ObjectIdentityInterface

interface ObjectIdentityInterface

Represents the identity of an individual domain object instance.

bool	equals(ObjectIdentityInterface $identity) We specifically require this method so we can check for object equality explicitly, and do not have to rely on referencial equality instead.
string	getIdentifier() Obtains a unique identifier for this object. The identifier must not be re-used for other objects with the same type.
string	getType() Returns a type for the domain object. Typically, this is the PHP class name.

We specifically require this method so we can check for object equality explicitly, and do not have to rely on referencial equality instead.

Though in most cases, both checks should result in the same outcome.

Referential Equality: $object1 === $object2 Example for Object Equality: $object1->getId() === $object2->getId()

$identity

bool

Obtains a unique identifier for this object. The identifier must not be re-used for other objects with the same type.

string

cannot return null

Returns a type for the domain object. Typically, this is the PHP class name.

string

cannot return null

Links:

doc_Symfony

2016-10-28 06:25:06

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