Customizing persistence management

The promotion engine's persistence management implementation consists of seven persistence managers for seven types of objects.

About this task

The seven types of objects are:

Promotions
Promotion groups
Promotion policies
Coupons
Promotion arguments
Promotion statistics
Dynamic attributes

It is unlikely that the persistence management implementation will require customization. However, if required, the steps are the same as customizing either the agenda builder or the sequence builder. The same three step process applies:

Procedure

Implement the corresponding interface.
The seven interfaces for the persistence managers include the following:
- com.ibm.commerce.marketing.promotion.PromotionPersitenceManager
- com.ibm.commerce.marketing.promotion.group.PromotionGroupPersitenceManager
- com.ibm.commerce.marketing.promotion.policy.PromotionPolicyPersitenceManager
- com.ibm.commerce.marketing.promotion.coupon.CouponPersitenceManager
- com.ibm.commerce.marketing.promotion.stats.StatsPersitenceManager
- com.ibm.commerce.marketing.promotion.runtime.PromotionArgumentPersitenceManager
Since all of the interfaces are subclasses of XMLizable, part of implementing this interface includes defining the toXML and fromXML methods as well as designing the serialized XML form of these persistence managers.

Modify the promotion engine configuration to register the change.

Locate the PersistenceManagerRegistry element:


<PersistenceManagerRegistry impl=
      "com.ibm.commerce.marketing.promotion.persistence.PersistenceManagerRegistry">
   <PromotionPersistenceManager impl=
         "com.ibm.commerce.marketing.promotion.PromotionSessionBeanPersistenceManager">
      <InitialCacheSize>1024</InitialCacheSize>
      <MaxCacheSize>8192</MaxCacheSize>
   </PromotionPersistenceManager>

   <PromotionPolicyPersistenceManager impl=
         "com.ibm.commerce.marketing.promotion.policy.PromotionPolicySessionBeanPersistenceManager">
      <InitialCacheSize>32</InitialCacheSize>
      <MaxCacheSize>1024</MaxCacheSize>
   </PromotionPolicyPersistenceManager>
   
   <PromotionGroupPersistenceManager impl=
         "com.ibm.commerce.marketing.promotion.group.PromotionGroupSessionBeanPersistenceManager">
      <InitialCacheSize>32</InitialCacheSize>
      <MaxCacheSize>1024</MaxCacheSize>
   </PromotionGroupPersistenceManager>

   <DynamicAttributePersistenceManager impl=
         "com.ibm.commerce.marketing.promotion.dynattr.DynamicAttributeSessionBeanPersistenceManager">
      <InitialCacheSize>32</InitialCacheSize>
      <MaxCacheSize>1024</MaxCacheSize>
   </DynamicAttributePersistenceManager>

   <PromotionArgumentPersistenceManager impl=
         "com.ibm.commerce.marketing.promotion.runtime.PromotionArgumentSessionBeanPersistenceManager">
         
   <CouponPersistenceManager impl=
         "com.ibm.commerce.marketing.promotion.coupon.CouponSessionBeanPersistenceManager">
         
   <StatsPersistenceManager impl=
         "com.ibm.commerce.marketing.promotion.stats.StatsSessionBeanPersistenceManager>
</PersistenceManagerRegistry>

Change the XML element that corresponds to your changed persistence manager.

Restart WebSphere Commerce.

You must restart WebSphere Commerce for the changes to take effect.