Invercargill-Sql/src/orm/type-provider.vala

using InvercargillSql.Orm.Projections;

namespace InvercargillSql.Orm {

/**
 * Interface for providing entity mappers and projection definitions.
 * This interface allows OrmSession to be decoupled from the concrete TypeRegistry,
 * enabling custom implementations for testing or alternative registration strategies.
 */
public interface TypeProvider : Object {
    // Entity methods - non-generic versions taking Type parameter
    public abstract bool has_mapper_for_type(Type type);
    public abstract EntityMapper? get_mapper_for_type(Type type);
    
    // Entity methods - generic convenience versions
    public abstract bool has_mapper<T>();
    public abstract EntityMapper<T> get_mapper<T>() throws SqlError;
    
    // Projection methods - non-generic versions taking Type parameter
    public abstract bool has_projection_for_type(Type type);
    public abstract ProjectionDefinition? get_projection_for_type(Type type);
    
    // Projection methods - generic convenience versions
    public abstract bool has_projection<T>();
    public abstract ProjectionDefinition? get_projection<T>();
}

}