|A session bean updates data to an entity bean inside one method (one
|transaction)
|I see on console that the ejb store on the entity gets called for every
|method called on the entity.
this is normal.
I believe you want to do exactly the contrary :)))
define your session as "required" that means that when a method "inventory
update" will start you will start a transaction.
Now define your entity with "supports" and when the session will call it it
will propagate the tx and set it on a sync but not commit since they didn't
start it.
when the session commits, each entity will recieve a callback from the sync
and do the ejbStore dance... expect it to be slow since you do all at
once... (make sure you use tuned updates)
in clear swap the Required and Support tags below.
marc
|
|Here are the relevant config (ejb-jar.xml and jboss.xml):
|
|ejb-jar.xml (Note: <trans-attribute>Required</trans-attribute>)
|
| <enterprise-beans>
| <session>
| <ejb-name>InventoryEJBBean</ejb-name>
| <home>com.autotrader.inventory.impl.InventoryEJBHome</home>
| <remote>com.autotrader.inventory.impl.InventoryEJB</remote>
|
|<ejb-class>com.autotrader.inventory.impl.InventoryEJBBean</ejb-class>
| <session-type>Stateful</session-type>
| <transaction-type>Container</transaction-type>
| <ejb-ref>
| <ejb-ref-name>ejb/CarEjbBean</ejb-ref-name>
| <ejb-ref-type>Entity</ejb-ref-type>
| <home>com.autotrader.inventory.impl.CarEjbHome</home>
| <remote>com.autotrader.inventory.impl.CarEjb</remote>
| <ejb-link>CarEjbBean</ejb-link>
| </ejb-ref>
| <resource-ref>
| <res-ref-name>Oracle</res-ref-name>
| <res-type>javax.sql.DataSource</res-type>
| <res-auth>Container</res-auth>
| </resource-ref>
| </session>
| <entity>
| <ejb-name>CarEjbBean</ejb-name>
| <home>com.autotrader.inventory.impl.CarEjbHome</home>
| <remote>com.autotrader.inventory.impl.CarEjb</remote>
| <ejb-class>com.autotrader.inventory.impl.CarEjbBean</ejb-class>
| <persistence-type>Bean</persistence-type>
|
|<prim-key-class>com.autotrader.inventory.impl.CarEjbPK</prim-key-class>
| <reentrant>False</reentrant>
| <resource-ref>
| <res-ref-name>Oracle</res-ref-name>
| <res-type>javax.sql.DataSource</res-type>
| <res-auth>Container</res-auth>
| </resource-ref>
| </entity>
| </enterprise-beans>
| <assembly-descriptor>
| <container-transaction>
| <description>REQUIRED</description>
| <method>
| <ejb-name>CarEjbBean</ejb-name>
| <method-name>*</method-name>
| </method>
| <trans-attribute>Required</trans-attribute>
| </container-transaction>
| <container-transaction>
| <description>SUPPORTS</description>
| <method>
| <ejb-name>InventoryEJBBean</ejb-name>
| <method-name>*</method-name>
| </method>
| <trans-attribute>Supports</trans-attribute>
| </container-transaction>
| </assembly-descriptor>
| <ejb-client-jar></ejb-client-jar>
| </ejb-jar>
|
|...............
|
|jboss.xml (Note:
|<transaction-manager>org.jboss.tm.TxManager</transaction-manager>)
|
|<jboss>
| <secure>true</secure>
| <container-configurations>
| <container-configuration
|configuration-class="org.jboss.ejb.deployment.StatefulSessionContai
|nerConfig
|uration">
| <container-name>STATEFUL</container-name>
| <call-logging>true</call-logging>
|
|<container-invoker>org.jboss.ejb.plugins.jrmp13.server.JRMPContaine
|rInvoker<
|/container-invoker>
|
|<instance-pool>org.jboss.ejb.plugins.StatefulSessionInstancePool</i
|nstance-p
|ool>
|
|<instance-cache>org.jboss.ejb.plugins.StatefulSessionInstanceCache<
|/instance
|-cache>
|
|<persistence-manager>org.jboss.ejb.plugins.StatefulSessionFilePersi
|stenceMan
|ager</persistence-manager>
| <transaction-manager>org.jboss.tm.TxManager</transaction-manager>
| <authentication-module></authentication-module>
| <role-mapping-manager></role-mapping-manager>
| <container-invoker-conf>
| <Optimized>true</Optimized>
| </container-invoker-conf>
| <container-cache-conf>
|
|<cache-policy>org.jboss.ejb.plugins.LRUEnterpriseContextCachePolicy
|</cache-p
|olicy>
| <cache-policy-conf>
| <min-capacity>10</min-capacity>
| <max-capacity>1000</max-capacity>
| <overager-period>600</overager-period>
| <resizer-period>420</resizer-period>
| <max-bean-age>1200</max-bean-age>
| <max-cache-miss-period>10</max-cache-miss-period>
| <min-cache-miss-period>1</min-cache-miss-period>
| <cache-load-factor>0.75</cache-load-factor>
| </cache-policy-conf>
| </container-cache-conf>
| </container-configuration>
| <container-configuration
|configuration-class="org.jboss.ejb.deployment.EntityContainerConfig
|uration">
| <container-name>ENTITY</container-name>
| <call-logging>true</call-logging>
|
|<container-invoker>org.jboss.ejb.plugins.jrmp13.server.JRMPContaine
|rInvoker<
|/container-invoker>
|
|<instance-pool>org.jboss.ejb.plugins.EntityInstancePool</instance-pool>
|
|<instance-cache>org.jboss.ejb.plugins.EntityInstanceCache</instance-cache>
|
|<persistence-manager>org.jboss.ejb.plugins.BMPPersistenceManager</p
|ersistenc
|e-manager>
| <transaction-manager>org.jboss.tm.TxManager</transaction-manager>
| <authentication-module></authentication-module>
| <role-mapping-manager></role-mapping-manager>
| <container-invoker-conf>
| <Optimized>false</Optimized>
| </container-invoker-conf>
| <container-cache-conf>
|
|<cache-policy>org.jboss.ejb.plugins.LRUEnterpriseContextCachePolicy
|</cache-p
|olicy>
| <cache-policy-conf>
| <min-capacity>10</min-capacity>
| <max-capacity>1000</max-capacity>
| <overager-period>600</overager-period>
| <resizer-period>420</resizer-period>
| <max-bean-age>1200</max-bean-age>
| <max-cache-miss-period>10</max-cache-miss-period>
| <min-cache-miss-period>1</min-cache-miss-period>
| <cache-load-factor>0.75</cache-load-factor>
| </cache-policy-conf>
| </container-cache-conf>
| <container-pool-conf>
| <MaximumSize>100</MaximumSize>
| <MinimumSize>10</MinimumSize>
| </container-pool-conf>
| <commit-option>C</commit-option>
| </container-configuration>
| </container-configurations>
| <resource-managers>
| <resource-manager res-class="org.jboss.ejb.deployment.JDBCResource">
| <res-name>Oracle</res-name>
| <res-jndi-name>Oracle</res-jndi-name>
| </resource-manager>
| </resource-managers>
| <enterprise-beans>
| <session>
| <ejb-name>InventoryEJBBean</ejb-name>
| <jndi-name>InventoryEJBBean</jndi-name>
| <configuration-name>STATEFUL</configuration-name>
| <ejb-ref>
| <ejb-ref-name>ejb/CarEjbBean</ejb-ref-name>
| <jndi-name>CarEjbBean</jndi-name>
| </ejb-ref>
| <resource-ref>
| <res-ref-name>Oracle</res-ref-name>
| <resource-name>Oracle</resource-name>
| </resource-ref>
| </session>
| <entity>
| <ejb-name>CarEjbBean</ejb-name>
| <jndi-name>CarEjbBean</jndi-name>
| <configuration-name>ENTITY</configuration-name>
| <resource-ref>
| <res-ref-name>Oracle</res-ref-name>
| <resource-name>Oracle</resource-name>
| </resource-ref>
| </entity>
| </enterprise-beans>
| </jboss>
|
|
|Thanks in advance
|
|
|Miguel
|
|
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