Package org.apache.druid.segment.nested

Class DictionaryIdLookup

java.lang.Object

org.apache.druid.segment.nested.DictionaryIdLookup

All Implemented Interfaces:

Closeable, AutoCloseable

public final class DictionaryIdLookup
extends Object
implements Closeable

Value to dictionary id lookup, backed with memory mapped dictionaries populated lazily by the supplied DictionaryWriter.

Constructor Summary

Constructors

Constructor	Description
DictionaryIdLookup(String name, File tempBaseDir, DictionaryWriter<String> stringDictionaryWriter, DictionaryWriter<Long> longDictionaryWriter, DictionaryWriter<Double> doubleDictionaryWriter, DictionaryWriter<int[]> arrayDictionaryWriter)

Method Summary

Modifier and Type	Method	Description
void	close()
SmooshedFileMapper	getArrayBufferMapper()
int	getArrayCardinality()
int[]	getArrayValue(int id)
Object	getDictionaryValue(int id)
SmooshedFileMapper	getDoubleBufferMapper()
int	getDoubleCardinality()
SmooshedFileMapper	getLongBufferMapper()
int	getLongCardinality()
SmooshedFileMapper	getStringBufferMapper()
int	getStringCardinality()
int	lookupArray(int[] value)
int	lookupDouble(Double value)
int	lookupLong(Long value)
int	lookupString(String value)

Methods inherited from class java.lang.Object

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

Constructor Detail

DictionaryIdLookup

public DictionaryIdLookup(String name,
                          File tempBaseDir,
                          @Nullable
                          DictionaryWriter<String> stringDictionaryWriter,
                          @Nullable
                          DictionaryWriter<Long> longDictionaryWriter,
                          @Nullable
                          DictionaryWriter<Double> doubleDictionaryWriter,
                          @Nullable
                          DictionaryWriter<int[]> arrayDictionaryWriter)

Method Detail

getArrayValue

public int[] getArrayValue(int id)

getDictionaryValue

@Nullable
public Object getDictionaryValue(int id)

lookupString

public int lookupString(@Nullable
                        String value)

lookupLong

public int lookupLong(@Nullable
                      Long value)

lookupDouble

public int lookupDouble(@Nullable
                        Double value)

lookupArray

public int lookupArray(@Nullable
                       int[] value)

getStringBufferMapper

@Nullable
public SmooshedFileMapper getStringBufferMapper()

getLongBufferMapper

@Nullable
public SmooshedFileMapper getLongBufferMapper()

getDoubleBufferMapper

@Nullable
public SmooshedFileMapper getDoubleBufferMapper()

getArrayBufferMapper

@Nullable
public SmooshedFileMapper getArrayBufferMapper()

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

getStringCardinality

public int getStringCardinality()

getLongCardinality

public int getLongCardinality()

getDoubleCardinality

public int getDoubleCardinality()

getArrayCardinality

public int getArrayCardinality()