@LazySorted - Collections that optimize themselves. How useful?

Tao Dad — Thu, 09 Oct 2025 14:12:24 +0000

I've been experimenting with a concept I call "lazy sorting" and would love some feedback.

Have you had collections that might benefit from being sorted, but you don't want to pay the upfront cost or manage the complexity?

The Idea
@LazySorted - An annotation that makes collections gradually optimize themselves based on actual usage:

java

@LazySorted(
    priority = Priority.HIGH,
    readCount = 10000,      
// Must be sorted by 10,000th read
    cpuThreshold = 0.3      
// Only sort when CPU < 30%
)

private List hotProducts;

The collection slowly sorts itself during idle cycles, making frequently accessed items faster to find over time

How It Works

Tracks access patterns behind the scenes
Performs micro-optimizations during low-load periods
No big sorting spikes - gradual improvement
Implemented as a standard List - drop-in replacement

Use Cases I'm Thinking

Long-running caches
Configuration data
Read-heavy reference data

Anywhere you'd eventually sort, but don't need it immediately

My Questions:

Has anyone actually needed this in production?
Is this solving a real problem or just adding complexity?
Would you use this, or just stick with occasional Collections.sort()?
What use cases would make this actually valuable?

Appreciate your honest feedback. Many thanks!

DEV Community: Tao Dad

@LazySorted - Collections that optimize themselves. How useful?