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## ru.biosoft.access
Class DataCollectionUndoListener

    java.lang.Object
      ru.biosoft.access.DataCollectionUndoListener

All Implemented Interfaces:
  DataCollectionListener, java.util.EventListener, java.beans.PropertyChangeListener

public class DataCollectionUndoListener
extends java.lang.Object
implements java.beans.PropertyChangeListener, DataCollectionListener

These class listen all changes inn DataCollection, converts them to UndoableEdit and add them to UndoManager.

Field Summary
`protected DataElement` | `elementToRemove`

Constructor Summary
`DataCollectionUndoListener(com.beanexplorer.undo.TransactionListener transactionListener)`

Method Summary
`void` | `elementAdded(DataCollectionEvent e)` Called after data element was added.
`void` | `elementChanged(DataCollectionEvent e)` Called after data element was changed.
`void` | `elementRemoved(DataCollectionEvent e)` Called after data element was removed.
`void` | `elementWillAdd(DataCollectionEvent e)` Called before data element will be added.
`void` | `elementWillChange(DataCollectionEvent e)` Called before data element will be changed.
`void` | `elementWillRemove(DataCollectionEvent e)` Called before data element will be removed.
`void` | `propertyChange(java.beans.PropertyChangeEvent pce)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### elementToRemove

    protected DataElement elementToRemove

Constructor Detail

### DataCollectionUndoListener

    public DataCollectionUndoListener(com.beanexplorer.undo.TransactionListener transactionListener)

Method Detail

### propertyChange

    public void propertyChange(java.beans.PropertyChangeEvent pce)

  Specified by:
    `propertyChange` in interface `java.beans.PropertyChangeListener`

### elementWillAdd

    public void elementWillAdd(DataCollectionEvent e)
                        throws DataCollectionVetoException,
                               java.lang.Exception

  Description copied from interface: `DataCollectionListener`
  Called before data element will be added.

  Specified by:
    `elementWillAdd` in interface `DataCollectionListener`
  Parameters:
    `e` - DataCollectionEvent information about will added data element.
  Throws:
    `DataCollectionVetoException` - If listener cancel adding of data element.
    `java.lang.Exception` - If error occured.

### elementAdded

    public void elementAdded(DataCollectionEvent e)
                      throws java.lang.Exception

  Description copied from interface: `DataCollectionListener`
  Called after data element was added.

  Specified by:
    `elementAdded` in interface `DataCollectionListener`
  Parameters:
    `e` - DataCollectionEvent information about added data element.
  Throws:
    `java.lang.Exception` - If error occured.

### elementWillRemove

    public void elementWillRemove(DataCollectionEvent e)
                           throws DataCollectionVetoException,
                                  java.lang.Exception

  Description copied from interface: `DataCollectionListener`
  Called before data element will be removed.

  Specified by:
    `elementWillRemove` in interface `DataCollectionListener`
  Parameters:
    `e` - DataCollectionEvent information about will removed data element.
  Throws:
    `DataCollectionVetoException` - If listener cancel removing of data element.
    `java.lang.Exception` - If error occured.

### elementRemoved

    public void elementRemoved(DataCollectionEvent e)
                        throws java.lang.Exception

  Description copied from interface: `DataCollectionListener`
  Called after data element was removed.

  Specified by:
    `elementRemoved` in interface `DataCollectionListener`
  Parameters:
    `e` - DataCollectionEvent information about removed data element.
  Throws:
    `java.lang.Exception` - If error occured.

### elementWillChange

    public void elementWillChange(DataCollectionEvent e)
                           throws DataCollectionVetoException,
                                  java.lang.Exception

  Description copied from interface: `DataCollectionListener`
  Called before data element will be changed. `e` contains old data element (which will be changed).

  Specified by:
    `elementWillChange` in interface `DataCollectionListener`
  Parameters:
    `e` - DataCollectionEvent information about will change data element.
  Throws:
    `DataCollectionVetoException` - If listener cancel changing of data element.
    `java.lang.Exception` - If error occured.

### elementChanged

    public void elementChanged(DataCollectionEvent e)
                        throws java.lang.Exception

  Description copied from interface: `DataCollectionListener`
  Called after data element was changed. `e` contains old data element (which already changed).

  Specified by:
    `elementChanged` in interface `DataCollectionListener`
  Parameters:
    `e` - DataCollectionEvent information about changed data element.
  Throws:
    `java.lang.Exception` - If error occured.

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