org.apache.hudi.metadata

Class HoodieMetadataLogRecordReader

java.lang.Object

org.apache.hudi.metadata.HoodieMetadataLogRecordReader

All Implemented Interfaces:

Closeable, AutoCloseable

@ThreadSafe
public class HoodieMetadataLogRecordReader
extends Object
implements Closeable

Metadata log-block records reading implementation, internally relying on HoodieMergedLogRecordScanner to merge corresponding Metadata Table's delta log-blocks sequence

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HoodieMetadataLogRecordReader.Builder Builder used to build HoodieMetadataMergedLogRecordScanner.

Method Summary

Modifier and Type	Method and Description
void	close()
Map<String,List<HoodieRecord<HoodieMetadataPayload>>>	getAllRecordsByKeys(List<String> sortedKeys)
List<HoodieRecord<HoodieMetadataPayload>>	getRecords()
Map<String,HoodieRecord<HoodieMetadataPayload>>	getRecordsByKeyPrefixes(List<String> sortedKeyPrefixes)
Map<String,HoodieRecord<HoodieMetadataPayload>>	getRecordsByKeys(List<String> sortedKeys) Fetches records identified by the provided list of keys in case these are present in the delta-log blocks
static HoodieMetadataLogRecordReader.Builder	newBuilder(String partitionName) Returns the builder for HoodieMetadataMergedLogRecordScanner.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

newBuilder

public static HoodieMetadataLogRecordReader.Builder newBuilder(String partitionName)

Returns the builder for HoodieMetadataMergedLogRecordScanner.

getRecords

public List<HoodieRecord<HoodieMetadataPayload>> getRecords()

getRecordsByKeyPrefixes

public Map<String,HoodieRecord<HoodieMetadataPayload>> getRecordsByKeyPrefixes(List<String> sortedKeyPrefixes)

getRecordsByKeys

public Map<String,HoodieRecord<HoodieMetadataPayload>> getRecordsByKeys(List<String> sortedKeys)

Fetches records identified by the provided list of keys in case these are present in the delta-log blocks

getAllRecordsByKeys

public Map<String,List<HoodieRecord<HoodieMetadataPayload>>> getAllRecordsByKeys(List<String> sortedKeys)

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException