[Java] How to read data from VectorSchemaRoot without casting each value?

[Daniel Hsu]

I have a VectorSchemaRoot object containing many BigIntVector's and 
VarBinaryVector's, and I want to do many random value reads.

Right now I am doing the random value reads like this:

VectorSchemaRoot # getVector(<vector number>) # getObject(<row number>)

This returns an `Object` and then I look in VectorSchemaRoot # Schema # 
getField() to figure out whether to cast this object to a `long` or `byte[]`.

Is it possible to avoid casting from `Object` to `long` or `byte[]` on every 
random read?