org.apache.ignite.internal.processors.cache.persistence.tree.io

Interface CompactablePageIO

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, MvccCacheIdAwareDataInnerIO, MvccCacheIdAwareDataLeafIO, MvccDataInnerIO, MvccDataLeafIO, MvccInlineInnerIO, MvccInlineLeafIO, MvccInnerIO, MvccLeafIO, PagesListNodeIO, PendingEntryInnerIO, PendingEntryLeafIO, SimpleDataPageIO, TxLogInnerIO, TxLogLeafIO

public interface CompactablePageIO

Page IO that supports compaction.

Method Summary

Modifier and Type	Method and 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.