javax.comm
Class SerialPortEvent

java.lang.Object
  java.util.EventObject
      javax.comm.SerialPortEvent

All Implemented Interfaces:

java.io.Serializable

public class SerialPortEvent

extends java.util.EventObject

A serial port event.

Author:

Jagane Sundar

See Also:

SerialPort, SerialPortEventListener, EventObject, Serialized Form

Field Summary

static int	BI Break interrupt.
static int	CD Carrier detect.
static int	CTS Clear to send.
static int	DATA_AVAILABLE Data available at the serial port.
static int	DSR Data set ready.
int	eventType Deprecated. Replaced by getEventType method.
static int	FE Framing error.
static int	OE Overrun error.
static int	OUTPUT_BUFFER_EMPTY Output buffer is empty.
static int	PE Parity error.
static int	RI Ring indicator.

Fields inherited from class java.util.EventObject

source

Constructor Summary

SerialPortEvent(SerialPort srcport, int eventtype, boolean oldvalue, boolean newvalue)
Constructs a SerialPortEvent with the specified serial port, event type, old and new values.

Method Summary

int	getEventType() Gets the type of this event.
boolean	getNewValue() Gets the new value of the state change that caused the SerialPortEvent to be propagated.
boolean	getOldValue() Gets the old value of the state change that caused the SerialPortEvent to be propagated.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Field Detail

eventType

public int eventType

Deprecated. Replaced by getEventType method.

The type of event.

DATA_AVAILABLE

public static final int DATA_AVAILABLE

Data available at the serial port. This event will be generated once when new data arrive at the serial port. Even if the user doesn't read the data, it won't be generated again until next time new data arrive.

See Also:

Constant Field Values

OUTPUT_BUFFER_EMPTY

public static final int OUTPUT_BUFFER_EMPTY

Output buffer is empty. The event will be generated after a write is completed, when the system buffer becomes empty again.

See Also:

Constant Field Values

CTS

public static final int CTS

Clear to send.

See Also:

Constant Field Values

DSR

public static final int DSR

Data set ready.

See Also:

Constant Field Values

RI

public static final int RI

Ring indicator.

See Also:

Constant Field Values

CD

public static final int CD

Carrier detect.

See Also:

Constant Field Values

OE

public static final int OE

Overrun error.

See Also:

Constant Field Values

PE

public static final int PE

Parity error.

See Also:

Constant Field Values

FE

public static final int FE

Framing error.

See Also:

Constant Field Values

BI

public static final int BI

Break interrupt.

See Also:

Constant Field Values

Constructor Detail

SerialPortEvent

public SerialPortEvent(SerialPort srcport,
                       int eventtype,
                       boolean oldvalue,
                       boolean newvalue)

Constructs a SerialPortEvent with the specified serial port, event type, old and new values. Application programs should not directly create SerialPortEvent objects.

Parameters:

srcport - source parallel port

eventtype - event type

oldvalue - old value

newvalue - new value

Method Detail

getEventType

public int getEventType()

Gets the type of this event.

Returns:

integer that can be equal to one of the following static variables: BI, CD, CTS, DATA_AVAILABLE, DSR, FE, OE, OUTPUT_BUFFER_EMPTY, PE or RI.

Since:

CommAPI 1.1

getNewValue

public boolean getNewValue()

Gets the new value of the state change that caused the SerialPortEvent to be propagated. For example, when the CD bit changes, newValue reflects the new value of the CD bit.

getOldValue

public boolean getOldValue()

Gets the old value of the state change that caused the SerialPortEvent to be propagated. For example, when the CD bit changes, oldValue reflects the old value of the CD bit.