entities | Character Entities for HTML , CSS and Javascript

You can create a subquery and use it in your where clause:

Three things come immediate to mind.

The first is nothing to do with your question but CouponRepository should not have its own member for _couponApiDBContext it has access to the base class TContext - that's the whole point of having it generic in the first place.

The second is that you are specializing IRepository with RedeemCoupon method in ICouponRepository - so you have zero chance of registering an open generic type and just expecting DI to know what actual interface you're after.

You're left with removing this AddTransient(typeof(IRepository<>), typeof(Repository<,>)) - it's pointless as DI cannot instantiate an abstract class anyway, and that is the root cause of your error message and you should register AddTransient() and request ICouponRepository where you need it - you cant ask for IRepository as that will not have your RedeemCoupon method which I assume you need.

I'm assuming you have missing dependencies on your code generation class path. Once you update your question, I'll update my answer.

jOOQ won't support your generated composite types in generated code out of the box, you'll still have to add forced type configurations for that, possibly embeddable type configurations:

• https://www.jooq.org/doc/latest/manual/code-generation/codegen-advanced/codegen-config-database/codegen-database-forced-types/
• https://www.jooq.org/doc/latest/manual/code-generation/codegen-embeddable-types/

Note that the JPADatabase offers a quick win by integrating with simple JPA defined schemas very quickly. It has its caveats. For best results, I recommend going DDL first (and generate both jOOQ code and JPA model from that), because it will be much easier to put your schema change management under version control, e.g. via Flyway or Liquibase.

common solution:

After hours of searching, the solution is to add

First make a Repository class and make an instance of your DAO

Convert the below Aggregation Pipeline code to Mongoose Equivalent to get the output you desire.

The mapping that happens between the output of employeeRepository#findByUuid that is Optional and the method output type Optional is 1:1, so no Stream (calling stream()) here is involved.

All you need is to map properly the fields of Employee into EmployeeDTO. Handling the case the Optional returned from the employeeRepository#findByUuid is actually empty could be left on the subsequent chains of the optional. There is no need for orElse or findFirst calls.

Assuming the following classes both with all-args constructor and getters:

1. It is the main method, so there is no need to cleanup. When main returns, the program exits. If this wasn't the main, then you would be correct.

2. There is no best practice that fits all use cases. The code you show here is a very common pattern. The function creates a goroutine, and returns a channel so that others can communicate with that goroutine. There is no rule that governs how channels must be created. There is no way to terminate that goroutine though. One use case this pattern fits well is reading a large resultset from a database. The channel allows streaming data as it is read from the database. In that case usually there are other means of terminating the goroutine though, like passing a context.

3. Again, there are no hard rules on how channels should be created/closed. A channel can be left open, and it will be garbage collected when it is no longer used. If the use case demands so, the channel can be left open indefinitely, and the scenario you worry about will never happen.