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Concurrent::Collection::NonConcurrentPriorityQueue < NonConcurrentPriorityQueueImplementation
| Use Case | Command | Description |
|---|---|---|
| 🆕 Create a priority queue | queue = Concurrent::Collection::NonConcurrentPriorityQueue.new | 🎯 Creates a new non‑thread‑safe priority queue (default order: highest first) |
| ➕ Add an element | queue.push(element) | 📥 Inserts an element at the correct position based on priority |
| ⬆️ Remove highest priority element | element = queue.pop | 🗑️ Removes and returns the element with the highest priority |
| 👁️ Peek at highest priority | queue.peek | 🔍 Returns the highest priority element without removing it |
| ❓ Check if empty | queue.empty? | ✅ Returns true if the queue has no elements |
| 📏 Get size | queue.length | 🔢 Returns the number of elements in the queue |
| 🧹 Clear the queue | queue.clear | 🚮 Removes all elements |
🎯 A queue collection in which the elements are sorted based on their comparison (spaceship) operator <=>. Items are added to the queue at a position relative to their priority. On removal the element with the "highest" priority is removed. By default the sort order is from highest to lowest, but a lowest‑to‑highest sort order can be set on construction.
📚 The API is based on the Queue class from the Ruby standard library.
⚙️ The pure Ruby implementation, RubyNonConcurrentPriorityQueue uses a heap algorithm stored in an array. The algorithm is based on the work of Robert Sedgewick and Kevin Wayne.
☕ The JRuby native implementation is a thin wrapper around the standard library java.util.NonConcurrentPriorityQueue.
🔄 When running under JRuby the class NonConcurrentPriorityQueue extends JavaNonConcurrentPriorityQueue. When running under all other interpreters it extends RubyNonConcurrentPriorityQueue.
⚠️ Note: This implementation is not thread safe.
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2026-07-29 18:42 @216.73.216.177
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