Podobiekt

Podobiekt is a term used in information technology to denote an object that is embedded within or owned by another object. It represents a component or sub-entity within a larger data model or object graph.

In software engineering, podobiekt typically refers to a member object or a nested object within a parent object's structure. The concept supports composition, whereby complex objects are assembled from simpler parts, rather than being derived solely by inheritance.

Characteristics include ownership and lifecycle management tied to the parent. A podobiekt may have its own properties and behavior but is often created, modified, or deleted in concert with the containing object, and serialized as part of the parent's state.

Examples: In JSON, a nested object such as { "user": { "name": "Ada", "address": { "city": "Kraków" } } } contains an address as a podobiekt of user. In object-oriented languages, a class Person might hold an Address field treated as a podobiekt.

Design considerations include preferring composition for modularity and reuse, while avoiding excessive nesting that increases complexity and performance costs. Determining ownership and lifecycle boundaries is important for correct serialization and persistence.

See also: subobject, composition, nested data structure, object graph.