Inheritance diagram for com.latencybusters.lbm.LBMHotFailoverReceiver:

Public Member Functions
	LBMHotFailoverReceiver (LBMContext lbmctx, LBMTopic lbmtopic, LBMReceiverCallback cb, Object cbArg) throws LBMException

	LBMHotFailoverReceiver (LBMContext lbmctx, LBMTopic lbmtopic, LBMReceiverCallback cb, Object cbArg, LBMEventQueue lbmevq) throws LBMException

void	subscribeChannel (long channelNumber, LBMReceiverCallback cb, Object cbArg) throws LBMException

void	unsubscribeChannel (long channelNumber) throws LBMException

String	getAttributeValue (String attributeName) throws LBMException

void	setAttributeValue (String attributeName, String attributeValue) throws LBMException

LBMConfigOption[]	dumpAttributeList ()

Object	setProperty (String attributeName, String attributeValue)

void	load (InputStream inStream) throws IOException

LBMReceiverStatistics	getStatistics (String source) throws LBMException

LBMReceiverStatistics	getStatistics (int maxStats) throws LBMException

void	resetStatistics (String source) throws LBMException

void	resetStatistics () throws LBMException

final void	close () throws LBMException

int	receiverCount ()

void	addReceiver (LBMReceiverCallback cb)

void	addReceiver (LBMReceiverCallback cb, Object cbArg)

void	removeReceiver (LBMReceiverCallback cb)

void	removeReceiver (LBMReceiverCallback cb, Object cbArg)

void	setSourceClientObject (String source, Object newClientObject) throws LBMEInvalException

void	umederegister () throws LBMException

void	umewrcvderegister () throws LBMException

void	deregister () throws LBMException

void	deregister (String queue) throws LBMException

void	indexStopAssignment (String queue) throws LBMException

void	indexStartAssignment (String queue) throws LBMException

void	indexRelease (String queue, UMQIndexInfo index) throws LBMException

List< LBMMessage >	browseQueueMessages (String queue, int max, long timeoutMS) throws LBMException

void	queueMessageList (String queue, LBMAsyncOperationCallback asyncOpCb) throws LBMException

void	queueMessageList (String queue, LBMAsyncOperationCallback asyncOpCb, Object cbArg) throws LBMException

void	queueMessageList (String queue, LBMAsyncOperationCallback asyncOpCb, Object cbArg, String msgSelector) throws LBMException

void	queueMessageRetrieve (String queue, List< UMQMessageId > messageIDs, LBMAsyncOperationCallback asyncOpCb) throws LBMException

void	queueMessageRetrieve (String queue, List< UMQMessageId > messageIDs, LBMAsyncOperationCallback asyncOpCb, Object cbArg) throws LBMException

Protected Member Functions
	LBMHotFailoverReceiver (LBMContext lbmctx, LBMTopic lbmtopic) throws LBMException

	LBMHotFailoverReceiver (LBMContext lbmctx, LBMTopic lbmtopic, LBMEventQueue lbmevq) throws LBMException

void	finalize () throws LBMException

int	onReceive (LBMMessage lbmmsg)

int	onChannelReceive (LBMMessage lbmmsg, LBMReceiverCallback cb, Object cbArg)

Detailed Description

LBM Hot-Failover Receiver class. This class can be subclassed in order to override the default onReceive() method used to deliver received data or an LBMReceiverCallback interface may be specified for handling the received message callback.

Warning: It is not safe to instantiate this class from a context thread callback.

Constructor & Destructor Documentation

com.latencybusters.lbm.LBMHotFailoverReceiver.LBMHotFailoverReceiver	(	LBMContext	lbmctx,
		LBMTopic	lbmtopic
	)		throws LBMException

protected

Instantiate an LBM Hot-Failover Receiver object associated with a given context and topic. ATTENTION: An application must have at least one receiver callback registered per receiver object. Use of this constructor in a class that does not override the onReceive method creates a window after receiver creation and before adding a callback in which messages may be lost. Using this constructor in a class that overrides the onReceive method yields the best performance, and is recommended. If multiple callbacks support is needed, or if overriding the onReceive method is not desirable, use a constructor that specifies at least one initial callback. Warning: It is not safe to call this constructor from a context thread callback.

Parameters

lbmctx	Context with which to associate the receiver.
lbmtopic	LBMTopic used to initialize the receiver.

Exceptions

LBMException if any error occurs creating the hot failover receiver.

com.latencybusters.lbm.LBMHotFailoverReceiver.LBMHotFailoverReceiver	(	LBMContext	lbmctx,
		LBMTopic	lbmtopic,
		LBMEventQueue	lbmevq
	)		throws LBMException

protected

Instantiate an LBM Hot-Failover Receiver object associated with a given context, topic, and event queue. ATTENTION: An application must have at least one receiver callback registered per receiver object. Use of this constructor in a class that does not override the onReceive method creates a window after receiver creation and before adding a callback in which messages may be lost. Using this constructor in a class that overrides the onReceive method yields the best performance, and is recommended. If multiple callbacks support is needed, or if overriding the onReceive method is not desirable, use a constructor that specifies at least one initial callback. Warning: It is not safe to call this constructor from a context thread callback.

Parameters

lbmctx	Context with which to associate the receiver.
lbmtopic	LBMTopic used to initialize the receiver.
lbmevq	Event queue with which to associate the receiver (all receiver events will be posted to this event queue).

Exceptions

LBMException if any error occurs creating the hot failover receiver.

com.latencybusters.lbm.LBMHotFailoverReceiver.LBMHotFailoverReceiver	(	LBMContext	lbmctx,
		LBMTopic	lbmtopic,
		LBMReceiverCallback	cb,
		Object	cbArg
	)		throws LBMException

Instantiate an LBM Hot-Failover Receiver object associated with a given context and topic. Warning: It is not safe to call this constructor from a context thread callback.

Parameters

lbmctx	Context with which to associate the receiver.
lbmtopic	LBMTopic used to initialize the receiver.
cb	An object implementing the LBMReceiverCallback interface
cbArg	Callback object passed as token to callback interface

Exceptions

LBMException if any error occurs creating the hot failover receiver.

com.latencybusters.lbm.LBMHotFailoverReceiver.LBMHotFailoverReceiver	(	LBMContext	lbmctx,
		LBMTopic	lbmtopic,
		LBMReceiverCallback	cb,
		Object	cbArg,
		LBMEventQueue	lbmevq
	)		throws LBMException

Instantiate an LBM Hot-Failover Receiver object associated with a given context, topic, and event queue. Warning: It is not safe to call this constructor from a context thread callback.

Parameters

lbmctx	Context with which to associate the receiver.
lbmtopic	LBMTopic used to initialize the receiver.
cb	An object implementing the LBMReceiverCallback interface
cbArg	Callback object passed as token to callback interface
lbmevq	Event queue with which to associate the receiver (all receiver events will be posted to this event queue).

Exceptions

LBMException if any error occurs creating the hot failover receiver.

References com.latencybusters.lbm.LBM.EINVAL.

Member Function Documentation

void com.latencybusters.lbm.LBMReceiverBase.addReceiver ( LBMReceiverCallback cb )

inherited

Register a receiver callback

Parameters

cb	Object implementing the LBMReceiverCallback interface

See also: LBMReceiverCallback; LBMReceiverBase::removeReceiver(LBMReceiverCallback)

void com.latencybusters.lbm.LBMReceiverBase.addReceiver	(	LBMReceiverCallback	cb,
		Object	cbArg
	)

inherited

Register a receiver callback (and callback token)

Parameters

cb	Object implementing the LBMReceiverCallback interface
cbArg	Callback token object

See also: LBMReceiverCallback; LBMReceiverBase::removeReceiver(LBMReceiverCallback)

List<LBMMessage> com.latencybusters.lbm.LBMReceiverBase.browseQueueMessages	(	String	queue,
		int	max,
		long	timeoutMS
	)		throws LBMException

inherited

Not currently supported. When implemented, it will browse messages on the given UMQ queue.

Parameters

queue	Name of the queue at which to browse.
max	The max number of messages to return
timeoutMS	Timeout

Exceptions

LBMException if any error occurs.

final void com.latencybusters.lbm.LBMReceiverBase.close ( ) throws LBMException

inherited

Close this receiver.

Warning: It is not safe to call this method from a context thread callback.

void com.latencybusters.lbm.LBMReceiverBase.deregister ( ) throws LBMException

inherited

Deregister from all UMQ queues.

Exceptions

LBMEOPException if an error occurs while attempting to deregister.

void com.latencybusters.lbm.LBMReceiverBase.deregister ( String queue ) throws LBMException

inherited

Deregister from a queue.

Parameters

queue The name of the queue to deregister from.

Exceptions

LBMEOPException if an error occurs while attempting to deregister.

LBMConfigOption [] com.latencybusters.lbm.LBMReceiver.dumpAttributeList ( )

inherited

Returns an array of LBMConfigOptions

Returns: Array of LBMConfigOption

void com.latencybusters.lbm.LBMHotFailoverReceiver.finalize ( ) throws LBMException

protected

This method is for internal use only, and is not supported for customer applications.

String com.latencybusters.lbm.LBMHotFailoverReceiver.getAttributeValue ( String attributeName ) throws LBMException

Returns the value of a receiver-related attribute for this receiver.

Parameters

attributeName Name of the attribute to retrieve

Returns: Value corresponding to the specified attribute name

Exceptions

LBMException if attributeName is not a valid attribute.

LBMReceiverStatistics com.latencybusters.lbm.LBMReceiver.getStatistics ( String source ) throws LBMException

inherited

Return the current set of receiver transport statistics for a particular source.

Parameters

source Source string (as returned by LBMMesage source()) that specifies the set of statistics to return.

Returns: LBMReceiverStatistics object containing the statistics corresponding to the specified source.

Exceptions

LBMException if any error occurred retrieving receiver statistics.

References com.latencybusters.lbm.LBMReceiverStatistics.refresh().

LBMReceiverStatistics com.latencybusters.lbm.LBMReceiver.getStatistics ( int maxStats ) throws LBMException

inherited

Return the current set of receiver transport statistics for all sources.

Parameters

maxStats Maximum number of sources

Returns: LBMReceiverStatistics object containing the statistics corresponding to the specified number of sources

Exceptions

LBMException if any error occurred retrieving receiver statistics.

References com.latencybusters.lbm.LBMReceiverStatistics.refresh().

void com.latencybusters.lbm.LBMReceiverBase.indexRelease	(	String	queue,
		UMQIndexInfo	index
	)		throws LBMException

inherited

Instruct the given UMQ queue(s) to release the given UMQ index that is assigned to the given receiver.

Parameters

queue	Name of the queue at which to release the index, or null for all queues.
index	The index to release, or null for all indices.

Exceptions

LBMException if any error occurs.

Since: UMQ 1.2

void com.latencybusters.lbm.LBMReceiverBase.indexStartAssignment ( String queue ) throws LBMException

inherited

Starts this receiver's eligibility for new index assignments from a queue.

Parameters

queue The name of the queue to start new index assignment from, or null for all queues.

Exceptions

LBMException if an error occurs while attempting to start index assignment.

Since: UMQ 1.2

void com.latencybusters.lbm.LBMReceiverBase.indexStopAssignment ( String queue ) throws LBMException

inherited

Stops this receiver's eligibility for new index assignments from a queue.

Parameters

queue The name of the queue to stop new index assignment from, or null for all queues.

Exceptions

LBMException if an error occurs while attempting to stop index assignment.

Since: UMQ 1.2

void com.latencybusters.lbm.LBMReceiver.load ( InputStream inStream ) throws IOException

inherited

Reads a property (attribute) list (key and element pairs) from the input stream.

Parameters

inStream Input stream of bytes

Exceptions

IOException	if any I/O error occurs.
LBMRuntimeException	if any invalid attribute is detected in `inStream`.

References com.latencybusters.lbm.LBMReceiver.setProperty().

int com.latencybusters.lbm.LBMReceiverBase.onReceive ( LBMMessage lbmmsg )

protectedinherited

Default received message callback. This method may be overridden by subclassing the LBMReceiverBase class (or one of the classes derived from LBMReceiverBase). Alternatively, a callback may be registered (deregistered) using the addReceiver() (removeReceiver()) methods.

Parameters

lbmmsg LBMMessage object containing the received data

See also: LBMReceiverBase::addReceiver(LBMReceiverCallback); LBMReceiverBase::removeReceiver(LBMReceiverCallback)

void com.latencybusters.lbm.LBMReceiverBase.queueMessageList	(	String	queue,
		LBMAsyncOperationCallback	asyncOpCb
	)		throws LBMException

inherited

Returns a list of currently-enqueued messages from the specified queue (which the receiver must be registered with).

Deprecated:

Parameters

queue	Name of the queue to retrieve the list of messages from.
asyncOpCb	Object implementing the LBMAsyncOperationCallback interface that will receive updates and results for the asynchronous operation.

Exceptions

LBMException if queue or asyncObCb parameters are invalid, or if an error occurs.

void com.latencybusters.lbm.LBMReceiverBase.queueMessageList	(	String	queue,
		LBMAsyncOperationCallback	asyncOpCb,
		Object	cbArg
	)		throws LBMException

inherited

Returns a list of currently-enqueued messages from the specified queue (which the receiver must be registered with).

Deprecated:

Parameters

queue	Name of the queue to retrieve the list of messages from.
asyncOpCb	Object implementing the LBMAsyncOperationCallback interface that will receive updates and results for the asynchronous operation.
cbArg	User-supplied callback object which will be passed back when asyncOpCb's onAsyncOperation method is called.

Exceptions

LBMException if queue or asyncObCb parameters are invalid, or if an error occurs.

void com.latencybusters.lbm.LBMReceiverBase.queueMessageList	(	String	queue,
		LBMAsyncOperationCallback	asyncOpCb,
		Object	cbArg,
		String	msgSelector
	)		throws LBMException

inherited

Returns a list of currently-enqueued messages from the specified queue (which the receiver must be registered with).

Deprecated:

Parameters

queue	Name of the queue to retrieve the list of messages from.
asyncOpCb	Object implementing the LBMAsyncOperationCallback interface that will receive updates and results for the asynchronous operation.
cbArg	User-supplied callback object which will be passed back when asyncOpCb's onAsyncOperation method is called.
msgSelector	User-supplied message selector string.

Exceptions

LBMException if queue or asyncObCb parameters are invalid, or if an error occurs.

void com.latencybusters.lbm.LBMReceiverBase.queueMessageRetrieve	(	String	queue,
		List< UMQMessageId >	messageIDs,
		LBMAsyncOperationCallback	asyncOpCb
	)		throws LBMException

inherited

Retrieves the given list of UMQ messages (specified by UMQMessageId) and their associated status information from the specified queue.

Deprecated:

Parameters

queue	Name of the queue to retrieve the messages from.
messageIDs	A list of the UMQ message IDs of the messages desired.
asyncOpCb	Object implementing the LBMAsyncOperationCallback interface that will receive updates and results for the asynchronous operation.

Exceptions

LBMException if queue, asyncObCb, or messageIDs parameters are invalid, or if an error occurs.

void com.latencybusters.lbm.LBMReceiverBase.queueMessageRetrieve	(	String	queue,
		List< UMQMessageId >	messageIDs,
		LBMAsyncOperationCallback	asyncOpCb,
		Object	cbArg
	)		throws LBMException

inherited

Retrieves the given list of UMQ messages (specified by UMQMessageId) and their associated status information from the specified queue.

Deprecated:

Parameters

queue	Name of the queue to retrieve the messages from.
messageIDs	A list of the UMQ message IDs of the messages desired.
asyncOpCb	Object implementing the LBMAsyncOperationCallback interface that will receive updates and results for the asynchronous operation.
cbArg	User-supplied callback object which will be passed back when asyncOpCb's onAsyncOperation method is called.

Exceptions

LBMException if queue, asyncObCb, or messageIDs parameters are invalid, or if an error occurs.

int com.latencybusters.lbm.LBMReceiverBase.receiverCount ( )

inherited

Returns the number of receiver callbacks registered to this receiver

void com.latencybusters.lbm.LBMReceiverBase.removeReceiver ( LBMReceiverCallback cb )

inherited

Deregister a receiver callback

Parameters

cb	Previously registered object implementing the LBMReceiverCallback interface

See also: LBMReceiverCallback; LBMReceiverBase::addReceiver(LBMReceiverCallback)

void com.latencybusters.lbm.LBMReceiverBase.removeReceiver	(	LBMReceiverCallback	cb,
		Object	cbArg
	)

inherited

Deregister a receiver callback (and callback token)

Parameters

cb	Previously registered object implementing the LBMReceiverCallback interface
cbArg	Callback token for previously registered object

See also: LBMReceiverCallback; LBMReceiverBase::addReceiver(LBMReceiverCallback)

void com.latencybusters.lbm.LBMReceiver.resetStatistics ( String source ) throws LBMException

inherited

Reset the receiver transport statistics for a particular source.

Parameters

source The string version of the source to reset statistics for.

Exceptions

LBMException if any error occurred resetting statistics.

void com.latencybusters.lbm.LBMReceiver.resetStatistics ( ) throws LBMException

inherited

Reset the receiver transport statistics for all sources.

Exceptions

LBMException if any error occurred resetting statistics.

void com.latencybusters.lbm.LBMHotFailoverReceiver.setAttributeValue	(	String	attributeName,
		String	attributeValue
	)		throws LBMException

Set the value of a receiver-related attribute for this receiver. Note that this method bypasses the property list. As such no attributes configured using this method will appear in the property list.

Parameters

attributeName	Name of the attribute to set
attributeValue	New attribute value

Exceptions

LBMException if attributeName is not a valid attribute, or attributeValue is not a valid value for attributeName.

See also: setProperty

Object com.latencybusters.lbm.LBMReceiver.setProperty	(	String	attributeName,
		String	attributeValue
	)

inherited

Set the value of a receiver-related attribute for this receiver.

Parameters

attributeName	Name of the attribute to set
attributeValue	New attribute value

Exceptions

LBMRuntimeException if attributeName is not a valid attribute, or attributeValue is not a valid value for attributeName.

References com.latencybusters.lbm.LBMReceiver.setAttributeValue().

Referenced by com.latencybusters.lbm.LBMReceiver.load().

void com.latencybusters.lbm.LBMReceiverBase.setSourceClientObject	(	String	source,
		Object	newClientObject
	)		throws LBMEInvalException

inherited

Set (or change) this receiver's per-source client object for the source with source string matching "source".

Parameters

source	Source string of source to look for.
newClientObject	The new per-source client object to use with this source.

Exceptions

LBMEInvalException if the source was not found.

void com.latencybusters.lbm.LBMHotFailoverReceiver.subscribeChannel	(	long	channelNumber,
		LBMReceiverCallback	cb,
		Object	cbArg
	)		throws LBMException

Subscribe to a given channel

void com.latencybusters.lbm.LBMReceiverBase.umederegister ( ) throws LBMException

inherited

Deregister from all UME Store.

Exceptions

LBMEOPException if an error occurs while attempting to deregister.

void com.latencybusters.lbm.LBMReceiverBase.umewrcvderegister ( ) throws LBMException

inherited

Deregister Wildcard receiver from all UME Store.

Exceptions

LBMEOPException if an error occurs while attempting to deregister.

void com.latencybusters.lbm.LBMHotFailoverReceiver.unsubscribeChannel ( long channelNumber ) throws LBMException

Cancel an existing subscription

The documentation for this class was generated from the following file:

LBMHotFailoverReceiver.java

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation