Package com.portal.bas

Class PViewDataChangeEvent

java.lang.Object

java.util.EventObject

java.awt.AWTEvent

com.portal.bas.PViewDataChangeEvent

All Implemented Interfaces:

Serializable

public class PViewDataChangeEvent
extends AWTEvent
implements Serializable

PViewDataChangeEvent is the mechanism by which a controller tells a view that it needs to display new data, and what that data is.

Version:

5

Author:

Larry Lynch-Freshner

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final int	ADD_BEFORE	A constant that indicates the new data needs to be inserted before the existing data.
static final int	REPLACE	A constant that indicates the current data needs to be replaced with the new data.

Fields inherited from class java.awt.AWTEvent

ACTION_EVENT_MASK, ADJUSTMENT_EVENT_MASK, COMPONENT_EVENT_MASK, consumed, CONTAINER_EVENT_MASK, FOCUS_EVENT_MASK, HIERARCHY_BOUNDS_EVENT_MASK, HIERARCHY_EVENT_MASK, id, INPUT_METHOD_EVENT_MASK, INVOCATION_EVENT_MASK, ITEM_EVENT_MASK, KEY_EVENT_MASK, MOUSE_EVENT_MASK, MOUSE_MOTION_EVENT_MASK, MOUSE_WHEEL_EVENT_MASK, PAINT_EVENT_MASK, RESERVED_ID_MAX, TEXT_EVENT_MASK, WINDOW_EVENT_MASK, WINDOW_FOCUS_EVENT_MASK, WINDOW_STATE_EVENT_MASK

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
PViewDataChangeEvent(Object src, String dataObjName, int doWhat, int index, Object data)	Creates an instance of PViewDataChangeEvent that determines whether new data should replace or be inserted before the old data that is at the specified index.
PViewDataChangeEvent(Object src, String dataObjName, int index, Object data)	Creates an instance of PViewDataChangeEvent that replaces old indexed data with new data, beginning at the specified location.
PViewDataChangeEvent(Object src, String dataObjName, Object data)	Creates an instance of PViewDataChangeEvent that replaces old data with the data.

Method Summary

Modifier and Type	Method	Description
Object	getData()	Gets the data.
String	getDataName()	Gets the name of the data.
int	getHowChanged()	Gets the value that tells how the data has changed.
int	getIndex()	Gets the data's index value.
boolean	isIndexed()	Tests to determine whether the data uses an index.

Methods inherited from class java.awt.AWTEvent

consume, getID, isConsumed, paramString, setSource, toString

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 Details

REPLACE

public static final int REPLACE

A constant that indicates the current data needs to be replaced with the new data.

See Also:

• Constant Field Values

ADD_BEFORE

public static final int ADD_BEFORE

A constant that indicates the new data needs to be inserted before the existing data.

See Also:

• Constant Field Values

Constructor Details

PViewDataChangeEvent

public PViewDataChangeEvent(Object src,
 String dataObjName,
 Object data)

Creates an instance of PViewDataChangeEvent that replaces old data with the data.

Parameters:

src - the event source

dataObjName - the name of data that has changed

data - the new data

PViewDataChangeEvent

public PViewDataChangeEvent(Object src,
 String dataObjName,
 int index,
 Object data)

Creates an instance of PViewDataChangeEvent that replaces old indexed data with new data, beginning at the specified location.

Parameters:

src - the event source

dataObjName - the name of data that has changed

index - the index of the data

data - the new data

PViewDataChangeEvent

public PViewDataChangeEvent(Object src,
 String dataObjName,
 int doWhat,
 int index,
 Object data)

Creates an instance of PViewDataChangeEvent that determines whether new data should replace or be inserted before the old data that is at the specified index.

Parameters:

src - the event source

dataObjName - the name of data that has changed

doWhat - how to change data in the view

index - the index of the data

data - the new data

Method Details

isIndexed

public boolean isIndexed()

Tests to determine whether the data uses an index.

Returns:

True if an index is used; false otherwise.

getHowChanged

public int getHowChanged()

Gets the value that tells how the data has changed.

Returns:

A value that indicates whether the new data replaces the old or should be inserted before it.

getIndex

public int getIndex()

Gets the data's index value.

Returns:

The index for the data.

getDataName

public String getDataName()

Gets the name of the data.

Returns:

A String with the name of the data.

getData

public Object getData()

Gets the data.

Returns:

The data.