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June , 200 7 PowerPoint Presentation
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Extending Instant JChem 2.0 Architecture & API. Petr Hamernik. June , 200 7. Architecture goals. Rich client with modern user interface Extensible to multi-tier architecture Data definition/manipulation abstract layer Reuse proven and stable software components

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architecture goals
Architecture goals
  • Rich client with modern user interface
  • Extensible to multi-tier architecture
  • Data definition/manipulation abstract layer
  • Reuse proven and stable software components
  • Componentized and extensible design
  • Tidy and clear Application programming interface (API)‏
netbeans platform key features
NetBeans Platform – key features
  • User interface management
  • Data and presentation management
  • Graphical editing
  • Wizards
  • Settings management
  • Internet-based update delivery
  • Utilities
  • Lot's of various plug-ins
ijc architecture overview
IJC Architecture overview
  • IJC is implemented as set of plugins into NetBeans platform
  • IJC consists of:
    • DIF
    • IJC Core
    • Other plugins:
      • Form designer
      • Grid view
      • UI Widgets
discovery informatics framework dif
Discovery Informatics Framework (DIF)‏
  • Abstract non-visual layer on top of data sources
  • Provides data model and its persistence
  • Independent on most of NetBeans
  • The basic functionality/API:
    • Data definition operations
    • Data manipulation operations
    • Common utilities and support classes
    • Security
    • Extensive usage of JavaBeans patterns
instant jchem core ijc core
Instant JChem Core (IJC Core)‏
  • IJC Core = User interface framework and its basic implementations
  • Three levels of visualization:
    • 1. View windows definition (gridview, formview)‏
    • 2. Widgets definition
    • 3. Renderers definition
    • Definition of contracts between the levels
    • Persistence support
  • Basic context descriptions objects (in NetBeans known as Cookies)‏
  • Implementations of basic context sensitive actions based on Cookies
  • The basic wizards implementation
other extensions included in ijc 2 0
Other extensions included in IJC 2.0
  • Gridview
  • Form designer
  • The basic widgets – table, molecule pane, text field, date field
  • The basic renderers – numeric, text, structure
  • Chemistry tools extensions
  • more is coming...
ijc key extension points
IJC Key extension points
  • Field types
    • URL resource field, range field, …
    • Including new operators for search
    • Data convertors
  • Table entity types
  • Visualization widgets usable in form designer
    • Graph widgets
  • Renderers (standalone widget vs. table column)‏
  • Context sensitive actions (active table, column, row, widget, ...)‏
    • Data processing, Chemistry tools
widget renderer example
Widget/Renderer example
  • To add a new renderer you need to write:
    • Renderer class (IJCWidgetRenderer, IJCWidgetTextRenderer, TableCellRenderer)‏
    • Renderer's beaninfo to publish appropriate properties
    • Renderer factory class (RendererFactory)‏
    • Register the factory into xml configuration file
  • To add a whole new widget you need to write:
    • Widget class (AbstractSingleFieldWidget / IJCWidget.DesignerHandle)‏
    • Widget factory class (IJCWidgetFactory)‏
    • Provide icons
    • Register the factory into xml configuration file
resources
Resources
  • IJC 2.0 Developers docs, including API javadocs and examples:
    • http://www.chemaxon.com/instantjchem/ijc_2_0/docs/developer/api/index.html
    • API stability levels based on packages or classes
    • API is still under development, please consult us first
  • NetBeans APIs:
    • http://platform.netbeans.org/tutorials/index.html
    • http://www.netbeans.org/download/dev/javadoc/