CompactablePageIO (Ignite 2.17.0)

All Known Implementing Classes:

AbstractDataInnerIO, AbstractDataLeafIO, AbstractDataPageIO, AbstractInlineInnerIO, AbstractInlineLeafIO, AbstractInnerIO, AbstractLeafIO, AbstractPendingEntryInnerIO, AbstractPendingEntryLeafIO, BPlusInnerIO, BPlusIO, BPlusLeafIO, CacheIdAwareDataInnerIO, CacheIdAwareDataLeafIO, CacheIdAwarePendingEntryInnerIO, CacheIdAwarePendingEntryLeafIO, DataInnerIO, DataLeafIO, DataPageIO, IndexStorageImpl.MetaStoreInnerIO, IndexStorageImpl.MetaStoreLeafIO, InlineInnerIO, InlineLeafIO, InnerIO, LeafIO, MetastorageInnerIO, MetastorageLeafIO, MetastoreDataPageIO, PagesListNodeIO, PendingEntryInnerIO, PendingEntryLeafIO, SimpleDataPageIO
```
public interface CompactablePageIO
```
Page IO that supports compaction.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`compactPage(ByteBuffer page, ByteBuffer out, int pageSize)`	Compacts page contents to the output buffer.
`void`	`restorePage(ByteBuffer compactPage, int pageSize)`	Restores the original page in place.

- Method Detail
  - compactPage
```
void compactPage(ByteBuffer page,
                 ByteBuffer out,
                 int pageSize)
```
    Compacts page contents to the output buffer. Implementation must not change contents, position and limit of the original page buffer.
    
    Parameters:
    
    page - Page buffer.
    
    out - Output buffer.
    
    pageSize - Page size.
  - restorePage
```
void restorePage(ByteBuffer compactPage,
                 int pageSize)
```
    Restores the original page in place.
    
    Parameters:
    
    compactPage - Compact page.
    
    pageSize - Page size.