/*
Wotonomy: OpenStep design patterns for pure Java applications.
Copyright (C) 2000 Michael Powers

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see http://www.gnu.org
*/

package net.wotonomy.ui;

import java.util.List;
import java.util.Map;

import net.wotonomy.control.EODataSource;
import net.wotonomy.control.EOQualifier;

/**
* DisplayGroup provides an abstraction of a user interface,
* comprising of an ordered collection of data objects, some
* of which are displayed, and of those some are selected.
* This class extends EODisplayGroup to provide java-friendly
* convenience methods.
*
* @author michael@mpowers.net
* @author $Author: cgruber $
* @version $Revision: 904 $
*/
public class DisplayGroup extends EODisplayGroup
{
    /**
    * Returns the current data source backing this display group,
    * or null if no dataSource is currently used.
    */
    public EODataSource getDataSource()
    {
        return super.dataSource();
    }

   /**
    * Returns the current delegate for this display group,
    * or null if no delegate is currently set.
    */
    public Object getDelegate()
    {
        return delegate();
    }

    /**
    * Returns the current string matching format.
    * If not set, defaults to "%@*".
    */
    public String getDefaultStringMatchFormat()
    {
        return defaultStringMatchFormat();
    }

    /**
    * Returns the current string matching operator.
    * If not set, defaults to "caseInsensitiveLike".
    */
    public String getdefaultStringMatchOperator()
    {
        return defaultStringMatchOperator();
    }

    /**
    * Returns a Map of default values that are applied
    * to new objects that are inserted into the list.
    */
    public Map getInsertedObjectDefaultValues()
    {
        return insertedObjectDefaultValues();
    }

    /**
    * Returns the keys that were declared when read from
    * an external resource file.
    */
    public List getLocalKeys()
    {
        return localKeys();
    }

    /**
    * Returns the List of sort orderings for this display group.
    */
    public List getSortOrderings ()
    {
        return sortOrderings();
    }

    /**
    * Returns a qualifier that will be applied all the objects
    * in this display group to determine which objects will
    * be displayed.
    */
    public EOQualifier getQualifier ()
    {
        return qualifier();
    }

    /**
    * Returns a new qualifier built from the three query
    * value maps: greater than, equal to, and less than.
    */
    public EOQualifier getQualifierFromQueryValues ()
    {
        return qualifierFromQueryValues();
    }

    /**
    * Returns a Map containing the mappings of keys
    * to binding query values.
    */
    public Map getQueryBindingValues()
    {
        return queryBindingValues();
    }

    /**
    * Returns a Map containing the mappings of keys
    * to operator values.
    */
    public Map getQueryOperatorValues()
    {
        return queryOperatorValues();
    }

    /**
    * Returns a Map containing the mappings of keys
    * to query values that will be used to test for equality.
    */
    public Map getEqualToQueryValues()
    {
        return equalToQueryValues();
    }

    /**
    * Returns a Map containing the mappings of keys
    * to query values that will be used to test for greater value.
    */
    public Map getGreaterThanQueryValues()
    {
        return greaterThanQueryValues();
    }

    /**
    * Returns a Map containing the mappings of keys
    * to query values that will be used to test for lesser value.
    */
    public Map getLessThanQueryValues()
    {
        return lessThanQueryValues();
    }

    /**
    * Returns the association that is currently being edited,
    * or null if no editing is taking place.
    */
    public EOAssociation getEditingAssociation ()
    {
        return editingAssociation();
    }

    /**
    * Returns a List of associations that are observing
    * this display group.
    */
    public List getObservingAssociations()
    {
        return observingAssociations();
    }

    /**
    * Returns a List containing all objects managed by the display group.
    * This includes those objects not visible due to disqualification.
    */
    public List getAllObjects()
    {
        return allObjects();
    }

    /**
    * Returns a List of all objects in the display group
    * that are currently displayed by the associations.
    * The list is a copy of the internal displayed object list.
    */
    public List getDisplayedObjects()
    {
        return displayedObjects();
    }

    /**
    * Returns the currently selected object, or null if
    * there is no selection.
    */
    public Object getSelectedObject()
    {
        return selectedObject();
    }

    /**
    * Returns a List containing all selected objects, if any.
    * Returns an empty list if no objects are selected.
    */
    public List getSelectedObjects()
    {
        return selectedObjects();
    }

    /**
    * Returns a List containing the indexes of all selected
    * objects, if any.  The list contains instances of
    * java.lang.Number; call intValue() retrieve the index.
    */
    public List getSelectionIndexes()
    {
        return selectionIndexes();
    }

    /**
    * Returns the index of the changed object.  If more than
    * one object has changed, -1 is returned.
    */
    public int getUpdatedObjectIndex()
    {
        return updatedObjectIndex();
    }

    /**
    * Returns a value on the selected object for the specified key.
    */
    public Object getSelectedObjectValueForKey ( String aKey )
    {
        return selectedObjectValueForKey( aKey );
    }

    /**
    * Returns the value for the specified key on the specified object.
    */
    public Object getValueForObject ( Object anObject, String aKey )
    {
        return valueForObject( anObject, aKey );
    }

    /**
    * Calls valueForObject() for the object at the specified index.
    */
    public Object getValueForObjectAtIndex ( int anIndex, String aKey )
    {
        return valueForObjectAtIndex( anIndex, aKey );
    }

    /**
    * Specifies the default string matching format for all
    * display groups.
    */
    public static String getGlobalDefaultStringMatchFormat ()
    {
        return globalDefaultStringMatchFormat();
    }

    /**
    * Specifies the default string matching operator for all
    * display groups.
    */
    public static String getGlobalDefaultStringMatchOperator ()
    {
        return globalDefaultStringMatchOperator();
    }
}    

/*
 * $Log$
 * Revision 1.2  2006/02/18 23:14:35  cgruber
 * Update imports and maven dependencies.
 *
 * Revision 1.1  2006/02/16 13:22:22  cgruber
 * Check in all sources in eclipse-friendly maven-enabled packages.
 *
 * Revision 1.2  2002/05/17 15:01:49  mpowers
 * Implemented dynamic lookup of delegate methods so delegates no longer
 * need to implement the DisplayGroup.Delegate interface.
 *
 * Revision 1.1  2002/03/26 21:24:43  mpowers
 * Contributing DisplayGroup as convenience for people coming from java.
 *
 *
 */