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com.gopas.rt.model
Class BOListEvent  

java.lang.Object
  java.util.EventObject
      java.beans.PropertyChangeEvent
          com.gopas.rt.model.BOListEvent

All Implemented Interfaces:

java.io.Serializable

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public class BOListEvent

extends java.beans.PropertyChangeEvent

BOListEvent is used to notify listeners that a BOList has changed. The model event describes changes to a BOList Depending on the parameters used in the constructors, the BOListEvent can be used to specify the following types of changes:

 BOListEvent(source);              //  The data, ie. all rows changed 
 BOListEvent(source, HEADER_ROW);  //  Structure change
 BOListEvent(source, 1);           //  Row 1 changed
 BOListEvent(source, 3, 6);        //  Rows 3 to 6 inclusive changed
 BOListEvent(source, 2, 2, 6);     //  Cell at (2, 6) changed
 BOListEvent(source, 3, 6, INSERT); // Rows (3, 6) were inserted
 BOListEvent(source, 3, 6, DELETE); // Rows (3, 6) were deleted
 

It is possible to use other combinations of the parameters, not all of them are meaningful. By subclassing, you can add other information, for example: whether the event WILL happen or DID happen. This makes the specification of rows in DELETE events more useful but has not been included in the swing package as the JTable only needs post-event notification.

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Field Summary
static int	DELETE           Identifies the removal of rows.
protected  int	firstRow
static int	HEADER_ROW           Identifies the header row.
static int	INSERT           Identifies the addtion of new rows.
protected  int	lastRow
protected  java.lang.Object[]	removedObjects
protected  BOList	srcList
protected  int	type
static int	UPDATE           Identifies a change to existing data.

 

Fields inherited from class java.beans.PropertyChangeEvent

 

Fields inherited from class java.util.EventObject

source

 

Constructor Summary

BOListEvent(java.lang.Object source, java.lang.String propName, BOList psrcList)           All row data in the table has changed, listeners should discard any state that was based on the rows and requery the TableModel to get the new row count and all the appropriate values.

BOListEvent(java.lang.Object source, java.lang.String propName, BOList psrcList, int row)           This row of data has been updated.

BOListEvent(java.lang.Object source, java.lang.String propName, BOList psrcList, int firstRow, int lastRow)           The data in rows [firstRow, lastRow] have been updated.

BOListEvent(java.lang.Object source, java.lang.String propName, BOList psrcList, int pfirstRow, int plastRow, int ptype)           The cells from (firstRow) to (lastRow) have been changed.

BOListEvent(java.lang.Object source, java.lang.String propName, BOList psrcList, int pfirstRow, int plastRow, java.lang.Object[] premovedArr)           The cells from (firstRow) to (lastRow) have been deleted.

 

Method Summary
int	getFirstRow()           Returns the first row that changed.
int	getLastRow()           Returns the last row that changed.
java.lang.Object[]	getRemovedObjects()           Returns the removed objects.
BOList	getSrcList()           Returns the List in which the event occurred.
int	getType()           Returns the type of event - one of: INSERT, UPDATE and DELETE.
java.lang.String	toString()           Converts the event to a String.

 

Methods inherited from class java.beans.PropertyChangeEvent

getNewValue, getOldValue, getPropagationId, getPropertyName, setPropagationId

 

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

INSERT

public static final int INSERT

Identifies the addtion of new rows.

See Also:

Constant Field Values

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UPDATE

public static final int UPDATE

Identifies a change to existing data.

See Also:

Constant Field Values

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DELETE

public static final int DELETE

Identifies the removal of rows.

See Also:

Constant Field Values

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HEADER_ROW

public static final int HEADER_ROW

Identifies the header row.

See Also:

Constant Field Values

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srcList

protected final BOList srcList

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type

protected final int type

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firstRow

protected final int firstRow

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lastRow

protected final int lastRow

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removedObjects

protected final java.lang.Object[] removedObjects

Constructor Detail

BOListEvent

public BOListEvent(java.lang.Object source,
                   java.lang.String propName,
                   BOList psrcList)

All row data in the table has changed, listeners should discard any state that was based on the rows and requery the TableModel to get the new row count and all the appropriate values. The JTable will repaint the entire visible region on recieving this event, querying the model for the cell values that are visble. The structure of the table ie, the column names, types and order have not changed. (Using Integer.MAX_VALUE instead of getRowCount() in case rows were deleted.

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BOListEvent

public BOListEvent(java.lang.Object source,
                   java.lang.String propName,
                   BOList psrcList,
                   int row)

This row of data has been updated. To denote the arrival of a completely new table with a different structure use HEADER_ROW as the value for the row.

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BOListEvent

public BOListEvent(java.lang.Object source,
                   java.lang.String propName,
                   BOList psrcList,
                   int firstRow,
                   int lastRow)

The data in rows [firstRow, lastRow] have been updated.

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BOListEvent

public BOListEvent(java.lang.Object source,
                   java.lang.String propName,
                   BOList psrcList,
                   int pfirstRow,
                   int plastRow,
                   int ptype)

The cells from (firstRow) to (lastRow) have been changed.

The type should be one of: INSERT, UPDATE and DELETE.

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BOListEvent

public BOListEvent(java.lang.Object source,
                   java.lang.String propName,
                   BOList psrcList,
                   int pfirstRow,
                   int plastRow,
                   java.lang.Object[] premovedArr)

The cells from (firstRow) to (lastRow) have been deleted.

The type should be: DELETE.

Method Detail

getFirstRow

public int getFirstRow()

Returns the first row that changed. HEADER_ROW means the meta data, ie. names, types and order of the columns.

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getLastRow

public int getLastRow()

Returns the last row that changed.

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getType

public int getType()

Returns the type of event - one of: INSERT, UPDATE and DELETE.

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getSrcList

public BOList getSrcList()

Returns the List in which the event occurred.

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getRemovedObjects

public java.lang.Object[] getRemovedObjects()

Returns the removed objects.

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toString

public java.lang.String toString()

Description copied from class: java.util.EventObject

Converts the event to a String. The format is not specified, but by observation, the JDK uses: getClass().getName() + "[source=" + source + "]";.

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