subcontext

In a hierarchical naming system, we need to represent “folders within folders.” How do we model nested containers where a context (like /usr) contains another full context (like people) that itself can contain bindings?

A subcontext is a context that is contained within another context. For example, /usr/people is a subcontext of /usr. Each subcontext is a full-fledged context in its own right and can contain more bindings or additional subcontexts, enabling tree-structured naming.

1. A subcontext is created within a parent context using createSubcontext()
2. In file system terms, a subcontext is a “subfolder”
3. /usr is a context; people within /usr is a subcontext
4. Subcontexts can be nested arbitrarily deep (/usr/people/ed)
5. Each subcontext implements the full Context interface

• Full context: A subcontext is a complete Context, not a partial one
• Nestable: Can be nested arbitrarily deep
• Tree structure: Forms the hierarchical naming tree
• Created via API: Context.createSubcontext(name)
• Resolved through path: Accessed via compound names

• Built from: JNDI Context — a subcontext is a type of context
• Built from: JNDI Naming Concepts — subcontexts are a core concept
• Related: Compound Name — compound names traverse subcontexts
• Related: JNDI Binding — subcontexts contain bindings
• Builds into: JNDI — JNDI provides subcontext operations

• Destroying subcontexts: May fail if subcontext is not empty
• Circular references: Avoid creating circular subcontext structures
• Provider support: Not all providers support subcontext creation
• Deep hierarchies: Very deep nesting may impact performance