Package ej.event

Class EventQueueException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

ej.event.EventQueueException

All Implemented Interfaces:

java.io.Serializable

public class EventQueueException
extends java.lang.RuntimeException

Thrown to indicate that a method has caused an internal EventQueue error. This error is specified by an identifier

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static int	DATA_EXCEED_24_BIT	Error code -3: thrown when the data value exceeds 24 bits.
static int	DEFAULT_LISTENER_NULL	Error code -6: thrown when attempting to set the default listener to null.
static int	FIFO_IS_FULL	Error code -2: thrown when the FIFO buffer is full.
static int	INVALID_TYPE_MUST_BE_BETWEEN_0_AND_127	Error code -1: thrown when an invalid event type is provided.
static int	MAXIMUM_REGISTERED_EVENTS_REACHED	Error code -4: thrown when the maximum number of event types has already been registered.
static int	NO_LISTENER_REGISTERED	Error code -5: thrown when no listener is registered for the specified event type.
static int	NOT_ENOUGH_BYTES_REMAINING	Error code -7: thrown if there is not enough bytes remaining in the extended event.

Method Summary

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

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

Field Detail

INVALID_TYPE_MUST_BE_BETWEEN_0_AND_127

public static final int INVALID_TYPE_MUST_BE_BETWEEN_0_AND_127

Error code -1: thrown when an invalid event type is provided.

This occurs if the event type is lower than 0 or greater than 127

Typically thrown by EventQueue.offerEvent(int, int) or EventQueue.offerExtendedEvent(int type, byte[]).

See Also:

Constant Field Values

FIFO_IS_FULL

public static final int FIFO_IS_FULL

Error code -2: thrown when the FIFO buffer is full.

Indicates that the queue cannot accept any new events until previously queued events are processed.

See Also:

Constant Field Values

DATA_EXCEED_24_BIT

public static final int DATA_EXCEED_24_BIT

Error code -3: thrown when the data value exceeds 24 bits.

This can occur when using EventQueue.offerEvent(int, int) with an data that cannot be represented within 24 bits, or when calling EventQueue.offerExtendedEvent(int, byte[]) with a data buffer whose length exceeds 24 bits.

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Constant Field Values

MAXIMUM_REGISTERED_EVENTS_REACHED

public static final int MAXIMUM_REGISTERED_EVENTS_REACHED

Error code -4: thrown when the maximum number of event types has already been registered.

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Constant Field Values

NO_LISTENER_REGISTERED

public static final int NO_LISTENER_REGISTERED

Error code -5: thrown when no listener is registered for the specified event type.

This occurs when an event is offered with a type value that does not correspond to any registered listener.

See Also:

EventQueue.registerListener(ej.event.EventQueueListener), EventQueue.unregisterListener(int), Constant Field Values

DEFAULT_LISTENER_NULL

public static final int DEFAULT_LISTENER_NULL

Error code -6: thrown when attempting to set the default listener to null.

This occurs when calling EventQueue.setDefaultListener(ej.event.EventQueueListener) with a null reference. The default listener is required to handle events that do not correspond to any registered listener type.

See Also:

EventQueue.setDefaultListener(ej.event.EventQueueListener), Constant Field Values

NOT_ENOUGH_BYTES_REMAINING

public static final int NOT_ENOUGH_BYTES_REMAINING

Error code -7: thrown if there is not enough bytes remaining in the extended event.

This occurs when calling EventQueueDataReader.readFully(byte[])

See Also:

Constant Field Values