Class GenericMessageEndpointManager
- All Implemented Interfaces:
org.springframework.beans.factory.DisposableBean
,org.springframework.beans.factory.InitializingBean
,org.springframework.context.Lifecycle
,org.springframework.context.Phased
,org.springframework.context.SmartLifecycle
This class is completely generic in that it may work with any ResourceAdapter, any MessageEndpointFactory, and any ActivationSpec. It can be configured in standard bean style, for example through Spring's XML bean definition format, as follows:
<bean class="org.springframework.jca.endpoint.GenericMessageEndpointManager"> <property name="resourceAdapter" ref="resourceAdapter"/> <property name="messageEndpointFactory"> <bean class="org.springframework.jca.endpoint.GenericMessageEndpointFactory"> <property name="messageListener" ref="messageListener"/> </bean> </property> <property name="activationSpec"> <bean class="org.apache.activemq.ra.ActiveMQActivationSpec"> <property name="destination" value="myQueue"/> <property name="destinationType" value="jakarta.jms.Queue"/> </bean> </property> </bean>
In this example, Spring's own GenericMessageEndpointFactory
is used
to point to a standard message listener object that happens to be supported
by the specified target ResourceAdapter: in this case, a JMS
jakarta.jms.MessageListener
object as supported by the ActiveMQ
message broker, defined as a Spring bean:
<bean id="messageListener" class="com.myorg.messaging.myMessageListener"> <!-- ... --> </bean>
The target ResourceAdapter may be configured as a local Spring bean as well (the typical case) or obtained from JNDI (e.g. on WebLogic). For the example above, a local ResourceAdapter bean could be defined as follows (matching the "resourceAdapter" bean reference above):
<bean id="resourceAdapter" class="org.springframework.jca.support.ResourceAdapterFactoryBean"> <property name="resourceAdapter"> <bean class="org.apache.activemq.ra.ActiveMQResourceAdapter"> <property name="serverUrl" value="tcp://localhost:61616"/> </bean> </property> <property name="workManager"> <bean class="..."/> </property> </bean>
For a different target resource, the configuration would simply point to a
different ResourceAdapter and a different ActivationSpec object (which are
both specific to the resource provider), and possibly a different message
listener (e.g. a CCI MessageListener
for a
resource adapter which is based on the JCA Common Client Interface).
The asynchronous execution strategy can be customized through the
"workManager" property on the ResourceAdapterFactoryBean as shown above,
where <bean class="..."/>
should be replaced with configuration for
any JCA-compliant WorkManager
.
Transactional execution is a responsibility of the concrete message endpoint,
as built by the specified MessageEndpointFactory. GenericMessageEndpointFactory
supports XA transaction participation through its "transactionManager" property,
typically with a Spring JtaTransactionManager
or a plain TransactionManager
implementation specified there.
<bean class="org.springframework.jca.endpoint.GenericMessageEndpointManager"> <property name="resourceAdapter" ref="resourceAdapter"/> <property name="messageEndpointFactory"> <bean class="org.springframework.jca.endpoint.GenericMessageEndpointFactory"> <property name="messageListener" ref="messageListener"/> <property name="transactionManager" ref="transactionManager"/> </bean> </property> <property name="activationSpec"> <bean class="org.apache.activemq.ra.ActiveMQActivationSpec"> <property name="destination" value="myQueue"/> <property name="destinationType" value="jakarta.jms.Queue"/> </bean> </property> </bean> <bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager"/>
Alternatively, check out your resource provider's ActivationSpec object, which should support local transactions through a provider-specific config flag, e.g. ActiveMQActivationSpec's "useRAManagedTransaction" bean property.
<bean class="org.springframework.jca.endpoint.GenericMessageEndpointManager"> <property name="resourceAdapter" ref="resourceAdapter"/> <property name="messageEndpointFactory"> <bean class="org.springframework.jca.endpoint.GenericMessageEndpointFactory"> <property name="messageListener" ref="messageListener"/> </bean> </property> <property name="activationSpec"> <bean class="org.apache.activemq.ra.ActiveMQActivationSpec"> <property name="destination" value="myQueue"/> <property name="destinationType" value="jakarta.jms.Queue"/> <property name="useRAManagedTransaction" value="true"/> </bean> </property> </bean>
- Since:
- 2.5
- Author:
- Juergen Hoeller
- See Also:
-
Field Summary
Fields inherited from interface org.springframework.context.SmartLifecycle
DEFAULT_PHASE
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionvoid
Prepares the message endpoint, and automatically activates it if the "autoStartup" flag is set to "true".void
destroy()
Deactivates the message endpoint, preparing it for shutdown.Return the JCA ActivationSpec to use for activating the endpoint.Return the JCA MessageEndpointFactory to activate.int
getPhase()
Return the phase in which this endpoint manager will be started and stopped.Return the JCA ResourceAdapter to manage endpoints for.boolean
Return the value for the 'autoStartup' property.boolean
Return whether the configured message endpoint is currently active.void
setActivationSpec
(ActivationSpec activationSpec) Set the JCA ActivationSpec to use for activating the endpoint.void
setAutoStartup
(boolean autoStartup) Set whether to auto-start the endpoint activation after this endpoint manager has been initialized and the context has been refreshed.void
setMessageEndpointFactory
(MessageEndpointFactory messageEndpointFactory) Set the JCA MessageEndpointFactory to activate, pointing to a MessageListener object that the endpoints will delegate to.void
setPhase
(int phase) Specify the phase in which this endpoint manager should be started and stopped.void
setResourceAdapter
(ResourceAdapter resourceAdapter) Set the JCA ResourceAdapter to manage endpoints for.void
start()
Activates the configured message endpoint.void
stop()
Deactivates the configured message endpoint.void
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Constructor Details
-
GenericMessageEndpointManager
public GenericMessageEndpointManager()
-
-
Method Details
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setResourceAdapter
Set the JCA ResourceAdapter to manage endpoints for. -
getResourceAdapter
Return the JCA ResourceAdapter to manage endpoints for. -
setMessageEndpointFactory
Set the JCA MessageEndpointFactory to activate, pointing to a MessageListener object that the endpoints will delegate to.A MessageEndpointFactory instance may be shared across multiple endpoints (i.e. multiple GenericMessageEndpointManager instances), with different
ActivationSpec
objects applied. -
getMessageEndpointFactory
Return the JCA MessageEndpointFactory to activate. -
setActivationSpec
Set the JCA ActivationSpec to use for activating the endpoint.Note that this ActivationSpec instance should not be shared across multiple ResourceAdapter instances.
-
getActivationSpec
Return the JCA ActivationSpec to use for activating the endpoint. -
setAutoStartup
public void setAutoStartup(boolean autoStartup) Set whether to auto-start the endpoint activation after this endpoint manager has been initialized and the context has been refreshed.Default is "true". Turn this flag off to defer the endpoint activation until an explicit
start()
call. -
isAutoStartup
public boolean isAutoStartup()Return the value for the 'autoStartup' property. If "true", this endpoint manager will start upon a ContextRefreshedEvent.- Specified by:
isAutoStartup
in interfaceorg.springframework.context.SmartLifecycle
-
setPhase
public void setPhase(int phase) Specify the phase in which this endpoint manager should be started and stopped. The startup order proceeds from lowest to highest, and the shutdown order is the reverse of that. By default, this value isInteger.MAX_VALUE
meaning that this endpoint manager starts as late as possible and stops as soon as possible. -
getPhase
public int getPhase()Return the phase in which this endpoint manager will be started and stopped.- Specified by:
getPhase
in interfaceorg.springframework.context.Phased
- Specified by:
getPhase
in interfaceorg.springframework.context.SmartLifecycle
-
afterPropertiesSet
Prepares the message endpoint, and automatically activates it if the "autoStartup" flag is set to "true".- Specified by:
afterPropertiesSet
in interfaceorg.springframework.beans.factory.InitializingBean
- Throws:
ResourceException
-
start
public void start()Activates the configured message endpoint.- Specified by:
start
in interfaceorg.springframework.context.Lifecycle
-
stop
public void stop()Deactivates the configured message endpoint.- Specified by:
stop
in interfaceorg.springframework.context.Lifecycle
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stop
- Specified by:
stop
in interfaceorg.springframework.context.SmartLifecycle
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isRunning
public boolean isRunning()Return whether the configured message endpoint is currently active.- Specified by:
isRunning
in interfaceorg.springframework.context.Lifecycle
-
destroy
public void destroy()Deactivates the message endpoint, preparing it for shutdown.- Specified by:
destroy
in interfaceorg.springframework.beans.factory.DisposableBean
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