BoundTransform

java.lang.Object

org.apache.iceberg.expressions.BoundTransform<S,T>

Type Parameters:: S - the Java type of values transformed by this function.; T - the Java type of values returned by the function.

All Implemented Interfaces:: Serializable, Bound<T>, BoundTerm<T>, Term

public class BoundTransform<S,T> extends Object implements BoundTerm<T>

A transform expression.

See Also:

Serialized Form

Method Summary

Modifier and Type

Method

Description

T

eval(StructLike struct)

Produce a value from the struct for this expression.

boolean

isEquivalentTo(BoundTerm<?> other)

Returns whether this term is equivalent to another.

BoundReference<S>

ref()

Returns the underlying reference.

String

toString()

Transform<S,T>

transform()

Type

type()

Returns the type produced by this expression.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.iceberg.expressions.BoundTerm
comparator

Method Details
- eval
  
  public T eval(StructLike struct)
  
  Description copied from interface: Bound
  
  Produce a value from the struct for this expression.
  
  Specified by:
  
  eval in interface Bound<S>
  
  Parameters:
  
  struct - a struct of incoming data
  
  Returns:
  
  the value of this expression when evaluated on the incoming struct
- ref
  
  public BoundReference<S> ref()
  
  Description copied from interface: Bound
  
  Returns the underlying reference.
  
  Specified by:
  
  ref in interface Bound<S>
- transform
  
  public Transform<S,T> transform()
- type
  
  public Type type()
  
  Description copied from interface: BoundTerm
  
  Returns the type produced by this expression.
  
  Specified by:
  
  type in interface BoundTerm<S>
- isEquivalentTo
  
  public boolean isEquivalentTo(BoundTerm<?> other)
  
  Description copied from interface: BoundTerm
  
  Returns whether this term is equivalent to another.
  
  Specified by:
  
  isEquivalentTo in interface BoundTerm<S>
  
  Parameters:
  
  other - a term
  
  Returns:
  
  true if this term returns the same values as the other, false otherwise
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Object