JViews Diagrammer
consists of several layers, each providing a specific set of
services for developers during the development cycle.
Architecture of JViews
Diagrammer
JViews Diagrammer implements a Swing-like model-view architecture,
which provides a clear separation between data and its
presentation. The JViews
Diagrammer data model is part of the Styling and Data Mapping
(SDM) engine, and it forms the connection between your
application’s data and the views on display. The two principal
responsibilities of the SDM module are notification and styling.
When it receives new data from its back-end data source, the SDM
module automatically notifies all views registered for an update.
Likewise, when the user interacts with views, the model may change.
SDM relies on the services of two underlying
layers, also included in JViews Diagrammer—the Framework SDK and
the Graph Layout SDK.
The Framework SDK sits atop Java 2D™
and Swing, and provides a comprehensive structured 2D graphics API
that includes graphic objects, interactors, views, transformations,
graphs and subgraphs, editing commands, printing, and thin client
support
The Graph Layout SDK provides a set of
sophisticated algorithms to automatically rearrange the graph
elements for optimal readability. Graph layout brings order and
clarity to complex diagrams, moving the nodes and routing to create
a more usable picture with domain-specific aesthetic conventions.