Package de.nava.informa.core

This package contains interfaces for the news channel objects, it builds the core API for all news channel storage implementation.

See:
Description

Interface Summary

CategoryIF	This interface is implemented by objects representing categories in which channels could be organised in the news channel object model.
ChannelBuilderIF	This interface allows the channel generators (like a parser) to create the channel object model independent from which implementation is used (in-memory or persistent store).
ChannelExporterIF	A channel exporter is used to write channel objects in an implementation dependent way to an implicit destination.
ChannelGroupIF	Interface to allow to implement a container of channels that may be used by a channel registry (through a front-end) or as the entry point for an application using this library.
ChannelIF	This interface is implemented by objects representing channels in the news channel object model.
ChannelObservableIF	Classes implementing this interface may want to inform the subscribed observers that a specific channel event has happend (like for example a new item was found).
ChannelObserverIF	A class implementing this interface most likely wants to react on the observed event.
ChannelParserIF	Interface for a parser which reads in document instances according to some specific channel format specification and generates a news channel object.
ChannelSubscriptionIF	Implementing classes hold information about wether a channel should be updated or not, when the channel was last time updated (retrieved) and in which interval subsequent updated should be executed.
CloudIF	This interface is implemented by Cloud objects supporting RSS 0.92 and RSS 2.0 Publish and Subscribe.
FeedIF	This interface is implemented by objects representing feeds (containing metadata about channels, like for example OCS and OPML) in the news channel object model.
IdGeneratorIF	Interface that allows to implement different identifier generation strategies.
ImageIF	This interface is implemented by objects representing an image assigned to a channel in the news channel object model.
ItemEnclosureIF	This interface is implemented by objects representing an enclosure.
ItemGuidIF	This interface is implemented by objects representing the GUID of a news item.
ItemIF	This interface is implemented by objects representing items (that are links to articles) in the news channel object model.
ItemMetadataIF	Implementing class holds information about the belonging news item.
ItemSourceIF	This interface is implemented by objects representing the source of a news item.
TextInputIF	This interface is implemented by objects representing an text input field assigned to a channel in the news channel object model.
UserIF	This interface is implemented by objects storing user specific information.
WithCategoriesMIF	Meta-, or markerinterface, specifying objects, having categories collection behind.
WithChannelMIF	Meta-, or markerinterface, specifying objects, having channel.
WithChildrenMIF<C>	Meta-, or markerinterface, specifying objects, having children.
WithCreatorMIF	Meta-, or markerinterface, specifying objects, having creator.
WithDescriptionMIF	Meta-, or markerinterface, specifying objects, having description.
WithElementsAndAttributesMIF	Meta-, or markerinterface, specifying objects, having nested elements & attributes.
WithIdMIF	Meta-, or markerinterface, specifying objects, having id.
WithLinkMIF	Meta-, or markerinterface, specifying objects, having link.
WithLocationMIF	Meta-, or markerinterface, specifying objects, having location.
WithNameMIF	Meta-, or markerinterface, specifying objects, having name.
WithSiteMIF	Meta-, or markerinterface, specifying objects, having site url, description text and copyright information.
WithTitleMIF	Meta-, or markerinterface, specifying objects, having title.
WithUnreadMIF	Meta-, or markerinterface, specifying objects, having Unread.

Enum Summary

ChannelFormat	Enums to describe which syntax is used by a channel description.
ChannelUpdatePeriod

Exception Summary

ChannelBuilderException	Indicates that a channel builder encountered an unexpected condition.
ParseException	Exception which is thrown if a syntax problem is encountered while a document instance (like a channel description) is read in.
UnsupportedFormatException	An exception thrown when no appropiate parser is available for a specific document instance.

Package de.nava.informa.core Description

This package contains interfaces for the news channel objects, it builds the core API for all news channel storage implementation. This separation enables applications to be written without any dependencies on storage-specific backends.

To make it clear again, this package contains no implementations of the declared interfaces. All implementations can be found in separate packages with the de.nava.informa.impl prefix. In addition to interfaces there are also exceptions defined by this package that are raised when violations of the news channel model occur.