FieldsCombinationValidator (main 0.1.77-jooq-3.10.4 API)

All Superinterfaces:

ChangeValidator
```
public interface FieldsCombinationValidator<E extends EntityType<E>>
extends ChangeValidator
```
A validator that verifies that the resulting state of several fields is legal, no matter whether some of them are already set or being modified by the command. For instance, if a validator validates that the value of field 'B' is greater than the value of field 'A', it is going to be called when either 'B' or 'A' (or both) are being changed.

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static interface FieldsCombinationValidator.Substitution<E extends EntityType<E>,T>

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default java.util.stream.Stream<EntityField<?,?>>`	`fetchFields()`
`default java.util.stream.Stream<FieldsCombinationValidator.Substitution<E,?>>`	`substitutions()`
`ValidationError`	`validate(FieldsValueMap<E> fieldsValueMap)`	Implements the validation and return an error if there is.
`java.util.stream.Stream<EntityField<E,?>>`	`validatedFields()`
`default java.util.function.Predicate<CurrentEntityState>`	`validateWhen()`

- Method Detail
  - validatedFields
```
java.util.stream.Stream<EntityField<E,?>> validatedFields()
```
    Returns:
    
    the list of fields whose combination is being validated
  - validate
```
ValidationError validate(FieldsValueMap<E> fieldsValueMap)
```
    Implements the validation and return an error if there is.
    
    Parameters:
    
    fieldsValueMap - the map containing the fields specified by validatedFields(). If a field is being modified by the command, its new value is going to be in the map, otherwise the existing value would be passed.
    
    Returns:
    
    validation error if there is or null if OK
  - fetchFields
```
default java.util.stream.Stream<EntityField<?,?>> fetchFields()
```
    Returns:
    
    a list of fields to fetch.
  - validateWhen
```
default java.util.function.Predicate<CurrentEntityState> validateWhen()
```
    Returns:
    
    Predicate when should validate fields.
  - substitutions
```
default java.util.stream.Stream<FieldsCombinationValidator.Substitution<E,?>> substitutions()
```
    Returns:
    
    a field's substitutions.