SAML_DLLLOCAL PluginManager<MetadataProvider,string,const DOMElement*>::Factory XMLMetadataProviderFactory;
SAML_DLLLOCAL PluginManager<MetadataProvider,string,const DOMElement*>::Factory DynamicMetadataProviderFactory;
SAML_DLLLOCAL PluginManager<MetadataProvider,string,const DOMElement*>::Factory ChainingMetadataProviderFactory;
SAML_DLLLOCAL PluginManager<MetadataProvider,string,const DOMElement*>::Factory XMLMetadataProviderFactory;
SAML_DLLLOCAL PluginManager<MetadataProvider,string,const DOMElement*>::Factory DynamicMetadataProviderFactory;
SAML_DLLLOCAL PluginManager<MetadataProvider,string,const DOMElement*>::Factory ChainingMetadataProviderFactory;