Hi Ilya,
Thanks for your guidance and happy new year! Sorry for late catchup.
You are right, Ignite Native Persistence does track the changes in class
definition for "Ignite Native Persistence". But the configuration to load
data from Cache to Cassandra store is stored in xml configuration file.
This configuration xml file is passed at runtime (see the example
configuration below). When ignite server is stopped, the cache configuration
is gone, not stored in the any place as far as I understand. When the
Ignite is restarted, the new xml is passed, there is no previous
configuration for the old class definition in the xml configuration.
My question - how/where does the ignite server get/read the old class
definition if this class definition is provided in the most recent xml
config file?
So what I said is that the Cassandra Store implementation may not need to
change. It's the call that reads the xml configuration and stores the data
in Cassandra Store via Ignite Cache. If I remove Ignite Native
configuration ("persistenceEnabled" value="false"), then Ignite server uses
the xml configuration file passed at runtime. The Ignite Cache has all new
class definiton.
I'd like your help to guide me make the changes to read the xml
configuration at runtime instead of reading the previously cached
configuration.
<bean id="catalog_uom_persistence_settings"
class="org.apache.ignite.cache.store.cassandra.persistence.KeyValuePersistenceSettings">
<constructor-arg type="java.lang.String">
<value>
</value>
</constructor-arg>
</bean>
<bean class="org.apache.ignite.configuration.DataStorageConfiguration">
<property name="defaultDataRegionConfiguration">
<bean
class="org.apache.ignite.configuration.DataRegionConfiguration">
<property name="name" value="Default_Region"/>
<property name="initialSize" value="#{10L *
1024 * 1024}"/>
<property name="maxSize" value="#{2L * 1024 *
1024 * 1024}"/>
<property name="persistenceEnabled"
value="true"/>
</bean>
</property>
</bean>
<bean class="org.apache.ignite.configuration.CacheConfiguration">
<property name="name" value="Uom"/>
<property name="atomicityMode" value="TRANSACTIONAL"/>
<property name="cacheMode" value="REPLICATED"/>
<property name="readThrough" value="true"/>
<property name="writeThrough" value="false"/>
<property name="sqlSchema" value="catalog"/>
<property name="indexedTypes">
<list>
<value
type="java.lang.Class">java.lang.String</value>
<value
type="java.lang.Class">com.procurant.catalog.entity.Uom</value>
</list>
</property>
<property name="cacheStoreFactory">
<bean
class="org.apache.ignite.cache.store.cassandra.CassandraCacheStoreFactory">
<property name="dataSource" ref="cassandra"/>
<property name="persistenceSettingsBean"
value="catalog_uom_persistence_settings"></property>
</bean>
</property>
</bean>
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