# Hierarchy For Package org.apache.sysds.runtime.ooc.cache.io

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.sysds.runtime.ooc.cache.io.CloseableQueue<T>
  - org.apache.sysds.runtime.ooc.cache.io.OOCIOHandler.SourceBlockDescriptor
    - org.apache.sysds.runtime.ooc.cache.io.OOCIOHandler.GroupSourceBlockDescriptor
  - org.apache.sysds.runtime.ooc.cache.io.OOCIOHandler.SourceReadRequest
  - org.apache.sysds.runtime.ooc.cache.io.OOCIOHandler.SourceReadResult
  - org.apache.sysds.runtime.ooc.cache.io.OOCMatrixIOHandler (implements org.apache.sysds.runtime.ooc.cache.io.OOCIOHandler)
  - org.apache.sysds.runtime.ooc.cache.io.SpillableObjectRegistry

## Interface Hierarchy

- org.apache.sysds.runtime.ooc.cache.io.OOCIOHandler
- org.apache.sysds.runtime.ooc.cache.io.OOCIOHandler.SourceReadContinuation
- org.apache.sysds.runtime.ooc.cache.io.SpillableObject