Package com.caplin.transformer.module

Provides the core interfaces and classes that are required to write a Java Transformer module.

See: Description

Interface Summary

Interface	Description
DataCache	Allows a Transformer module to retrieve or remove data from the Transformer core's cache.
DataProvider	The interface that must be implemented by a class that will actively publish data for DataSource objects that match a specific name pattern.
DataProviderRegistrar	Allows a Transformer module to register itself with the Transformer core as a provider or source of data.
Subscriber	Allows a Transformer module to subscribe, and unsubscribe, listeners interested in receiving updates for objects that match a particular name pattern, or are of a specific object type.
SubscriptionListener	The listener interface for receiving update and object deletion events for a particular subscription.
TransformerAccessor	Allows a Transformer module access to the main interfaces it requires to interact with the Transformer core.
TransformerFlags	Defines flags used by DataCache.put and TransformerData.send.
TransformerModule	Defines the interface to be implemented by a Java Transformer module.

Class Summary

Class	Description
DataProviderResponse	The response returned by the DataProvider.request(int, java.lang.String) and DataProvider.discard(int, java.lang.String) methods.
DataSourceUpdateEvent	Allows the Transformer module to access information about an update that has been received.
ObjectStatus	Represents the status of an object in the Transformer's cache.
ObjectType	This class defines all the types of objects that are supported by the Transformer.
TransformerModuleVersion

Package com.caplin.transformer.module Description

Provides the core interfaces and classes that are required to write a Java Transformer module. The most important of these are TransformerModule, which is the interface that must be implemented by a class that controls the interaction between the module and the Transformer, and TransformerAccessor, which enables the module to interact with the Transformer.

The Subscriber interface allows a Transformer module to subscribe listeners for updates to particular object. The listener will be informed of each update that occurs to a subscribed object.

The DataCache interface provides a Transformer module the ability to retrieve data for a particular object from the Transformer core's cache of data.

The DataProviderRegistrar interface allows a Transformer module to register listeners for requests for particular objects. The listener will be informed of any requests for those objects, and can decide whether it will contribute the data for the object or not.