Hey,
So far I managed to make it working without additional namespace. Because
activiti ProcessEngineConfiguration always returns a own instance I was able to
use ext:field-injection to complete this task.
Many thanks for support,
Best regards,
Lukasz
> Timothy,
> That's looks really good! I'll try do something myself, to reach this. If I
> will meet problems then will post a message to dev@.
>
> Best regards,
> Lukasz
>
>
>> All contributions are welcome!
>>
>> I would imagine that the most practical approach would be to add a new
>> namespace handler called fluent, builder or similar. This could be provided
>> as a new bundle in the blueprint project.
>>
>> Adding some XML along the lines of the following to your blueprint:
>>
>> <bean class="builderClass" fluent:begin-method="getConfigurable"
>> fluent:end-method="create">
>>
>> <argument>2</argument>
>>
>> <fluent:configure method="setJDBCURL" value="someValue"/>
>> <fluent:configure method="autoCommit">
>> <value>true</value>
>> <fluent:configure method="addListener" ref="someBeanId"/>
>> </bean>
>>
>>
>> could result in a configured bean using a fluent API like
>>
>> builderClass.getConfigurable(2).setJDBCURL("someValue").autoCommit(true).addListener(blueprintBean).create();
>>
>> Under the covers the namespace handler can turn the bean metadata into a
>> "normal" blueprint metadata tree like the really verbose XML I gave as an
>> example before.
>>
>> What do you think?
>>
>> Regards,
>>
>> Tim Ward
>> -------------------
>> Apache Aries PMC member & Enterprise OSGi advocate
>> Enterprise OSGi in Action (http://www.manning.com/cummins)
>> -------------------
>>
>>
>> From: [email protected]
>> Subject: Re: Aries and fluent builders
>> Date: Thu, 15 Dec 2011 09:42:40 +0100
>> To: [email protected]
>>
>> Timothy,
>> If you could give an advice where to start, I can experiment. Maybe we can
>> add an attribute from additional namespace (aries-util?) which will mark an
>> field as non standard java bean and let inject given value? But, it is
>> possible to extend a <property> behavior somehow?
>>
>> Regards,
>> Lukasz
>>
>> We could look at adding some better fluent support in Aries blueprint
>> (although it would be in a non-standard namespace). It might be a while
>> before there was anything actually in trunk though.
>>
>> Regards
>>
>> Tim Ward
>> -------------------
>> Apache Aries PMC member & Enterprise OSGi advocate
>> Enterprise OSGi in Action (http://www.manning.com/cummins)
>> -------------------
>>
>>
>> From: [email protected]
>> Subject: Re: Aries and fluent builders
>> Date: Thu, 15 Dec 2011 09:26:37 +0100
>> To: [email protected]
>>
>> Hey Timothy,
>> I know that solution proposed by you will work but it will mess a XML. Once
>> I'll need to inject more values I will have 100 lines only to put true or
>> false in some fields.
>>
>> Regards,
>> Lukasz
>>
>>
>> Hi,
>>
>> It's not very concise, but this should work:
>>
>> <bean id="processEngineConfiguration1"
>> class="org.activiti.engine.ProcessEngineConfiguration"
>> factory-method="createStandaloneInMemProcessEngineConfiguration"/>
>>
>> <bean id="processEngineConfiguration2"
>> factory-ref="processEngineConfiguration1"
>> factory-method="setDatabaseSchemaUpdate">
>> <argument value="false"/>
>> </bean>
>>
>> <bean id="processEngineConfiguration3"
>> factory-ref="processEngineConfiguration2" factory-method="setDataSource">
>> <argument>
>> <bean class="org.h2.jdbcx.JdbcDataSource">
>> <property name="url" value="jdbc:h2:mem:activiti" />
>> </bean>
>> </argument>
>> </bean>
>>
>> <bean id="processEngineConfiguration4"
>> factory-ref="processEngineConfiguration3"
>> factory-method="setJobExecutorActivate">
>> <argument value="true"/>
>> </bean>
>>
>>
>> <bean id="processEngine" factory-ref="processEngineConfiguration4"
>> factory-method="buildProcessEngine"/>
>>
>> If you're interested in more information about advanced blueprint techniques
>> then you may find Enterprise OSGi in Action to be a useful resource. You can
>> get 37% off if you use the code eosgi37 at the Manning website -
>> http://www.manning.com/cummins
>>
>> Regards,
>>
>> Tim Ward
>> -------------------
>> Apache Aries PMC member & Enterprise OSGi advocate
>> Enterprise OSGi in Action (http://www.manning.com/cummins)
>> -------------------
>>
>>
>> From: [email protected]
>> Subject: Aries and fluent builders
>> Date: Thu, 15 Dec 2011 08:58:47 +0100
>> To: [email protected]
>>
>> Hello,
>> I tried to use Aries instead of Spring to configure Activiti process engine.
>> The problem I meet was related to fluent builders. Activiti can be
>> configured with fluent builder, for example:
>>
>> ProcessEngine processEngine =
>> ProcessEngineConfiguration.createStandaloneInMemProcessEngineConfiguration()
>> .setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_FALSE)
>> .setJdbcUrl("jdbc:h2:mem:my-own-db;DB_CLOSE_DELAY=1000")
>> .setJobExecutorActivate(true)
>> .buildProcessEngine();
>>
>> I ported this fragment to an XML fragment:
>>
>> <bean id="processEngineConfiguration"
>> class="org.activiti.engine.impl.cfg.StandaloneInMemProcessEngineConfiguration">
>> <property name="jobExecutorActivate" value="true" />
>> <property name="databaseSchemaUpdate" value="false" />
>> <property name="dataSource">
>> <bean class="org.h2.jdbcx.JdbcDataSource">
>> <property name="url" value="jdbc:h2:mem:activiti" />
>> </bean>
>> </property>
>> </bean>
>> <bean id="processEngine" factory-ref="processEngineConfiguration"
>> factory-method="buildProcessEngine">
>> </bean>
>>
>> The error reported by blueprint is:
>> org.osgi.service.blueprint.container.ComponentDefinitionException: No setter
>> for jobExecutorActivate property
>>
>> The jobExecutorActivate property returns an instance of
>> ProcessEngineConfiguration so it is not a regular Java Bean property. Do you
>> have any ideas how to manage both - Aries and Activiti to work together?
>>
>> Best regards,
>> Lukasz
>>
>>
>>
>>
>
