Jakarta EE 11.0.0 · jakarta.el.FactoryFinder · APIdia, the JavaDoc alternative

Access	Constructor and Description
pack-priv	FactoryFinder()

Method Summary

Modifier and Type	Method and Description
pack-priv static Object	Returns: the `Class` object of the specified message factory; may not be `null` find(Class<?> The class to use when searching for the factory using the ServiceLoader mechanism serviceClass, String the name of the factory to find, which is a system property factoryId, String the implementation class name, which is to be used only if nothing else is found; `null` to indicate that there is no fallback class name fallbackClassName, Properties properties) Finds the implementation `Class` object for the given factory.
private static String	getFactoryClassName(String factoryId)
private static Object	newInstance(String className, ClassLoader classLoader, Properties properties) Creates an instance of the specified class using the specified `ClassLoader` object.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

FactoryFinder	back to summary
pack-priv FactoryFinder()

find back to summary

find	back to summary
pack-priv static Object find(Class<?> serviceClass, String factoryId, String fallbackClassName, Properties properties) Finds the implementation `Class` object for the given factory. The following search order is used: `ServiceLoader` lookup using `serviceClass` Property file located as `$java.home/lib/el.properties` System property lookup using `factoryId` Create an instance of `fallbackClassName` This method is package private so that this code can be shared. Parameters serviceClass:Class<?> The class to use when searching for the factory using the ServiceLoader mechanism factoryId:String the name of the factory to find, which is a system property fallbackClassName:String the implementation class name, which is to be used only if nothing else is found; `null` to indicate that there is no fallback class name Returns:Object the `Class` object of the specified message factory; may not be `null` Exceptions ELException: if there is an error

pack-priv static Object find(Class<?> serviceClass, String factoryId, String fallbackClassName, Properties properties)

Finds the implementation Class object for the given factory. The following search order is used:

This method is package private so that this code can be shared.

Parameters

serviceClass:Class<?>: The class to use when searching for the factory using the ServiceLoader mechanism
factoryId:String: the name of the factory to find, which is a system property
fallbackClassName:String: the implementation class name, which is to be used only if nothing else is found; null to indicate that there is no fallback class name

Returns:Object

the Class object of the specified message factory; may not be null

Exceptions

getFactoryClassName	back to summary
private static String getFactoryClassName(String factoryId)

newInstance back to summary

newInstance	back to summary
private static Object newInstance(String className, ClassLoader classLoader, Properties properties) Creates an instance of the specified class using the specified `ClassLoader` object. Exceptions ELException: if the given class could not be found or could not be instantiated

private static Object newInstance(String className, ClassLoader classLoader, Properties properties)

Creates an instance of the specified class using the specified ClassLoader object.

Exceptions

ELException:: if the given class could not be found or could not be instantiated