Repository Pattern Standardization of methods

Question

All I am trying to find out the correct definition of the repository pattern.

My original understanding was this (extremely dumbed down)

• Separate your Busi

Answer 1

In addition to your generic repository interface (implementation 1) and your variation on the role-specific repository (implementation 2) you can also consider a generic method repository:

public interface IRepository
{
    void Save(ENTITY entity) where ENTITY : DomainEntity;

    ENTITY Load(Guid id) where ENTITY : DomainEntity;

    IQueryable Query() where ENTITY : DomainEntity;

    IQueryable Query(IDomainQuery whereQuery)
        where ENTITY : DomainEntity;
}

This third version comes from this blogpost by Jimmy Bogard, where he also expresses preference for the generic repository interface. I usually follow that with a generic repository baseclass which implements this interface; that way, I only have to implement the stuff that is different for each domain entity.