Package org.apache.iceberg

Class Accessors

  • public class Accessors
extends java.lang.Object
    Position2Accessor and Position3Accessor here is an optimization. For a nested schema like: 
     root
  |-- a: struct (nullable = false)
  |    |-- b: struct (nullable = false)
  |        | -- c: string (containsNull = false)
    Then we will use Position3Accessor to access nested field 'c'. It can be accessed like this: row.get(p0, StructLike.class).get(p1, StructLike.class).get(p2, javaClass). Commonly, Nested fields with depth=1 or 2 or 3 are the fields that will be accessed frequently, so this optimization will help to access this kind of schema. For schema whose depth is deeper than 3, then we will use the Accessors.WrappedPositionAccessor to access recursively.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.lang.Integer toPosition​(Accessor<StructLike> accessor)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • toPosition

        public static java.lang.Integer toPosition​(Accessor<StructLike> accessor)