Package ucar.unidata.data

Interface DataContext

All Superinterfaces:
IdvContext
All Known Subinterfaces:
ControlContext, ViewContext
All Known Implementing Classes:
DefaultIdv, IdvServer.MyIdv, IntegratedDataViewer, MultiPaneIdv
public interface DataContext extends IdvContext
This interface defines the context in which the collection of data classes (e.g., DataChoice, DirectDataChoice, DerivedDataDescriptor, DataSource etc.) exist. For now the DataContext is the IntegratedDataViewer (IDV). It is mostly used by the DerivedDataChoice to have the user select the DataChoice operands needed when evaluating the DerivedDataChoice.
Version:
$Revision: 1.29 $Date: 2006/12/01 20:41:21 $
Author:
IDV development team

  • Method Details

    • getIdv

      IntegratedDataViewer getIdv()
      Get the reference to the idv
      Returns:
      The idv

    • getDataSources

      List getDataSources()
      Return the list of DataSource objects currently held
      Returns:
      List of DataSources

    • getAllDataSources

      List getAllDataSources()
      Return the list of DataSource objects currently held, including the formula data source
      Returns:
      List of DataSources

    • selectDataChoices

      List selectDataChoices(List labels)
      Select a set of DataChoice-s, one for each label (String) contained within the labels List. This may return null to denote a user cancellation.
      Parameters:
      labels - labels to associate with choices
      Returns:
      List of DataChoices

    • getPreference

      Object getPreference(String pref)
      Get the given user preference
      Parameters:
      pref - The name of the preference
      Returns:
      The value

    • selectUserChoices

      List selectUserChoices(String msg, List userChoices)
      Select a set of Strings, one for each label (String) contained within the userChoices List. This may return null to denote a user cancellation. Typically a user interface is generated based on the userChoices that is made of a set of JTextFields in which the user enters the required values.
      Parameters:
      msg - message prompt
      userChoices - list of user choices
      Returns:
      List of user choices (may be null)

    • dataSourceChanged

      void dataSourceChanged(DataSource source)
      This method gets called when something changed in the data source.
      Parameters:
      source - The data source that changed

    • loadDataSource

      boolean loadDataSource(DataSource dataSource)
      Add the given DataSource. For the IDV this entails displaying the DataSource in the jtrees and menus, etc.
      Parameters:
      dataSource - the DataSource to load
      Returns:
      true if the DataSource was loaded

    • getJythonManager

      JythonManager getJythonManager()
      Return the JythonManager. This is the class that manages the set of jython interpreters, etc.,
      Returns:
      The JythonManager

    • getResourceManager

      IdvResourceManager getResourceManager()
      Return the IdvResourceManager. This is the class that manages the set of idv resources etc.,
      Returns:
      The IdvResourcemanager

    • getObjectStore

      XmlObjectStore getObjectStore()
      Return the XmlObjectStore that is used to get and store persistent user state.
      Returns:
      The object store

    • selectDataType

      String selectDataType(Object definingObject)
      Ask the user what data type to use
      Parameters:
      definingObject - defines the data source to be created
      Returns:
      The data type or null

    • selectDataType

      String selectDataType(Object definingObject, String label)
      Ask the user what data type to use
      Parameters:
      definingObject - defines the data source to be created
      label - the label
      Returns:
      The data type or null