Declare ObjectRepository's template as covariant #292
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greg0ire
approved these changes
May 3, 2022
stof
approved these changes
May 3, 2022
This was referenced May 31, 2022
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The
ObjectRepositoryinterface is documented as generic with a template variableT. SinceTis only used in return types, we can safely assume that any piece of code that expects anObjectRepository<ParentClass>can safely operate on anObjectRepository<ChildClass>(givenChildClass extends ParentClassof course).This is why I'd like to declare the template variable as covariant.