Package oracle.integration.platform.blocks.event.jms2

Class EdnAqConnection

java.lang.Object

oracle.integration.platform.blocks.event.jms2.BaseEdnConnection

oracle.integration.platform.blocks.event.jms2.EdnAqConnection

All Implemented Interfaces:

BusinessEventConnection, EdnConnection

public final class EdnAqConnection
extends BaseEdnConnection

This class represents an EdnConnection implementation based on mid-tier JDBC API that interacts with a set of PL/SQL procedures for AQ-JMS. This is useful for migratability of FA, for example, without any configuration changes or new parameters introduced.

Since:

12.1.2

Constructor Summary

Constructors

Constructor	Description
EdnAqConnection(DataSource xaDataSource, DataSource localTxDataSource, UserTransaction userTransaction)	Construct a remote JMS Connection to EDN.

Method Summary

Modifier and Type	Method	Description
void	close()	Close the connection
UserTransaction	getUserTransaction()	Get UserTranasction instance for XA.
void	publishEvent(BusinessEvent event)	Publish an event with default persistent, priority, time to live, and EDL as input source.
void	publishEvent(BusinessEvent event, boolean persistent, int priority, long timeToLive, String edlURI)	Publish an event with specified delivery mode, priority, time to live, and EDL URI.
void	publishEvent(BusinessEvent event, int priority)	Publish an event with indicated priority
void	setUserTransaction(UserTransaction userTransaction)	Set UserTranasction instance for XA.
void	subscribe(QName eventName, String durableSubscriptionName)	Subscribe to events with specified event name (QName) and default consistency level, XPath filter (if a default one exists), timeout, and event handler that consumes subscribed events.
void	subscribe(QName eventName, ConsistencyLevel qos, XPathFilter filter, BusinessEventHandler handler, boolean runAsPublisher, long timeout, String durableSubscriptionName)	Subscribe to events with specified event name (QName), consistency level, XPath filter, and event handler that consumes subscribed events.
void	unsubscribe(QName eventName, String durableSubscriptionName)	Remove a durable subscription that has been created previously.

Methods inherited from class oracle.integration.platform.blocks.event.jms2.BaseEdnConnection

getConsistencyLevel, getContextProvider, getEDL, getEDN, getEventHandler, getEventToJmsMapping, getPriority, getTimeout, getTimeToLive, getXPathFilter, isPersistent, isRunAsPublisher, setConsistencyLevel, setContextProvider, setEDL, setEDN, setEventHandler, setEventToJmsMapping, setPersistent, setPriority, setRunAsPublisher, setTimeout, setTimeToLive, setXPathFilter

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

EdnAqConnection

public EdnAqConnection(DataSource xaDataSource,
 DataSource localTxDataSource,
 UserTransaction userTransaction)

Construct a remote JMS Connection to EDN.

Parameters:

xaDataSource - - XA data source

localTxDataSource - - Local transaction data source

userTransaction - - UserTransaction object

Method Details

getUserTransaction

public UserTransaction getUserTransaction()

Get UserTranasction instance for XA.

Returns:

UserTranasction instance for XA.

setUserTransaction

public void setUserTransaction(UserTransaction userTransaction)

Set UserTranasction instance for XA.

Parameters:

userTransaction - - UserTranasction instance for XA.

close

public void close()
           throws oracle.fabric.common.FabricException

Description copied from interface: BusinessEventConnection

Close the connection

Specified by:

close in interface BusinessEventConnection

Overrides:

close in class BaseEdnConnection

Throws:

oracle.fabric.common.FabricException - if fabric exception occurs

publishEvent

public void publishEvent(BusinessEvent event)
                  throws oracle.fabric.common.FabricException

Description copied from interface: EdnConnection

Publish an event with default persistent, priority, time to live, and EDL as input source.

Specified by:

publishEvent in interface EdnConnection

Overrides:

publishEvent in class BaseEdnConnection

Parameters:

event - Business Event to be published

Throws:

oracle.fabric.common.FabricException - If it fails to publish the event with default options.

publishEvent

public void publishEvent(BusinessEvent event,
 int priority)
                  throws oracle.fabric.common.FabricException

Description copied from interface: BusinessEventConnection

Publish an event with indicated priority

Specified by:

publishEvent in interface BusinessEventConnection

Overrides:

publishEvent in class BaseEdnConnection

Parameters:

event - - Business Event to be published

priority - - event priority

Throws:

oracle.fabric.common.FabricException - if fabric exception occurs

publishEvent

public void publishEvent(BusinessEvent event,
 boolean persistent,
 int priority,
 long timeToLive,
 String edlURI)
                  throws oracle.fabric.common.FabricException

Description copied from interface: EdnConnection

Publish an event with specified delivery mode, priority, time to live, and EDL URI.

Specified by:

publishEvent in interface EdnConnection

Overrides:

publishEvent in class BaseEdnConnection

Parameters:

event - Business Event to be published

persistent - Persistent (or non persistent) delivery mode

priority - Event priority

timeToLive - Time to live in milliseconds

edlURI - URI with "oramds" referencing Event definition content

Throws:

oracle.fabric.common.FabricException - If it fails to publish the event with specified options.

unsubscribe

public void unsubscribe(QName eventName,
 String durableSubscriptionName)
                 throws oracle.fabric.common.FabricException

Description copied from interface: EdnConnection

Remove a durable subscription that has been created previously.

Specified by:

unsubscribe in interface EdnConnection

Overrides:

unsubscribe in class BaseEdnConnection

Parameters:

eventName - Event QName to unsubscribe to

durableSubscriptionName - Durable subscription name whose subscription is to be removed.

Throws:

oracle.fabric.common.FabricException - if it fails to remove the durable subscription due to some internal error, or the subscription name is invalid.

subscribe

public void subscribe(QName eventName,
 String durableSubscriptionName)
               throws oracle.fabric.common.FabricException

Description copied from interface: EdnConnection

Subscribe to events with specified event name (QName) and default consistency level, XPath filter (if a default one exists), timeout, and event handler that consumes subscribed events.

Whether or not the subscription is durable depends on if the durableSubscriptionName is specified. Passing null or empty string as durableSubscriptionName indicates non-durable subscription.

If durableSubscriptionName is specified, it first creates a durable subscription if the subscription has not been created previously. Then it attempts to receive an event.

Note that the event receiving call blocks until an event arrives, or the timeout expires, or the connection is closed. A timeout value of 0 never expires, and the receive call blocks indefinitely. A negative timeout value means to receive the next event if one is immediately available without blocking.

Specified by:

subscribe in interface EdnConnection

Overrides:

subscribe in class BaseEdnConnection

Parameters:

eventName - Event QName to subscribe to

durableSubscriptionName - Durable subscription name.

Throws:

oracle.fabric.common.FabricException - If it fails to subscribe to events with specified options.

subscribe

public void subscribe(QName eventName,
 ConsistencyLevel qos,
 XPathFilter filter,
 BusinessEventHandler handler,
 boolean runAsPublisher,
 long timeout,
 String durableSubscriptionName)
               throws oracle.fabric.common.FabricException

Description copied from interface: EdnConnection

Subscribe to events with specified event name (QName), consistency level, XPath filter, and event handler that consumes subscribed events.

Whether or not the subscription is durable depends on if the durableSubscriptionName is specified. Passing null or empty string as durableSubscriptionName indicates non-durable subscription.

If durableSubscriptionName is specified, it first creates a durable subscription if the subscription has not been created previously. Then it attempts to receive an event.

Note that the event receiving call blocks until an event arrives, or the timeout expires, or the connection is closed. A timeout value of 0 never expires, and the receive call blocks indefinitely. A negative timeout value means to receive the next event if one is immediately available without blocking.

Specified by:

subscribe in interface EdnConnection

Overrides:

subscribe in class BaseEdnConnection

Parameters:

eventName - Event QName to subscribe to

qos - Delivery guarantee, either ConsistencyLevel.ONE_AND_ONLY_ONE or ConsistencyLevel.GUARANTEED_DELIVERY

filter - XPath filter to limit events. This filter is convertible into JMS message selector to apply on events

handler - Event handler to consume subscribed events.

runAsPublisher - Whether or not to consume events as publisher's identity.

timeout - Timeout value (in milliseconds). A value of 0 never expires, and this call blocks indefinitely. A negative value means to receive the next event if one is immediately available without blocking.

durableSubscriptionName - Durable subscription name.

Throws:

oracle.fabric.common.FabricException - If it fails to subscribe to events with specified options.