oracle.dacf.util
Class MultiSelectDelete

java.lang.Object
  oracle.dacf.util.MultiSelectDelete

All Implemented Interfaces:

java.util.EventListener, NavigationBarButtonClickListener

public class MultiSelectDelete

extends java.lang.Object

implements NavigationBarButtonClickListener

An utility class which can be used to implement multi-select delete in a GridControl.
By default, the NavigationBar delete button delete's the current row of the rowset to which it is bound to. When a GridControl configured to work in MultiSelection mode is used in association with a NavigationBar, this behaviour may not be desirable. The end user would expect all selected rows to be deleted. The default behaviour of the NavigationBar delete button can be overridden by using this class.
When an instance of this class is registered as a NavigationBarButtonClick Listener it responds to the 'delete' button click by deleting all rows that are selected in the GridControl. After the delete operation the first row prior to deletion will be the selected row. This behaviour can be changed by overriding this class and implementing the getNewCurrencyAfterDelete() method.
Usage :

  // support for deleting all selected rows in grid
  MultiSelectDelete msd = new MultiSelectDelete();
  NavigationBar n =  new NavigationBar();
  GridControl   g =  new GridControl();

  // put grid in multiselect mode
  g.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);

  // add the grid to the MultiSelectDelete
  msd.addGridControl(g);

  // hook the MultiSelectDelete into the NavBar
  n.addVetoableNavigationBarButtonClickListener(msd);
  

Constructor Summary

MultiSelectDelete()

MultiSelectDelete(GridControl g)

Method Summary

void	addGridControl(GridControl g)
protected void	deleteSelectedRows(javax.infobus.ScrollableRowsetAccess s, int[] rows)
protected int	getNewCurrencyAfterDelete(int[] rows) An arbitary selection algo which assumes that the first row before selection will be the new current row.
protected javax.infobus.ScrollableRowsetAccess	getRowset(GridControl g) get rowset which we can use to delete things
void	navigationBarButtonClicked(NavigationBarButtonClickEvent event)
void	removeGridControl(GridControl g)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MultiSelectDelete

public MultiSelectDelete()

MultiSelectDelete

public MultiSelectDelete(GridControl g)

Method Detail

addGridControl

public void addGridControl(GridControl g)

removeGridControl

public void removeGridControl(GridControl g)

navigationBarButtonClicked

public void navigationBarButtonClicked(NavigationBarButtonClickEvent event)
                                throws NavigationBarButtonClickVetoException

Specified by:

navigationBarButtonClicked in interface NavigationBarButtonClickListener

Throws:

NavigationBarButtonClickVetoException

deleteSelectedRows

protected void deleteSelectedRows(javax.infobus.ScrollableRowsetAccess s,
                                  int[] rows)

getRowset

protected javax.infobus.ScrollableRowsetAccess getRowset(GridControl g)

get rowset which we can use to delete things

getNewCurrencyAfterDelete

protected int getNewCurrencyAfterDelete(int[] rows)

An arbitary selection algo which assumes that the first row before selection will be the new current row.