Implementations of the View and Controller interfaces are the main points where Danube can integrate with other technologies:

Spring Webflow - DanubeFlowController. This is a controller implementation. It supplies the name of the view that should be displayed along with a map that represents the model.
Freemarker - FreeMarkerViewAdapter. This is a view implementation.
Velocity template engine - VelocityViewAdapter_. This is a view implementation.
Tapestry framework - TapestryConnectionHandler_. This is a connection handler implementation.

System Message: WARNING/2 (<string>, line 23)

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Other technologies can be added in the similar way as those above.

Docutils System Messages

System Message: ERROR/3 (<string>, line 21); backlink

Unknown target name: "velocityviewadapter".

System Message: ERROR/3 (<string>, line 22); backlink

Unknown target name: "tapestryconnectionhandler".