Sergey Chugunov created IGNITE-15817:
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Summary: [Native Persistence 3.0] PageIOs abstractions porting
Key: IGNITE-15817
URL: https://issues.apache.org/jira/browse/IGNITE-15817
Project: Ignite
Issue Type: Task
Components: persistence
Reporter: Sergey Chugunov
Fix For: 3.0
h2. Goal
We want to keep PageIO abstraction in general but refine it, address some flaws
and repay tech debt that has built up in this subsystem.
h2. Items to pay attention to
Abstract parent PageIO class is overloaded with functionality (bad smell from
static methods etc), responsibilities split and minor redesign is needed.
Retrieving version of a particular page requires complicated machinery, it
should be simplified.
PageMetaIO hierarchy flattening - responsibilities of intermediate classes
should be unified and grouped in a lower hierarchy.
Old versions cleanup: versions history shrinking is safe as no binary
compatibility between 2.x and 3.0.
Reconsider approaches to support versioning and binary compatibility. Classes
with names like V2, V3 look questionable, we may come up with other naming or
completely different approach.
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