org.csstudio.utility.pv

Class PVFactoryProvider

java.lang.Object

org.csstudio.utility.pv.PVFactoryProvider

public final class PVFactoryProvider
extends Object

PVFactoryProvider is the provider of the PVFactory. This provider can be used to load the default service that is used for creating the PVs or to load any factory that exists on the classpath. Use this provider to load the factory when you need it rather than creating the factory directly.

Method Summary

Modifier and Type	Method and Description
PVFactory	getDefaultFactory() Search the registry for all services that implement PVFactory.
PVFactory	getFactory(String clazz) Returns an instance of the factory with the given name.
static PVFactoryProvider	getInstance() Returns the singleton instance of the factory provider.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static PVFactoryProvider getInstance()

Returns the singleton instance of the factory provider.

Returns:

the singleton instance of this provider

getDefaultFactory

public PVFactory getDefaultFactory()

Search the registry for all services that implement PVFactory. It returns the first factory that it encounters. In general there should never be more than one.

Returns:

the default PVFactory instance

getFactory

public PVFactory getFactory(String clazz)
                     throws ClassNotFoundException,
                            InstantiationException,
                            IllegalAccessException

Returns an instance of the factory with the given name. The name is the name of the class, which can be either a full name or a simple name.

Parameters:

clazz - the class name to load

Returns:

the factory

Throws:

ClassNotFoundException - in case the class cannot be found

InstantiationException - in case the factory cannot be instantiated

IllegalAccessException - in case the factory cannot be instantiated