Deleted pattern checks

During test or production mode server startup, PolicyCenter determines whether any instances of specific product model patterns were deleted when compared to the last server startup. PolicyCenter does this by checking for a public identifier and code identifier in the current product model that matches ones in the previous product model.

For most patterns, PolicyCenter does not permit deletions from the product model. For a very small subset of these patterns, it allows deletions. The prohibited and allowed deletions are summarized in the following tables.

Prohibited deletions

Deleting instances of the following product model patterns is not allowed. If it detects deletions of any of these patterns, PolicyCenter adds a message to the server log and fails to start.

`AvailableCoverageCurrency`	`DirectCovTermPattern`	`Product`
`AvailablePolicyTerm`	`DocTemplateRef`	`ProductModifierPattern`
`ChoiceCovTermPattern`	`ExclusionPattern`	`ProductPolicyLinePattern`
`ConditionPattern`	`GenericCovTermPattern`	`ProductQuestionSetPattern`
`CoverageCategory`	`ModifierPatternBase`	`ProductRateFactorPattern`
`CoveragePattern`	`ModifierPattern`	`QuestionChoice`
`CoverageSymbolGroupPattern`	`Offering`	`QuestionFilter`
`CoverageSymbolPattern`	`OfferingQuestionFilter`	`Question`
`CovTermDefault`	`OfficialIdPattern`	`QuestionSet`
`CovTermLimits`	`OptionCovTermPattern`	`RateFactorPatternBase`
`CovTermOpt`	`PackageCovTermPattern`	`RateFactorPattern`
`CovTermPack`	`PackageTerm`	`TypekeyCovTermPattern`
`CovTermPattern`	`PolicyLinePattern`

Allowed deletions

Instances of the following product model patterns can be deleted without interfering with server startup.

`AuditSchedulePattern`	`ExclusionSelection`	`PackageCovTermSelection`
`ClauseGrandfatherState`	`GenericCovTermSelection`	`PackageGrandfatherState`
`ClauseSelection`	`GrandfatherState`	`PolicyLineSelection`
`ConditionSelection`	`LineModifierSelection`	`PolicyTermSelection`
`CoverageSelection`	`ModifierGrandfatherState`	`ProductModifierSelection`
`CovTermChoiceSelection`	`ModifierMinMaxLookup`	`QuestionSetSelection`
`CovTermGrandfatherState`	`ModifierSelectionBase`	`RateFactorMinMaxLookup`
`CovTermOptSelection`	`OfferingGrandfatherState`	`SeriesAuditSchedulePattern`
`CovTermPackSelection`	`OfferingSelection`	`SingleAuditSchedulePattern`
`CovTermSelection`	`OptionCovTermSelection`	`SupplementalText`
`DirectCovTermSelection`	`OptionGrandfatherState`	`TypekeyCovTermSelection`