Package org.apache.drill.exec.planner.sql

Class ExpandingConcurrentMap<KEY,VALUE>

java.lang.Object

org.apache.drill.exec.planner.sql.ExpandingConcurrentMap<KEY,VALUE>

Type Parameters:

KEY - The key in the map.

VALUE - The value in the map.

All Implemented Interfaces:

ConcurrentMap<KEY,VALUE>, Map<KEY,VALUE>

public class ExpandingConcurrentMap<KEY,VALUE>
extends Object
implements ConcurrentMap<KEY,VALUE>

A special type of concurrent map which attempts to create an object before returning that it does not exist. It will also provide the same functionality on it's keyset.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ExpandingConcurrentMap.MapValueFactory<KEY,VALUE>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor	Description
ExpandingConcurrentMap(ExpandingConcurrentMap.MapValueFactory<KEY,VALUE> fac)	Create a new ExpandingConcurrentMap.

Method Summary

Modifier and Type	Method	Description
boolean	alreadyContainsKey(Object k)
void	clear()
boolean	containsKey(Object k)
boolean	containsValue(Object value)
Set<Map.Entry<KEY,VALUE>>	entrySet()
VALUE	get(Object key)
boolean	isEmpty()
Set<KEY>	keySet()
VALUE	put(KEY key, VALUE value)
void	putAll(Map<? extends KEY,? extends VALUE> m)
VALUE	putIfAbsent(KEY key, VALUE value)
VALUE	remove(Object key)
boolean	remove(Object key, Object value)
VALUE	replace(KEY key, VALUE value)
boolean	replace(KEY key, VALUE oldValue, VALUE newValue)
int	size()
Collection<VALUE>	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.concurrent.ConcurrentMap

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, replaceAll

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Details

ExpandingConcurrentMap

public ExpandingConcurrentMap(ExpandingConcurrentMap.MapValueFactory<KEY,VALUE> fac)

Create a new ExpandingConcurrentMap.

Parameters:

fac - The object factory responsible for attempting to generate object instances.

Method Details

size

public int size()

Specified by:

size in interface Map<KEY,VALUE>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<KEY,VALUE>

alreadyContainsKey

public boolean alreadyContainsKey(Object k)

containsKey

public boolean containsKey(Object k)

Specified by:

containsKey in interface Map<KEY,VALUE>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<KEY,VALUE>

get

public VALUE get(Object key)

Specified by:

get in interface Map<KEY,VALUE>

put

public VALUE put(KEY key,
 VALUE value)

Specified by:

put in interface Map<KEY,VALUE>

remove

public VALUE remove(Object key)

Specified by:

remove in interface Map<KEY,VALUE>

putAll

public void putAll(Map<? extends KEY,? extends VALUE> m)

Specified by:

putAll in interface Map<KEY,VALUE>

clear

public void clear()

Specified by:

clear in interface Map<KEY,VALUE>

keySet

public Set<KEY> keySet()

Specified by:

keySet in interface Map<KEY,VALUE>

values

public Collection<VALUE> values()

Specified by:

values in interface Map<KEY,VALUE>

entrySet

public Set<Map.Entry<KEY,VALUE>> entrySet()

Specified by:

entrySet in interface Map<KEY,VALUE>

putIfAbsent

public VALUE putIfAbsent(KEY key,
 VALUE value)

Specified by:

putIfAbsent in interface ConcurrentMap<KEY,VALUE>

Specified by:

putIfAbsent in interface Map<KEY,VALUE>

remove

public boolean remove(Object key,
 Object value)

Specified by:

remove in interface ConcurrentMap<KEY,VALUE>

Specified by:

remove in interface Map<KEY,VALUE>

replace

public boolean replace(KEY key,
 VALUE oldValue,
 VALUE newValue)

Specified by:

replace in interface ConcurrentMap<KEY,VALUE>

Specified by:

replace in interface Map<KEY,VALUE>

replace

public VALUE replace(KEY key,
 VALUE value)

Specified by:

replace in interface ConcurrentMap<KEY,VALUE>

Specified by:

replace in interface Map<KEY,VALUE>