[jboss-jira] [JBoss JIRA] Updated: (JBRULES-2604) New simple JPAKnowledgeServiceBean that can be used to create / reload Stateful Knowledge Sessions

[Anatoly Polinsky (JIRA)]

     [ https://jira.jboss.org/browse/JBRULES-2604?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Anatoly Polinsky updated JBRULES-2604:
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    Attachment: JPAKnowledgeServiceBean.java


attaching the artifact

> New simple JPAKnowledgeServiceBean that can be used to create / reload Stateful Knowledge Sessions
> --------------------------------------------------------------------------------------------------
>
>                 Key: JBRULES-2604
>                 URL: https://jira.jboss.org/browse/JBRULES-2604
>             Project: Drools
>          Issue Type: Patch
>      Security Level: Public(Everyone can see) 
>          Components: All
>    Affects Versions: 5.1.0.FINAL
>         Environment: N/A
>            Reporter: Anatoly Polinsky
>            Assignee: Mark Proctor
>         Attachments: JPAKnowledgeServiceBean.java
>
>   Original Estimate: 1 hour
>  Remaining Estimate: 1 hour
>
> Spring bean that serves as a facade into Drools Session creation and reloading using persistent (JPA) knowledge state.
> Public client APIs are newStatefulKnowledgeSession( ) and loadStatefulKnowledgeSession( sessionID ) which do just that:
> newStatefulKnowledgeSession():            Creates a new StatefulKnowledgeSession
> loadStatefulKnowledgeSession( sessionID ):        Reloads an existing ( previously persisted StatefulKnowledgeSession ) by the sesssionID 
> Here is an example on how this bean can be configured: 
>  	<bean id="abstractKnowledgeProvider"
>                class="org.drools.container.spring.beans.persistence.JPAKnowledgeServiceBean">
>                <property name="entityManagerFactory" ref="entityManagerFactory" />
>                <property name="transactionManager" ref="txManager" />
>                <property name="knowledgeStore" ref="kstore"/>
>   
>                <property name="kbase">
>                    <drools:kbase id="kbase" node="node">
>                        <drools:resources>
>                            <drools:resource type="DRF"
>                                             source="classpath:./META-INF/flow/subprocess-flow.rf" />					             
>                            <drools:resource type="DRF"
>                                             source="classpath:./META-INF/flow/parallel-subprocess-flow.rf" />
>                            <drools:resource type="DRF"
>                                             source="classpath:./META-INF/flow/approval-flow.rf" />
>                        </drools:resources>
>                    </drools:kbase>
>                </property>
>                <property name="variablePersisters">
>                    <util:map>
>                        <entry key="javax.persistence.Entity"
>                               value="org.drools.persistence.processinstance.persisters.JPAVariablePersister" />
>                        <entry key="java.io.Serializable"
>                               value="org.drools.persistence.processinstance.persisters.SerializableVariablePersister" />
>                        <entry key="java.lang.String"
>                               value="org.drools.persistence.processinstance.persisters.StringVariablePersister" />
>                    </util:map>
>                </property>
> 	</bean>
> Besides "variablePersisters" all properties are mandatory ( cannot be NULL / not set ). 

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