Package org.apache.ignite

## Interface DataRegionMetricsProvider

-     public interface DataRegionMetricsProvider

  This interface provides calculated metrics for data region.

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `long` | `emptyDataPages()` | Calculates empty data pages count for region.
    `long` | `partiallyFilledPagesFreeSpace()` | Calculates free space of partially filled pages for this data region.

- - ### Method Detail

    - #### partiallyFilledPagesFreeSpace

          long partiallyFilledPagesFreeSpace()

      Calculates free space of partially filled pages for this data region. It does not include empty data pages.
      Returns:
        free space in bytes.

    - #### emptyDataPages

          long emptyDataPages()

      Calculates empty data pages count for region. It counts only totally free pages that can be reused (e. g. pages that are contained in reuse bucket of free list).
      Returns:
        empty data pages count.