SizeOperationValidator (Morphia)

java.lang.Object
- dev.morphia.query.validation.OperationValidator
- - dev.morphia.query.validation.SizeOperationValidator

All Implemented Interfaces:

Validator
```
public final class SizeOperationValidator
extends OperationValidator
```
Checks if the value can have the FilterOperator.ALL operator applied to it. Since this class does not need state, and the methods can't be static because it implements an interface, it seems to be one of the few places where the Singleton pattern seems appropriate.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static SizeOperationValidator`	`getInstance()`	Get the instance
`protected FilterOperator`	`getOperator()`	This method is called by the `apply` method to determine whether to validate the query.
`protected void`	`validate(MappedField mappedField, java.lang.Object value, java.util.List<ValidationFailure> validationFailures)`	Performs the actual validation, and assumes `appliesTo` has returned true

Methods inherited from class dev.morphia.query.validation.OperationValidator
apply

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getInstance
```
public static SizeOperationValidator getInstance()
```
    Get the instance
    
    Returns:
    
    the Singleton instance of this validator
  - getOperator
```
protected FilterOperator getOperator()
```
    Description copied from class: OperationValidator
    
    This method is called by the apply method to determine whether to validate the query. The validator will only work for a single FilterOperator, and this will be returned by this method
    
    Specified by:
    
    getOperator in class OperationValidator
    
    Returns:
    
    the FilterOperator this validator cares about.
  - validate
```
protected void validate(MappedField mappedField,
                        java.lang.Object value,
                        java.util.List<ValidationFailure> validationFailures)
```
    Description copied from class: OperationValidator
    
    Performs the actual validation, and assumes appliesTo has returned true
    
    Specified by:
    
    validate in class OperationValidator
    
    Parameters:
    
    mappedField - the field being queried
    
    value - the query value, to apply the operator to. This should not be null.
    
    validationFailures - the list to add any new ValidationFailures to. If validation passed this list will not change.