Class ColumnSelectorModel


  • public class ColumnSelectorModel
    extends java.lang.Object
    Model for a ColumnSelector. Contains information about how you get a value of a given type (such as Right Ascension) from a table.
    Since:
    6 Oct 2004
    Author:
    Mark Taylor (Starlink)
    • Constructor Summary

      Constructors 
      Constructor Description
      ColumnSelectorModel​(TopcatModel tcModel, uk.ac.starlink.table.ValueInfo info)
      Constructs a new model for a given table and value type.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      uk.ac.starlink.table.ColumnData getColumnData()
      Returns the (effective) column currently selected by the user.
      javax.swing.ComboBoxModel getColumnModel()
      Returns the model used for choosing columns.
      javax.swing.ComboBoxModel getConverterModel()
      Returns the model used for choosing converters.
      uk.ac.starlink.table.ValueInfo getValueInfo()
      Returns this model's value description.
      void setTable​(TopcatModel tcModel)
      Sets the table that this selector model is configured for.
      boolean setTextValue​(java.lang.String colTxt, java.lang.String convTxt)
      Sets the content of this model given textual values for the column specification and for the converter.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • ColumnSelectorModel

        public ColumnSelectorModel​(TopcatModel tcModel,
                                   uk.ac.starlink.table.ValueInfo info)
        Constructs a new model for a given table and value type.
        Parameters:
        tcModel - table model
        info - description of the kind of column which is required
    • Method Detail

      • setTable

        public void setTable​(TopcatModel tcModel)
        Sets the table that this selector model is configured for.
        Parameters:
        tcModel - new table
      • getValueInfo

        public uk.ac.starlink.table.ValueInfo getValueInfo()
        Returns this model's value description.
        Returns:
        value info
      • getColumnModel

        public javax.swing.ComboBoxModel getColumnModel()
        Returns the model used for choosing columns. Elements of the model which contain usable data will be instances of ColumnData and will not take account of any selected converter. The selected item may be of some other type (currently String), and this should be ignored (treated as null) for the purposes of data access.
        Returns:
        columns combo box model
      • getConverterModel

        public javax.swing.ComboBoxModel getConverterModel()
        Returns the model used for choosing converters. May be null if there is no choice.
        Returns:
        converter combo box model, or null
      • getColumnData

        public uk.ac.starlink.table.ColumnData getColumnData()
        Returns the (effective) column currently selected by the user. It takes into account the column and (if any) conversion selected by the user.

        The returned ColumnData object has an intelligent implementation of equals (and hashCode), in that two invocations of this method without any intervening change of of state of this model will evaluate equal.

        Returns:
        ColumnData representing the currently-selected column, or null if none is selected
      • setTextValue

        public boolean setTextValue​(java.lang.String colTxt,
                                    java.lang.String convTxt)
        Sets the content of this model given textual values for the column specification and for the converter. This is done on a best-efforts basis; the return status indicates whether it worked.
        Parameters:
        colTxt - text content for column specification
        convTxt - name of converter required; may be null
        Returns:
        true iff configuration was successful