org.mongodb.morphia.query.validation

Class SizeOperationValidator

java.lang.Object

org.mongodb.morphia.query.validation.OperationValidator

org.mongodb.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

Methods

Modifier and Type	Method and 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, Object value, List<ValidationFailure> validationFailures) Performs the actual validation, and assumes appliesTo has returned true

Methods inherited from class org.mongodb.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

validate

protected void validate(MappedField mappedField,
            Object value,
            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.

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.

getInstance

public static SizeOperationValidator getInstance()

Get the instance

Returns:

the Singleton instance of this validator