Package org.apache.cassandra.io.sstable
Interface SSTableId
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- All Known Implementing Classes:
SequenceBasedSSTableId
,UUIDBasedSSTableId
public interface SSTableId
Represents a unique identifier in the sstable descriptor filename. This ensures each sstable file uniqueness for the certain table on a single node. However, new implementations should ensure the uniqueness across the entire cluster. The legacy implementation which does not satisfy cluster-wide uniqueness will be deprecated and eventually removed.A new implementation must adhere to the following invariants: - Must be locally sortable - that is, the comparison must reflect the comparison of generation times of identifiers generated on the same node - String representation must *not* include the
Descriptor.FILENAME_SEPARATOR
character, seeDescriptor.fromFileWithComponent(File)
- must be case-insensitive because the sstables can be stored on case-insensitive file system
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Nested Class Summary
Nested Classes Modifier and Type Interface Description static interface
SSTableId.Builder<T extends SSTableId>
Builder that can create instances of certain implementation ofSSTableId
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.nio.ByteBuffer
asBytes()
Creates a byte format of the identifier that can be parsed bySSTableId.Builder.fromBytes(ByteBuffer)
java.lang.String
toString()
Creates a String format of the identifier that can be parsed bySSTableId.Builder.fromString(String)
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Method Detail
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asBytes
java.nio.ByteBuffer asBytes()
Creates a byte format of the identifier that can be parsed bySSTableId.Builder.fromBytes(ByteBuffer)
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toString
java.lang.String toString()
Creates a String format of the identifier that can be parsed bySSTableId.Builder.fromString(String)
Must not contain any
Descriptor.FILENAME_SEPARATOR
character as it is used in the Descriptor seeDescriptor.fromFileWithComponent(File)
- Overrides:
toString
in classjava.lang.Object
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