MapperExpression (Speedment - Runtime - Compute 3.2.10 API)

Type Parameters:

T - the input entity type

INNER - the type of the inner expression

MAPPER - the functional interface used to map from the type returned by the inner expression and the resulting type of this expression

All Superinterfaces:

Expression<T>
```
public interface MapperExpression<T,INNER extends Expression<T>,MAPPER>
extends Expression<T>
```
Specialized expression that takes the result of an inner expression and applies a mapping function to it.
Equality is determined by looking at inner(), mapper() and mapperType().

Since:

3.1.0

Author:

Emil Forslund

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class MapperExpression.MapperType
Enumeration of all possible mapping types.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`INNER`	`inner()`	Returns the inner expression used in this.
`MAPPER`	`mapper()`	Returns the mapping operation applied to the result from the inner operation.
`MapperExpression.MapperType`	`mapperType()`	Returns the type of mapper that the `mapper()`-method returns an instance of.

Methods inherited from interface com.speedment.runtime.compute.expression.Expression
expressionType

- Method Detail
  - inner
```
INNER inner()
```
    Returns the inner expression used in this.
    
    Returns:
    
    the inner expression
  - mapper
```
MAPPER mapper()
```
    Returns the mapping operation applied to the result from the inner operation.
    
    Returns:
    
    the mapping operation
  - mapperType
```
MapperExpression.MapperType mapperType()
```
    Returns the type of mapper that the mapper()-method returns an instance of.
    
    Returns:
    
    the type of mapper