@InterfaceAudience.Private public class LRUDictionary extends Object implements Dictionary
(2 ^ 15) * 5 (Regionname, Row key, CF, Column qual, table) * 100 bytes
(these are some big names) = ~16MB.
If you want to get silly, even at 1kb entries, it maxes out at 160 megabytes.| Modifier and Type | Class and Description |
|---|---|
(package private) static class |
LRUDictionary.BidirectionalLRUMap |
| Modifier and Type | Field and Description |
|---|---|
(package private) LRUDictionary.BidirectionalLRUMap |
backingStore |
NOT_IN_DICTIONARY| Constructor and Description |
|---|
LRUDictionary() |
| Modifier and Type | Method and Description |
|---|---|
short |
addEntry(byte[] data,
int offset,
int length)
Adds an entry to the dictionary.
|
void |
clear()
Flushes the dictionary, empties all values.
|
short |
findEntry(byte[] data,
int offset,
int length)
Finds the index of an entry.
|
byte[] |
getEntry(short idx)
Gets an entry from the dictionary.
|
void |
init(int initialSize) |
LRUDictionary.BidirectionalLRUMap backingStore
public byte[] getEntry(short idx)
DictionarygetEntry in interface Dictionaryidx - index of the entrypublic void init(int initialSize)
init in interface Dictionarypublic short findEntry(byte[] data,
int offset,
int length)
DictionaryfindEntry in interface Dictionarydata - the byte array that we're looking upoffset - Offset into data to add to Dictionary.length - Length beyond offset that comprises entry; must be > 0.Dictionary.NOT_IN_DICTIONARY if not foundpublic short addEntry(byte[] data,
int offset,
int length)
DictionaryDictionary.findEntry(byte[], int, int)} to add without duplicating
dictionary entries.addEntry in interface Dictionarydata - the entry to addoffset - Offset into data to add to Dictionary.length - Length beyond offset that comprises entry; must be > 0.public void clear()
Dictionaryclear in interface DictionaryCopyright © 2007–2019 The Apache Software Foundation. All rights reserved.