Package io.substrait.relation

Interface CopyOnWriteUtils.TransformFunction<T,C extends VisitationContext,E extends Exception>

Enclosing class:
CopyOnWriteUtils
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public static interface CopyOnWriteUtils.TransformFunction<T,C extends VisitationContext,E extends Exception>

  • Method Summary

    Modifier and Type
    Method
    Description
    Optional<T>
    apply(T t, C context)
    Applies a potential transformation to the given value.

  • Method Details

    • apply

      Optional<T> apply(T t, C context) throws E
      Applies a potential transformation to the given value.
      Parameters:
      t - the input value
      context - the visitation context
      Returns:
      an optional containing a replacement value if changed; empty if unchanged
      Throws:
      E - if the transformation fails