org.apache.cassandra.db

Class Keyspace

java.lang.Object

org.apache.cassandra.db.Keyspace

public class Keyspace
extends java.lang.Object

It represents a Keyspace.

Field Summary

Fields

Modifier and Type	Field and Description
static com.google.common.base.Function<java.lang.String,Keyspace>	keyspaceTransformer
KeyspaceMetrics	metric
ViewManager	viewManager
static OpOrder	writeOrder

Method Summary

Modifier and Type	Method and Description
static java.lang.Iterable<Keyspace>	all()
java.util.concurrent.CompletableFuture<?>	apply(Mutation mutation, boolean writeCommitLog)
java.util.concurrent.CompletableFuture<?>	apply(Mutation mutation, boolean writeCommitLog, boolean updateIndexes)
java.util.concurrent.CompletableFuture<?>	apply(Mutation mutation, boolean writeCommitLog, boolean updateIndexes, boolean isClReplay, java.util.concurrent.CompletableFuture<?> future) This method appends a row to the global CommitLog, then updates memtables and indexes.
java.util.concurrent.CompletableFuture<?>	applyFromCommitLog(Mutation mutation)
static Keyspace	clear(java.lang.String keyspaceName)
static Keyspace	clear(java.lang.String keyspaceName, Schema schema)
static void	clearSnapshot(java.lang.String snapshotName, java.lang.String keyspace) Clear all the snapshots for a given keyspace.
void	dropCf(java.util.UUID cfId)
java.util.List<java.util.concurrent.Future<?>>	flush()
java.util.List<SSTableReader>	getAllSSTables(SSTableSet sstableSet)
ColumnFamilyStore	getColumnFamilyStore(java.lang.String cfName)
ColumnFamilyStore	getColumnFamilyStore(java.util.UUID id)
java.util.Collection<ColumnFamilyStore>	getColumnFamilyStores()
KeyspaceMetadata	getMetadata()
java.lang.String	getName()
AbstractReplicationStrategy	getReplicationStrategy()
static java.lang.String	getTimestampedSnapshotName(java.lang.String clientSuppliedName)
java.lang.Iterable<ColumnFamilyStore>	getValidColumnFamilies(boolean allowIndexes, boolean autoAddIndexes, java.lang.String... cfNames)
boolean	hasColumnFamilyStore(java.util.UUID id)
static void	indexPartition(DecoratedKey key, ColumnFamilyStore cfs, java.util.Set<Index> indexes)
void	initCf(CFMetaData metadata, boolean loadSSTables) adds a cf to internal structures, ends up creating disk files).
static Keyspace	mockKS(KeyspaceMetadata metadata)
static java.lang.Iterable<Keyspace>	nonLocalStrategy()
static java.lang.Iterable<Keyspace>	nonSystem()
static Keyspace	open(java.lang.String keyspaceName)
static ColumnFamilyStore	openAndGetStore(CFMetaData cfm)
static Keyspace	openWithoutSSTables(java.lang.String keyspaceName)
static void	removeUnreadableSSTables(java.io.File directory) Removes every SSTable in the directory from the appropriate Tracker's view.
static void	setInitialized()
void	setMetadata(KeyspaceMetadata metadata)
void	snapshot(java.lang.String snapshotName, java.lang.String columnFamilyName) Take a snapshot of the specific column family, or the entire set of column families if columnFamily is null with a given timestamp
boolean	snapshotExists(java.lang.String snapshotName) Check whether snapshots already exists for a given name.
static java.lang.Iterable<Keyspace>	system()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

metric

public final KeyspaceMetrics metric

writeOrder

public static final OpOrder writeOrder

viewManager

public final ViewManager viewManager

keyspaceTransformer

public static final com.google.common.base.Function<java.lang.String,Keyspace> keyspaceTransformer

Method Detail

setInitialized

public static void setInitialized()

open

public static Keyspace open(java.lang.String keyspaceName)

openWithoutSSTables

public static Keyspace openWithoutSSTables(java.lang.String keyspaceName)

clear

public static Keyspace clear(java.lang.String keyspaceName)

clear

public static Keyspace clear(java.lang.String keyspaceName,
                             Schema schema)

openAndGetStore

public static ColumnFamilyStore openAndGetStore(CFMetaData cfm)

removeUnreadableSSTables

public static void removeUnreadableSSTables(java.io.File directory)

Removes every SSTable in the directory from the appropriate Tracker's view.

Parameters:

directory - the unreadable directory, possibly with SSTables in it, but not necessarily.

setMetadata

public void setMetadata(KeyspaceMetadata metadata)

getMetadata

public KeyspaceMetadata getMetadata()

getColumnFamilyStores

public java.util.Collection<ColumnFamilyStore> getColumnFamilyStores()

getColumnFamilyStore

public ColumnFamilyStore getColumnFamilyStore(java.lang.String cfName)

getColumnFamilyStore

public ColumnFamilyStore getColumnFamilyStore(java.util.UUID id)

hasColumnFamilyStore

public boolean hasColumnFamilyStore(java.util.UUID id)

snapshot

public void snapshot(java.lang.String snapshotName,
                     java.lang.String columnFamilyName)
              throws java.io.IOException

Take a snapshot of the specific column family, or the entire set of column families if columnFamily is null with a given timestamp

Parameters:

snapshotName - the tag associated with the name of the snapshot. This value may not be null

columnFamilyName - the column family to snapshot or all on null

Throws:

java.io.IOException - if the column family doesn't exist

getTimestampedSnapshotName

public static java.lang.String getTimestampedSnapshotName(java.lang.String clientSuppliedName)

Parameters:

clientSuppliedName - may be null.

Returns:

the name of the snapshot

snapshotExists

public boolean snapshotExists(java.lang.String snapshotName)

Check whether snapshots already exists for a given name.

Parameters:

snapshotName - the user supplied snapshot name

Returns:

true if the snapshot exists

clearSnapshot

public static void clearSnapshot(java.lang.String snapshotName,
                                 java.lang.String keyspace)

Clear all the snapshots for a given keyspace.

Parameters:

snapshotName - the user supplied snapshot name. It empty or null, all the snapshots will be cleaned

getAllSSTables

public java.util.List<SSTableReader> getAllSSTables(SSTableSet sstableSet)

Returns:

A list of open SSTableReaders

mockKS

public static Keyspace mockKS(KeyspaceMetadata metadata)

dropCf

public void dropCf(java.util.UUID cfId)

initCf

public void initCf(CFMetaData metadata,
                   boolean loadSSTables)

adds a cf to internal structures, ends up creating disk files).

apply

public java.util.concurrent.CompletableFuture<?> apply(Mutation mutation,
                                                       boolean writeCommitLog)

apply

public java.util.concurrent.CompletableFuture<?> apply(Mutation mutation,
                                                       boolean writeCommitLog,
                                                       boolean updateIndexes)

applyFromCommitLog

public java.util.concurrent.CompletableFuture<?> applyFromCommitLog(Mutation mutation)

apply

public java.util.concurrent.CompletableFuture<?> apply(Mutation mutation,
                                                       boolean writeCommitLog,
                                                       boolean updateIndexes,
                                                       boolean isClReplay,
                                                       java.util.concurrent.CompletableFuture<?> future)

This method appends a row to the global CommitLog, then updates memtables and indexes.

Parameters:

mutation - the row to write. Must not be modified after calling apply, since commitlog append may happen concurrently, depending on the CL Executor type.

writeCommitLog - false to disable commitlog append entirely

updateIndexes - false to disable index updates (used by CollationController "defragmenting")

isClReplay - true if caller is the commitlog replayer

getReplicationStrategy

public AbstractReplicationStrategy getReplicationStrategy()

indexPartition

public static void indexPartition(DecoratedKey key,
                                  ColumnFamilyStore cfs,
                                  java.util.Set<Index> indexes)

Parameters:

key - row to index

cfs - ColumnFamily to index partition in

indexes - the indexes to submit the row to

flush

public java.util.List<java.util.concurrent.Future<?>> flush()

getValidColumnFamilies

public java.lang.Iterable<ColumnFamilyStore> getValidColumnFamilies(boolean allowIndexes,
                                                                    boolean autoAddIndexes,
                                                                    java.lang.String... cfNames)
                                                             throws java.io.IOException

Throws:

java.io.IOException

all

public static java.lang.Iterable<Keyspace> all()

nonSystem

public static java.lang.Iterable<Keyspace> nonSystem()

nonLocalStrategy

public static java.lang.Iterable<Keyspace> nonLocalStrategy()

system

public static java.lang.Iterable<Keyspace> system()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getName

public java.lang.String getName()