| IBM WebSphere Application ServerTM
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Interface Summary | |
ExtensionConfig | The ExtensionConfig interface provides basic initialization and runtime configuration information that is available to RRD extension generators and handlers. |
ExtensionResponse | The ExtensionResponse class defines response information provided by an extension generator or handler during processing. |
ExtensionRequest | The ExtensionRequest class defines request information provided to an extension generator or handler during processing. |
ExtensionChain | An ExtensionChain allows an arbitrary sequence of extension generators or extension handlers to be executed. |
Class Summary | |
ExtensionResponseWrapper | The ExtensionResponseWrapper class defines a wrapper for objects, which are in turn provided by an extension generator or handler during processing. |
ExtensionRequestWrapper | The ExtensionRequestWrapper class defines a wrapper for objects, which are in turn provided to extension generators or handlers for processing. |
This package provides the core interfaces necessary to support developing
extensions for Remote Request Dispatch (RRD).
An RRD extension consists of an extension generator and
extension handler pair. An extension generator is a class that
implements {@link com.ibm.wsspi.rrd.extension.generator.ExtensionGenerator}
and is responsible for attaching extension data to an RRD request.
After an RRD request has been received, it is the responsibility of an
extension handler (which is a class that implements
{@link com.ibm.wsspi.rrd.extension.handler.ExtensionHandler}) to act upon
the extension data. Extension generators and handlers both rely on
{@link com.ibm.wsspi.rrd.extension.ExtensionRequest} and
{@link com.ibm.wsspi.rrd.extension.ExtensionResponse} objects at runtime in
order to interact with the extension data associated with an RRD request or
response. Additionally, extension generators and handlers may also rely on
deployment descriptor configuration data, which is provided by an instance
of {@link com.ibm.wsspi.rrd.extension.ExtensionConfig}.
A sequence of extension generators or extension handlers is referred to as
an extension chain, and is represented by
{@link com.ibm.wsspi.rrd.extension.ExtensionChain}. An extension chain can
only contain either extension generators or extension handlers, and the
chain type determines what happens when the chain is executed and at what
point in the RRD request/response cycle that it is executed.
Generally, the types of extension chains, generators, and handlers will
need to vary depending on the environment in which RRD is used (i.e., in a
servlet environment, a portal environment, etc.). To that end, the
{@link com.ibm.wsspi.rrd.extension.factory.ExtensionDelegator} class allows for
dynamic selection of extension types based on the servlet request/response
information available in the runtime environment.
| IBM WebSphere Application ServerTM
Release 6 |
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