Exception: Rubydex::StaleQueryResultError

Inherits:

QueryError

• Object
• StandardError
• Error
• QueryError
• Rubydex::StaleQueryResultError

Defined in:

lib/rubydex/errors.rb

Overview

Raised when a query result names a node that the graph no longer holds, because the graph changed after the query ran. Reading the rows would silently turn that column from a Declaration, Definition, or Document handle into a plain String, so it raises instead. render, columns, size, and empty? still work, because they read the executed result set and never touch the graph.

The check runs while a row is built, so it covers the rows that a walk has not reached yet. Two cases fall outside it:

• A handle that a walk already handed out. Such a handle resolves against the graph on each call, so a later change to the graph can make it stale. Handles from Graph#[] share that property. This error says nothing about them.
• A re-index that keeps the ids. A declaration id comes from the name, so a file indexed again under the same names still resolves, and this error does not fire, even though the definitions and ancestors behind that name may differ.