@Property Attributes

Attribute	Description
getter=	Use a custom name for the getter method.
setter=	Use a custom name for the setter method.
readonly	Don’t synthesize a setter method.
nonatomic	Don’t guarantee the integrity of accessors in a multi-threaded environment. This is more efficient than the default atomic behavior.
strong	Create an owning relationship between the property and the assigned value. This is the default for object properties.
weak	Create a non-owning relationship between the property and the assigned value. Use this to prevent retain cycles.
copy	Create a copy of the assigned value instead of referencing the existing instance. Reference