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https://issues.apache.org/jira/browse/HBASE-18825?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang updated HBASE-18825:
------------------------------
Release Note:
Cleanup the StoreFile interface.
The metadata keys are moved to HStoreFile.
These methods are removed:
CacheConfig getCacheConf();
byte[] getMetadataValue(byte[] key);
boolean isCompactedAway();
boolean isReferencedInReads();
void initReader() throws IOException;
StoreFileScanner getPreadScanner(boolean cacheBlocks, long readPt, long
scannerOrder, boolean canOptimizeForNonNullColumn);
StoreFileScanner getStreamScanner(boolean canUseDropBehind, boolean
cacheBlocks, boolean isCompaction, long readPt, long scannerOrder, boolean
canOptimizeForNonNullColumn) throws IOException;
StoreFileReader getReader();
void closeReader(boolean evictOnClose) throws IOException;
void markCompactedAway();
void deleteReader() throws IOException;
Notice that these methods are still available in HStoreFile.
And the return value of getFirstKey and getLastKey are changed from Cell to
Optional<Cell> to better indicate that they may not be available.
was:
Cleanup the StoreFile interface.
The metadata keys are moved to HStoreFile.
These methods are removed:
CacheConfig getCacheConf();
byte[] getMetadataValue(byte[] key);
boolean isCompactedAway();
boolean isReferencedInReads();
void initReader() throws IOException;
StoreFileScanner getPreadScanner(boolean cacheBlocks, long readPt, long
scannerOrder, boolean canOptimizeForNonNullColumn);
StoreFileScanner getStreamScanner(boolean canUseDropBehind, boolean
cacheBlocks, boolean isCompaction, long readPt, long scannerOrder, boolean
canOptimizeForNonNullColumn) throws IOException;
StoreFileReader getReader();
void closeReader(boolean evictOnClose) throws IOException;
void markCompactedAway();
void deleteReader() throws IOException;
Notice that they are still available in HStoreFile. And the return value of
getFirstKey and getLastKey are changed from Cell to Optional<Cell> to better
indicate that they may not be available.
> Use HStoreFile instead of StoreFile in our own code base and remove
> unnecessary methods in StoreFile interface
> --------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-18825
> URL: https://issues.apache.org/jira/browse/HBASE-18825
> Project: HBase
> Issue Type: Sub-task
> Components: Coprocessors
> Affects Versions: 3.0.0, 2.0.0-alpha-3
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Fix For: 3.0.0, 2.0.0-alpha-4
>
> Attachments: HBASE-18825.patch, HBASE-18825-v1.patch,
> HBASE-18825-v2.patch, HBASE-18825-v3.patch, HBASE-18825-v3.patch,
> HBASE-18825-v4.patch, HBASE-18825-v5.patch, HBASE-18825-v6.patch
>
>
> Use generic types to avoid too many casts.
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