Constructor Summary

Constructors

Constructor	Description
AbstractProjectableModel()
AbstractProjectableModel(ProviderId providerId, Annotations[] annotations)	Creates a model entity attributed to the specified provider and optionally annotated.

Method Summary

Modifier and Type	Method	Description
<B extends Behaviour> B	as(Class<B> projectionClass)	Returns the specified projection of this entity if such projection is supported.
protected DriverData	asData()	Returns self as an immutable driver data instance.
protected void	bindAndCheckDriver()	Attempts to bind the driver, if not already bound and checks that the driver is bound.
protected void	bindDriver()	Attempts to binds the driver, if not already bound.
Driver	driver()	Returns the currently bound driver or null if no driver is bound.
protected static DriverService	driverService()	Returns the currently bound driver service reference.
<B extends Behaviour> boolean	is(Class<B> projectionClass)	Returns true if this entity is capable of being projected as the specified class.
protected Driver	locateDriver()	Locates the driver to be used by this entity.
static void	setDriverService(Object key, DriverService driverService)	Injects the driver service reference for use during projections into various behaviours.

Methods inherited from class org.onosproject.net.AbstractModel

providerId

Methods inherited from class org.onosproject.net.AbstractAnnotated

annotations

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.onosproject.net.driver.Projectable

project

Field Detail

NO_DRIVER_SERVICE

protected static final String NO_DRIVER_SERVICE

See Also:

Constant Field Values

NO_DRIVER

protected static final String NO_DRIVER

See Also:

Constant Field Values

Constructor Detail

AbstractProjectableModel

public AbstractProjectableModel()

AbstractProjectableModel

public AbstractProjectableModel(ProviderId providerId,
                                Annotations[] annotations)

Creates a model entity attributed to the specified provider and optionally annotated.

Parameters:

providerId - identity of the provider

annotations - optional key/value annotations

Method Detail

setDriverService

public static void setDriverService(Object key,
                                    DriverService driverService)

Injects the driver service reference for use during projections into various behaviours.

This is a privileged call; unauthorized invocations will result in illegal state exception

Parameters:

key - opaque admin key object

driverService - injected driver service

Throws:

IllegalStateException - when invoked sans authorization

driverService

protected static DriverService driverService()

Returns the currently bound driver service reference.

Returns:

driver service

driver

public Driver driver()

Returns the currently bound driver or null if no driver is bound.

Returns:

bound driver; null if none

as

public <B extends Behaviour> B as(Class<B> projectionClass)

Description copied from interface: Projectable

Returns the specified projection of this entity if such projection is supported.

Specified by:

as in interface Projectable

Type Parameters:

B - type of behaviour

Parameters:

projectionClass - requested projection class

Returns:

projection instance

is

public <B extends Behaviour> boolean is(Class<B> projectionClass)

Description copied from interface: Projectable

Returns true if this entity is capable of being projected as the specified class.

Specified by:

is in interface Projectable

Type Parameters:

B - type of behaviour

Parameters:

projectionClass - requested projection class

Returns:

true if the requested projection is supported

locateDriver

protected Driver locateDriver()

Locates the driver to be used by this entity.

The default implementation derives the driver based on the driver annotation value.

Returns:

driver for alternate projections of this model entity or null if no driver is expected or driver is not found

bindDriver

protected final void bindDriver()

Attempts to binds the driver, if not already bound.

bindAndCheckDriver

protected final void bindAndCheckDriver()

Attempts to bind the driver, if not already bound and checks that the driver is bound.

Throws:

IllegalStateException - if driver cannot be bound

asData

protected DriverData asData()

Returns self as an immutable driver data instance.

Returns:

self as driver data