org.apache.accumulo.tserver

Class InMemoryMap

java.lang.Object

org.apache.accumulo.tserver.InMemoryMap

public class InMemoryMap
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	InMemoryMap.MemoryIterator

Field Summary

Fields

Modifier and Type	Field and Description
static String	TYPE_DEFAULT_MAP
static String	TYPE_LOCALITY_GROUP_MAP
static String	TYPE_LOCALITY_GROUP_MAP_NATIVE
static String	TYPE_NATIVE_MAP_WRAPPER

Constructor Summary

Constructors

Constructor and Description
InMemoryMap(AccumuloConfiguration config)
InMemoryMap(boolean useNativeMap, String memDumpDir)
InMemoryMap(Map<String,Set<ByteSequence>> lggroups, boolean useNativeMap, String memDumpDir)

Method Summary

Modifier and Type	Method and Description
SortedKeyValueIterator<Key,Value>	compactionIterator()
void	delete(long waitTime)
long	estimatedSizeInBytes() Returns a long representing the size of the InMemoryMap
String	getMapType() Description of the type of SimpleMap that is created.
long	getNumEntries()
void	mutate(List<Mutation> mutations) Applies changes to a row in the InMemoryMap
InMemoryMap.MemoryIterator	skvIterator()

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_NATIVE_MAP_WRAPPER

public static final String TYPE_NATIVE_MAP_WRAPPER

See Also:

Constant Field Values

TYPE_DEFAULT_MAP

public static final String TYPE_DEFAULT_MAP

See Also:

Constant Field Values

TYPE_LOCALITY_GROUP_MAP

public static final String TYPE_LOCALITY_GROUP_MAP

See Also:

Constant Field Values

TYPE_LOCALITY_GROUP_MAP_NATIVE

public static final String TYPE_LOCALITY_GROUP_MAP_NATIVE

See Also:

Constant Field Values

Constructor Detail

InMemoryMap

public InMemoryMap(boolean useNativeMap,
                   String memDumpDir)

InMemoryMap

public InMemoryMap(Map<String,Set<ByteSequence>> lggroups,
                   boolean useNativeMap,
                   String memDumpDir)

InMemoryMap

public InMemoryMap(AccumuloConfiguration config)
            throws LocalityGroupUtil.LocalityGroupConfigurationError

Throws:

LocalityGroupUtil.LocalityGroupConfigurationError

Method Detail

getMapType

public String getMapType()

Description of the type of SimpleMap that is created.

If no locality groups are present, the SimpleMap is either TYPE_DEFAULT_MAP or TYPE_NATIVE_MAP_WRAPPER. If there is one more locality groups, then the InMemoryMap has an array for simple maps that either contain either TYPE_LOCALITY_GROUP_MAP which contains DefaultMaps or TYPE_LOCALITY_GROUP_MAP_NATIVE which contains NativeMapWrappers.

Returns:

String that describes the Map type

mutate

public void mutate(List<Mutation> mutations)

Applies changes to a row in the InMemoryMap

estimatedSizeInBytes

public long estimatedSizeInBytes()

Returns a long representing the size of the InMemoryMap

Returns:

bytesInMemory

getNumEntries

public long getNumEntries()

skvIterator

public InMemoryMap.MemoryIterator skvIterator()

compactionIterator

public SortedKeyValueIterator<Key,Value> compactionIterator()

delete

public void delete(long waitTime)