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The preconditions are: There is a constant defined to hold the maximum low value.The value must be greater than zero. A suitable value could be 1000 or 32767.; There is a variable defined to hold the currently assigned high value and it is assigned the value 0 (zero).
A UML class diagram for a strongly typed identifier. A strongly typed identifier is user-defined data type which serves as an identifier or key that is strongly typed.This is a solution to the "primitive obsession" code smell as mentioned by Martin Fowler.
A Universally Unique Identifier (UUID) is a 128-bit label used to uniquely identify objects in computer systems. The term Globally Unique Identifier (GUID) is also used, mostly in Microsoft systems. [1] [2] When generated according to the standard methods, UUIDs are, for practical purposes, unique.
In computing, object identifiers or OIDs are an identifier mechanism standardized by the International Telecommunication Union (ITU) and ISO/IEC for naming any object, concept, or "thing" with a globally unambiguous persistent name.
Base64 encoding can be helpful when fairly lengthy identifying information is used in an HTTP environment. For example, a database persistence framework for Java objects might use Base64 encoding to encode a relatively large unique id (generally 128-bit UUIDs) into a string for use as an HTTP parameter in HTTP forms or HTTP GET URLs. Also, many ...
serial numbers, assigned incrementally or sequentially, by a central authority or accepted reference. random numbers, selected from a number space much larger than the maximum (or expected) number of objects to be identified. Although not really unique, some identifiers of this type may be appropriate for identifying objects in many practical ...
Set_Attribute: Bind an attribute name to a value (replacing any existing binding to that name) Delete_Attribute: Unbind an attribute name from a value and remove the name from the u-form; Get_Attribute: Find the value (if any) that is bound to a name. List_Attributes: Find all names that have a non-empty value.
The array, set and dictionary binary types are made up of pointers - the objref and keyref entries - that index into an object table in the file. This means that binary plists can capture the fact that - for example - a separate array and dictionary serialized into a file both have the same data element stored in them.