DataTransformer (data-model 3.7.0 API)

```
@Target({FIELD,METHOD})
@Retention(RUNTIME)
public @interface DataTransformer
```
Generic version of allowing transformations to be applied when reading or writing data to and from the a database. Inspired by Hibernate's ColumnTransformer concept.

Since:

1.0

- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  java.lang.String read
  
  java.lang.String write
  An expression use to write a value to the database.

- Element Detail
  - read
```
java.lang.String read
```
    Returns:
    
    An expression used to read a value of the database.
    
    Default:
    
    ""
- - write
```
java.lang.String write
```
    An expression use to write a value to the database.
    
    Returns:
    
    The expression
    
    Default:
    
    ""