340 lines
11 KiB
PHP
340 lines
11 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Validator\Context;
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use Symfony\Component\Validator\Constraint;
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use Symfony\Component\Validator\ConstraintViolationListInterface;
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use Symfony\Component\Validator\Mapping;
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use Symfony\Component\Validator\Mapping\MetadataInterface;
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use Symfony\Component\Validator\Validator\ValidatorInterface;
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use Symfony\Component\Validator\Violation\ConstraintViolationBuilderInterface;
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/**
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* The context of a validation run.
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*
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* The context collects all violations generated during the validation. By
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* default, validators execute all validations in a new context:
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*
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* $violations = $validator->validate($object);
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*
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* When you make another call to the validator, while the validation is in
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* progress, the violations will be isolated from each other:
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*
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* public function validate($value, Constraint $constraint)
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* {
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* $validator = $this->context->getValidator();
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*
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* // The violations are not added to $this->context
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* $violations = $validator->validate($value);
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* }
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*
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* However, if you want to add the violations to the current context, use the
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* {@link ValidatorInterface::inContext()} method:
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*
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* public function validate($value, Constraint $constraint)
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* {
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* $validator = $this->context->getValidator();
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*
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* // The violations are added to $this->context
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* $validator
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* ->inContext($this->context)
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* ->validate($value)
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* ;
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* }
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*
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* Additionally, the context provides information about the current state of
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* the validator, such as the currently validated class, the name of the
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* currently validated property and more. These values change over time, so you
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* cannot store a context and expect that the methods still return the same
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* results later on.
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*
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* @author Bernhard Schussek <bschussek@gmail.com>
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*/
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interface ExecutionContextInterface
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{
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/**
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* Adds a violation at the current node of the validation graph.
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*
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* @param string|\Stringable $message The error message as a string or a stringable object
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* @param array $params The parameters substituted in the error message
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*/
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public function addViolation(string $message, array $params = []);
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/**
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* Returns a builder for adding a violation with extended information.
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*
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* Call {@link ConstraintViolationBuilderInterface::addViolation()} to
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* add the violation when you're done with the configuration:
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*
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* $context->buildViolation('Please enter a number between %min% and %max%.')
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* ->setParameter('%min%', '3')
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* ->setParameter('%max%', '10')
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* ->setTranslationDomain('number_validation')
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* ->addViolation();
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*
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* @param string|\Stringable $message The error message as a string or a stringable object
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* @param array $parameters The parameters substituted in the error message
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*
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* @return ConstraintViolationBuilderInterface
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*/
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public function buildViolation(string $message, array $parameters = []);
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/**
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* Returns the validator.
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*
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* Useful if you want to validate additional constraints:
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*
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* public function validate($value, Constraint $constraint)
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* {
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* $validator = $this->context->getValidator();
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*
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* $violations = $validator->validate($value, new Length(['min' => 3]));
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*
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* if (count($violations) > 0) {
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* // ...
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* }
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* }
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*
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* @return ValidatorInterface
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*/
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public function getValidator();
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/**
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* Returns the currently validated object.
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*
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* If the validator is currently validating a class constraint, the
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* object of that class is returned. If it is validating a property or
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* getter constraint, the object that the property/getter belongs to is
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* returned.
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*
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* In other cases, null is returned.
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*
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* @return object|null
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*/
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public function getObject();
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/**
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* Sets the currently validated value.
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*
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* @param mixed $value The validated value
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* @param object|null $object The currently validated object
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* @param string $propertyPath The property path to the current value
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*
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* @internal Used by the validator engine. Should not be called by user
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* code.
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*/
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public function setNode($value, ?object $object, MetadataInterface $metadata = null, string $propertyPath);
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/**
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* Sets the currently validated group.
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*
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* @param string|null $group The validated group
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*
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* @internal Used by the validator engine. Should not be called by user
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* code.
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*/
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public function setGroup(?string $group);
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/**
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* Sets the currently validated constraint.
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*
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* @internal Used by the validator engine. Should not be called by user
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* code.
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*/
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public function setConstraint(Constraint $constraint);
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/**
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* Marks an object as validated in a specific validation group.
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*
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* @param string $cacheKey The hash of the object
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* @param string $groupHash The group's name or hash, if it is group
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* sequence
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*
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* @internal Used by the validator engine. Should not be called by user
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* code.
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*/
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public function markGroupAsValidated(string $cacheKey, string $groupHash);
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/**
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* Returns whether an object was validated in a specific validation group.
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*
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* @param string $cacheKey The hash of the object
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* @param string $groupHash The group's name or hash, if it is group
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* sequence
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*
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* @return bool
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*
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* @internal Used by the validator engine. Should not be called by user
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* code.
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*/
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public function isGroupValidated(string $cacheKey, string $groupHash);
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/**
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* Marks a constraint as validated for an object.
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*
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* @param string $cacheKey The hash of the object
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* @param string $constraintHash The hash of the constraint
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*
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* @internal Used by the validator engine. Should not be called by user
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* code.
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*/
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public function markConstraintAsValidated(string $cacheKey, string $constraintHash);
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/**
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* Returns whether a constraint was validated for an object.
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*
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* @param string $cacheKey The hash of the object
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* @param string $constraintHash The hash of the constraint
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*
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* @return bool
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*
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* @internal Used by the validator engine. Should not be called by user
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* code.
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*/
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public function isConstraintValidated(string $cacheKey, string $constraintHash);
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/**
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* Marks that an object was initialized.
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*
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* @param string $cacheKey The hash of the object
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*
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* @internal Used by the validator engine. Should not be called by user
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* code.
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*
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* @see ObjectInitializerInterface
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*/
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public function markObjectAsInitialized(string $cacheKey);
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/**
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* Returns whether an object was initialized.
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*
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* @param string $cacheKey The hash of the object
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*
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* @return bool
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*
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* @internal Used by the validator engine. Should not be called by user
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* code.
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*
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* @see ObjectInitializerInterface
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*/
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public function isObjectInitialized(string $cacheKey);
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/**
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* Returns the violations generated by the validator so far.
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*
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* @return ConstraintViolationListInterface
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*/
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public function getViolations();
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/**
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* Returns the value at which validation was started in the object graph.
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*
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* The validator, when given an object, traverses the properties and
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* related objects and their properties. The root of the validation is the
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* object from which the traversal started.
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*
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* The current value is returned by {@link getValue}.
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*
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* @return mixed
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*/
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public function getRoot();
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/**
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* Returns the value that the validator is currently validating.
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*
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* If you want to retrieve the object that was originally passed to the
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* validator, use {@link getRoot}.
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*
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* @return mixed
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*/
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public function getValue();
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/**
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* Returns the metadata for the currently validated value.
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*
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* With the core implementation, this method returns a
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* {@link Mapping\ClassMetadataInterface} instance if the current value is an object,
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* a {@link Mapping\PropertyMetadata} instance if the current value is
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* the value of a property and a {@link Mapping\GetterMetadata} instance if
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* the validated value is the result of a getter method.
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*
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* If the validated value is neither of these, for example if the validator
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* has been called with a plain value and constraint, this method returns
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* null.
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*
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* @return MetadataInterface|null
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*/
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public function getMetadata();
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/**
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* Returns the validation group that is currently being validated.
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*
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* @return string|null
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*/
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public function getGroup();
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/**
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* Returns the class name of the current node.
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*
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* If the metadata of the current node does not implement
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* {@link Mapping\ClassMetadataInterface} or if no metadata is available for the
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* current node, this method returns null.
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*
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* @return string|null
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*/
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public function getClassName();
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/**
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* Returns the property name of the current node.
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*
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* If the metadata of the current node does not implement
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* {@link PropertyMetadataInterface} or if no metadata is available for the
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* current node, this method returns null.
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*
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* @return string|null
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*/
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public function getPropertyName();
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/**
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* Returns the property path to the value that the validator is currently
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* validating.
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*
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* For example, take the following object graph:
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*
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* <pre>
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* (Person)---($address: Address)---($street: string)
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* </pre>
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*
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* When the <tt>Person</tt> instance is passed to the validator, the
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* property path is initially empty. When the <tt>$address</tt> property
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* of that person is validated, the property path is "address". When
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* the <tt>$street</tt> property of the related <tt>Address</tt> instance
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* is validated, the property path is "address.street".
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*
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* Properties of objects are prefixed with a dot in the property path.
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* Indices of arrays or objects implementing the {@link \ArrayAccess}
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* interface are enclosed in brackets. For example, if the property in
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* the previous example is <tt>$addresses</tt> and contains an array
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* of <tt>Address</tt> instance, the property path generated for the
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* <tt>$street</tt> property of one of these addresses is for example
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* "addresses[0].street".
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*
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* @param string $subPath Optional. The suffix appended to the current
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* property path.
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*
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* @return string The current property path. The result may be an empty
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* string if the validator is currently validating the
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* root value of the validation graph.
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*/
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public function getPropertyPath(string $subPath = '');
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}
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