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Say I have an list of objects with two fields field1 and field2, both of String type.
How do I get a list of all field1 values without having to iterate over the list, if it is at all possible?
An object is a reference towards a memory address. Then, the fields of this objects are other references towards other memory addresses.
Hence, a list of objects is a list of references. So, it’s impossible for the list to direclty access the object fields (references given by the references). The short answer is no.
Note: anyway you’ll find an API that does what you want, it still loops in the inside.