org.apache.cassandra.db
Class Table

java.lang.Object
  org.apache.cassandra.db.Table

public class Table
extends java.lang.Object

Nested Class Summary

class

Table.IndexBuilder

Field Summary

java.lang.String	name
static java.lang.String	SYSTEM_TABLE

Method Summary

static java.lang.Iterable<Table>	all()
void	apply(RowMutation mutation, java.lang.Object serializedMutation, boolean writeCommitLog) This method adds the row to the Commit Log associated with this table.
static void	cleanupIndexEntry(ColumnFamilyStore cfs, java.nio.ByteBuffer key, IColumn column)
static Table	clear(java.lang.String table)
void	clearSnapshot() Clear all the snapshots for a given table.
Table.IndexBuilder	createIndexBuilder(ColumnFamilyStore cfs, java.util.SortedSet<java.nio.ByteBuffer> columns, ReducingKeyIterator iter)
void	createReplicationStrategy(KSMetaData ksm)
void	dropCf(java.lang.Integer cfId)
java.util.List<java.util.concurrent.Future<?>>	flush()
java.util.List<SSTableReader>	getAllSSTables()
ColumnFamilyStore	getColumnFamilyStore(java.lang.String cfName)
java.util.Collection<ColumnFamilyStore>	getColumnFamilyStores()
java.lang.String	getDataFileLocation(long expectedCompactedFileSize)
AbstractReplicationStrategy	getReplicationStrategy()
Row	getRow(QueryFilter filter)
static java.lang.String	getSnapshotPath(java.lang.String dataDirPath, java.lang.String tableName, java.lang.String snapshotName)
static java.lang.String	getTimestampedSnapshotName(java.lang.String clientSuppliedName)
void	initCf(java.lang.Integer cfId, java.lang.String cfName) adds a cf to internal structures, ends up creating disk files).
static Table	open(java.lang.String table)
void	renameCf(java.lang.Integer cfId, java.lang.String newName) basically a combined drop and add
void	snapshot(java.lang.String clientSuppliedName) Take a snapshot of the entire set of column families with a given timestamp.
java.lang.String	toString()
void	truncate(java.lang.String cfname) Performs a synchronous truncate operation, effectively deleting all data from the column family cfname

Methods inherited from class java.lang.Object

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

Field Detail

SYSTEM_TABLE

public static final java.lang.String SYSTEM_TABLE

See Also:

Constant Field Values

name

public final java.lang.String name

Method Detail

open

public static Table open(java.lang.String table)

clear

public static Table clear(java.lang.String table)
                   throws java.io.IOException

Throws:

java.io.IOException

getColumnFamilyStores

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

getColumnFamilyStore

public ColumnFamilyStore getColumnFamilyStore(java.lang.String cfName)

snapshot

public void snapshot(java.lang.String clientSuppliedName)

Take a snapshot of the entire set of column families with a given timestamp.

Parameters:

clientSuppliedName - the tag associated with the name of the snapshot. This value can be null.

getTimestampedSnapshotName

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

Parameters:

clientSuppliedName; - may be null.

Returns:

clearSnapshot

public void clearSnapshot()
                   throws java.io.IOException

Clear all the snapshots for a given table.

Throws:

java.io.IOException

getAllSSTables

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

Returns:

A list of open SSTableReaders (TODO: ensure that the caller doesn't modify these).

createReplicationStrategy

public void createReplicationStrategy(KSMetaData ksm)
                               throws ConfigurationException

Throws:

ConfigurationException

dropCf

public void dropCf(java.lang.Integer cfId)
            throws java.io.IOException

Throws:

java.io.IOException

initCf

public void initCf(java.lang.Integer cfId,
                   java.lang.String cfName)

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

renameCf

public void renameCf(java.lang.Integer cfId,
                     java.lang.String newName)
              throws java.io.IOException

basically a combined drop and add

Throws:

java.io.IOException

getRow

public Row getRow(QueryFilter filter)
           throws java.io.IOException

Throws:

java.io.IOException

apply

public void apply(RowMutation mutation,
                  java.lang.Object serializedMutation,
                  boolean writeCommitLog)
           throws java.io.IOException

This method adds the row to the Commit Log associated with this table. Once this happens the data associated with the individual column families is also written to the column family store's memtable.

Throws:

java.io.IOException

cleanupIndexEntry

public static void cleanupIndexEntry(ColumnFamilyStore cfs,
                                     java.nio.ByteBuffer key,
                                     IColumn column)

createIndexBuilder

public Table.IndexBuilder createIndexBuilder(ColumnFamilyStore cfs,
                                             java.util.SortedSet<java.nio.ByteBuffer> columns,
                                             ReducingKeyIterator iter)

getReplicationStrategy

public AbstractReplicationStrategy getReplicationStrategy()

flush

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

Throws:

java.io.IOException

getDataFileLocation

public java.lang.String getDataFileLocation(long expectedCompactedFileSize)

getSnapshotPath

public static java.lang.String getSnapshotPath(java.lang.String dataDirPath,
                                               java.lang.String tableName,
                                               java.lang.String snapshotName)

all

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

truncate

public void truncate(java.lang.String cfname)
              throws java.lang.InterruptedException,
                     java.util.concurrent.ExecutionException,
                     java.io.IOException

Performs a synchronous truncate operation, effectively deleting all data from the column family cfname

Parameters:

cfname -

Throws:

java.io.IOException

java.util.concurrent.ExecutionException

java.lang.InterruptedException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object