Package org.apache.activemq.util

Interface FactoryFinder.ObjectFactory

All Known Implementing Classes:

FactoryFinder.StandaloneObjectFactory

Enclosing class:

FactoryFinder<T>

public static interface FactoryFinder.ObjectFactory

The strategy that the FactoryFinder uses to find load and instantiate Objects can be changed out by calling the FactoryFinder.setObjectFactory(org.apache.activemq.util.FactoryFinder.ObjectFactory) method with a custom implementation of ObjectFactory. The default ObjectFactory is typically changed out when running in a specialized container environment where service discovery needs to be done via the container system. For example, in an OSGi scenario.

Method Summary

Modifier and Type	Method	Description
Object	create(String path)
default <T> T	create(String path, Class<T> requiredType, Set<Class<? extends T>> allowedImpls)	This method loads objects by searching for classes in the given path.

Method Details

create

Object create(String path)
       throws IllegalAccessException,
InstantiationException,
IOException,
ClassNotFoundException

Parameters:

path - the full service path

Returns:

Throws:

IllegalAccessException

InstantiationException

IOException

ClassNotFoundException

create

default <T> T create(String path,
 Class<T> requiredType,
 Set<Class<? extends T>> allowedImpls)
              throws IllegalAccessException,
InstantiationException,
IOException,
ClassNotFoundException

This method loads objects by searching for classes in the given path. A requiredType and Set of allowed implementations are provided for implementations to use for validation. Note is up to the actual implementations that implement FactoryFinder.ObjectFactory to decide how to use both parameters. By default, the method just delegates to create(String)

Parameters:

path - the full service path

requiredType - the requiredType any objects must implement

allowedImpls - The set of allowed impls

Returns:

Throws:

IllegalAccessException

InstantiationException

IOException

ClassNotFoundException