com.elegantj.data.dataprovider
Class DataEvent

java.lang.Object
  |
  +--java.util.EventObject
        |
        +--com.elegantj.data.dataprovider.DataEvent

All Implemented Interfaces:

java.io.Serializable

public class DataEvent

extends java.util.EventObject

The data event is generated by a data provider (such as a SqlDataProvider) when the data provider-specific action occurs (such as data inserted, deleted, updated). The event is passed to every DataListener object that registered to receive such events using the data provider's addDataListener method. The object that implements the DataListener interface gets this DataEvent when the event occurs.

See Also:

Serialized Form

Field Summary

static int	CHANGEDATA This event id indicates that data to be viewed has been changed into data provider
static int	DELETEDATA This event id indicates that data has been deleted from data provider
static int	INSERTDATA This event id indicates that data has been inserted into data provider
static int	SAVEDATA This event id indicates that data to be viewed has been saved into data provider
static int	UPDATEDATA This event id indicates that data has been updated into data provider

Fields inherited from class java.util.EventObject

source

Constructor Summary

DataEvent(java.lang.Object source, java.util.Hashtable oldValue, java.util.Hashtable newValue)
Creates a DataEvent with specified source object and data values(old and new).

Method Summary

java.util.Hashtable	getNewValue() Returns the new data value for which the event occurred.
java.util.Hashtable	getOldValue() Returns the old data value before the event occurred.
java.lang.String	toString() Returns the string representation of this EventObject

Methods inherited from class java.util.EventObject

getSource

Methods inherited from class java.lang.Object

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

Field Detail

INSERTDATA

public static final int INSERTDATA

This event id indicates that data has been inserted into data provider

See Also:

Constant Field Values

DELETEDATA

public static final int DELETEDATA

This event id indicates that data has been deleted from data provider

See Also:

Constant Field Values

UPDATEDATA

public static final int UPDATEDATA

This event id indicates that data has been updated into data provider

See Also:

Constant Field Values

CHANGEDATA

public static final int CHANGEDATA

This event id indicates that data to be viewed has been changed into data provider

See Also:

Constant Field Values

SAVEDATA

public static final int SAVEDATA

This event id indicates that data to be viewed has been saved into data provider

See Also:

Constant Field Values

Constructor Detail

DataEvent

public DataEvent(java.lang.Object source,
                 java.util.Hashtable oldValue,
                 java.util.Hashtable newValue)

Creates a DataEvent with specified source object and data values(old and new).

Parameters:

source - the object on which the Event initially occurred

oldValue - the hashtable contains the data before the event occurred

newValue - the hashtable contains the data for which the event occurred

Method Detail

getOldValue

public java.util.Hashtable getOldValue()

Returns the old data value before the event occurred.

getNewValue

public java.util.Hashtable getNewValue()

Returns the new data value for which the event occurred.

toString

public java.lang.String toString()

Returns the string representation of this EventObject

Overrides:

toString in class java.util.EventObject

Returns:

the string