Weimin Yu 1a4a31569e Alt entity model for fast JPA bulk query (#1398) ... * Alt entity model for fast JPA bulk query Defined an alternative JPA entity model that allows fast bulk loading of multi-level entities, DomainBase and DomainHistory. The idea is to bulk the base table as well as the child tables separately, and assemble them into the target entity in memory in a pipeline. For DomainBase: - Defined a DomainBaseLite class that models the "Domain" table only. - Defined a DomainHost class that models the "DomainHost" table (nsHosts field). - Exposed ID fields in GracePeriod so that they can be mapped to domains after being loaded into memory. For DomainHistory: - Defined a DomainHistoryLite class that models the "DomainHistory" table only. - Defined a DomainHistoryHost class that models its namesake table. - Exposed ID fields in GracePeriodHistory and DomainDsDataHistory classes so that they can be mapped to DomainHistory after being loaded into memory. In PersistenceModule, provisioned a JpaTransactionManager that uses the alternative entity model. Also added a pipeline option that specifies which JpaTransactionManager to use in a pipeline.		2021-10-20 16:48:56 -04:00
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main	Alt entity model for fast JPA bulk query (#1398)	2021-10-20 16:48:56 -04:00
test	Enhance the test for forbidden Schema changes (#815)	2020-09-24 12:31:08 -04:00