Abstract: The present invention extends a servlet filter chain model to include the ability to dynamically define helper functions. These dynamic helper functions modify the state of an XCAP or SIP request or response as it transitions through the filter chain. The dynamic helper functions are defined via descriptor files that are based on the document type. Each filter in the filter chain has the ability to reference and invoke the helper functions to modify the state of the request and/or response.

Abstract: The present invention extends a servlet filter chain model to include the ability to dynamically define helper functions. These dynamic helper functions modify the state of an XCAP or SIP request or response as it transitions through the filter chain. The dynamic helper functions are defined via descriptor files that are based on the document type. Each filter in the filter chain has the ability to reference and invoke the helper functions to modify the state of the request and/or response.

Abstract: Methods, apparatus, and products arc disclosed for interactively streaming data from a database in a high speed, low latency data communications environment that include receiving, in a stream administration server from a subscribing client device, a request for a message stream of historical data from a database; brokering, by the stream administration server, establishment of the message stream from a database feed adapter to the subscribing client device; retrieving, by the database feed adapter, the historical data from the database; converting, by the database feed adapter, the historical data from a database format to a streaming message format; and transmitting, by the database feed adapter, the historical data in the streaming message format to the subscribing client device on the message stream.