EntityChangeValidator (main 0.1.77-jooq-3.10.4 API)

Type Parameters:

E - entity type
```
public interface EntityChangeValidator<E extends EntityType<E>>
```
A validator that checks number of fields and uses entity and parent fields for the verification.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.util.stream.Stream<? extends EntityField<?,?>>`	`fetchFields()`
`SupportedChangeOperation`	`getSupportedChangeOperation()`
`ValidationError`	`validate(EntityChange<E> entityChange, CurrentEntityState currentState)`	Called by the framework to validate the fields in entity change.
`java.util.stream.Stream<EntityField<E,?>>`	`validatedFields()`

- Method Detail
  - validatedFields
```
java.util.stream.Stream<EntityField<E,?>> validatedFields()
```
    Returns:
    
    the field validated by this validator
  - getSupportedChangeOperation
```
SupportedChangeOperation getSupportedChangeOperation()
```
    Returns:
    
    the supported change operation
  - fetchFields
```
java.util.stream.Stream<? extends EntityField<?,?>> fetchFields()
```
    Returns:
    
    a list of fields to fetch
  - validate
```
ValidationError validate(EntityChange<E> entityChange,
                         CurrentEntityState currentState)
```
    Called by the framework to validate the fields in entity change. The implementation can query the entity only for the fields it has declared in fetchFields().
    
    Parameters:
    
    entityChange - entity change
    
    currentState - existing entity
    
    Returns:
    
    a validation error if any, null if none