Package com.ibm.wala.util.collections

Class BimodalMap<K,V>

java.lang.Object

com.ibm.wala.util.collections.BimodalMap<K,V>

All Implemented Interfaces:

Map<K,V>

public class BimodalMap<K,V>
extends Object
implements Map<K,V>

This implementation of Map chooses between one of two implementations, depending on the size of the map.

Nested Class Summary

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

Map.Entry<K extends Object,V extends Object>

Constructor Summary

Constructors

Constructor	Description
BimodalMap(int cutoff)

Method Summary

Modifier and Type	Method	Description
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,V>>	entrySet()
@Nullable V	get(Object key)
boolean	isEmpty()
Set<K>	keySet()
@Nullable V	put(K key, V value)
void	putAll(Map<? extends K,? extends V> t)
@Nullable V	remove(Object key)
int	size()
Collection<V>	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.Map

compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Details

BimodalMap

public BimodalMap(int cutoff)

Parameters:

cutoff - the map size at which to switch from the small map implementation to the large map implementation

Method Details

size

public int size()

Specified by:

size in interface Map<K,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,V>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,V>

get

public @Nullable V get(Object key)

Specified by:

get in interface Map<K,V>

put

public @Nullable V put(K key,
 V value)

Specified by:

put in interface Map<K,V>

remove

public @Nullable V remove(Object key)

Specified by:

remove in interface Map<K,V>

Throws:

UnsupportedOperationException - if the backingStore doesn't support remove

putAll

public void putAll(Map<? extends K,? extends V> t)
            throws UnsupportedOperationException

Specified by:

putAll in interface Map<K,V>

Throws:

UnsupportedOperationException

clear

public void clear()

Specified by:

clear in interface Map<K,V>

keySet

public Set<K> keySet()

Specified by:

keySet in interface Map<K,V>

values

public Collection<V> values()

Specified by:

values in interface Map<K,V>

entrySet

public Set<Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface Map<K,V>

Throws:

UnimplementedError - if the backingStore implementation does