Package org.apache.cassandra.io.sstable.format

Class CompressionInfoComponent

java.lang.Object

org.apache.cassandra.io.sstable.format.CompressionInfoComponent

public class CompressionInfoComponent
extends java.lang.Object

Constructor Summary

Constructors

Constructor	Description
CompressionInfoComponent()

Method Summary

Modifier and Type	Method	Description
static CompressionMetadata	load(Descriptor descriptor)
static CompressionMetadata	loadIfExists(Descriptor descriptor)
static CompressionMetadata	maybeLoad(Descriptor descriptor, java.util.Set<Component> components)
static void	verifyCompressionInfoExistenceIfApplicable(Descriptor descriptor, java.util.Set<Component> actualComponents)	Best-effort checking to verify the expected compression info component exists, according to the TOC file.

Methods inherited from class java.lang.Object

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

Constructor Detail

CompressionInfoComponent

public CompressionInfoComponent()

Method Detail

maybeLoad

public static CompressionMetadata maybeLoad(Descriptor descriptor,
                                            java.util.Set<Component> components)

loadIfExists

public static CompressionMetadata loadIfExists(Descriptor descriptor)

load

public static CompressionMetadata load(Descriptor descriptor)

verifyCompressionInfoExistenceIfApplicable

public static void verifyCompressionInfoExistenceIfApplicable(Descriptor descriptor,
                                                              java.util.Set<Component> actualComponents)
                                                       throws CorruptSSTableException,
                                                              FSReadError

Best-effort checking to verify the expected compression info component exists, according to the TOC file. The verification depends on the existence of TOC file. If absent, the verification is skipped.

Parameters:

descriptor -

actualComponents - actual components listed from the file system.

Throws:

CorruptSSTableException - if TOC expects compression info but not found from disk.

FSReadError - if unable to read from TOC file.