org.codehaus.stax2.osgi.Stax2InputFactoryProvider Maven / Gradle / Ivy
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package org.codehaus.stax2.osgi;
import org.codehaus.stax2.XMLInputFactory2;
import org.codehaus.stax2.XMLStreamProperties;
/**
* Simple interface to be used for registering objects that
* can construct {@link XMLInputFactory2} instances with OSGi framework.
* The added indirection (provider constructing factory) is needed because
* of impedance between OSGi service objects (which are essentially
* singletons) and Stax/Stax2 factories which are not.
*
* Note: implementations of provider should NOT use introspection
* via {@link javax.xml.stream.XMLInputFactory#newInstance} as it will
* not work with OSGi. Instead, providers should directly construct
* instances of concrete factory they represent. That is, there will
* be one provider implementation per concrete Stax/Stax2 implementation
*/
public interface Stax2InputFactoryProvider
{
/*
///////////////////////////////////////////////////////////////
// Service property names to use with the provider
///////////////////////////////////////////////////////////////
*/
/**
* Service property that defines name of Stax2 implementation that
* this provider represents.
*/
public final static String OSGI_SVC_PROP_IMPL_NAME = XMLStreamProperties.XSP_IMPLEMENTATION_NAME;
/**
* Service property that defines version of Stax2 implementation that
* this provider represents.
*/
public final static String OSGI_SVC_PROP_IMPL_VERSION = XMLStreamProperties.XSP_IMPLEMENTATION_VERSION;
/*
///////////////////////////////////////////////////////////////
// Public provider API
///////////////////////////////////////////////////////////////
*/
/**
* Method called to create a new {@link XMLInputFactory2} instance.
*
* @return Input factory configured to implementation-specific
* default settings (some of which are mandated by Stax and Stax2
* specifications)
*/
public XMLInputFactory2 createInputFactory();
}