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:

java.io.Serializable, Bound<T>, BoundTerm<T>, Term
```
public class BoundTransform<S,T>
extends java.lang.Object
implements BoundTerm<T>
```
A transform expression.

See Also:

Serialized Form

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`T`	`eval(StructLike struct)`	Produce a value from the struct for this expression.
`BoundReference<S>`	`ref()`
`java.lang.String`	`toString()`
`Transform<S,T>`	`transform()`
`Type`	`type()`

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 Detail
  - 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()
```
    Specified by:
    
    ref in interface Bound<S>
    
    Returns:
    
    the underlying reference
  - transform
```
public Transform<S,T> transform()
```
  - type
```
public Type type()
```
    Specified by:
    
    type in interface BoundTerm<S>
    
    Returns:
    
    the type produced by this expression
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object