Package jodd.json

Class LazyMap

java.lang.Object

java.util.AbstractMap

jodd.json.LazyMap

All Implemented Interfaces:

Map

public class LazyMap
extends AbstractMap

This map only builds once you ask for a key for the first time. It is designed to not incur the overhead of creating a map unless needed. Taken from Boon project (https://github.com/boonproject/boon)

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

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

Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field	Description
private Object[]	keys
private LinkedHashMap	map
private int	size
private Object[]	values

Constructor Summary

Constructors

Constructor	Description
LazyMap()

Method Summary

Modifier and Type	Method	Description
private void	buildIfNeeded()
void	clear()
protected Object	clone()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<Object,Object>>	entrySet()
boolean	equals(Object o)
Object	get(Object key)
private static <V> V[]	grow(V[] array)
int	hashCode()
boolean	isEmpty()
Set	keySet()
Object	put(Object key, Object value)
void	putAll(Map m)
Object	remove(Object key)
private static <V> Set<V>	set(int size, V[] array)
int	size()
String	toString()
Collection	values()

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

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

Field Details

map

private LinkedHashMap map

size

private int size

keys

private Object[] keys

values

private Object[] values

Constructor Details

LazyMap

LazyMap()

Method Details

put

public Object put(Object key,
 Object value)

Specified by:

put in interface Map

Overrides:

put in class AbstractMap

entrySet

public Set<Map.Entry<Object,Object>> entrySet()

Specified by:

entrySet in interface Map

Specified by:

entrySet in class AbstractMap

size

public int size()

Specified by:

size in interface Map

Overrides:

size in class AbstractMap

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map

Overrides:

isEmpty in class AbstractMap

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map

Overrides:

containsValue in class AbstractMap

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map

Overrides:

containsKey in class AbstractMap

get

public Object get(Object key)

Specified by:

get in interface Map

Overrides:

get in class AbstractMap

buildIfNeeded

private void buildIfNeeded()

remove

public Object remove(Object key)

Specified by:

remove in interface Map

Overrides:

remove in class AbstractMap

putAll

public void putAll(Map m)

Specified by:

putAll in interface Map

Overrides:

putAll in class AbstractMap

clear

public void clear()

Specified by:

clear in interface Map

Overrides:

clear in class AbstractMap

keySet

public Set keySet()

Specified by:

keySet in interface Map

Overrides:

keySet in class AbstractMap

values

public Collection values()

Specified by:

values in interface Map

Overrides:

values in class AbstractMap

equals

public boolean equals(Object o)

Specified by:

equals in interface Map

Overrides:

equals in class AbstractMap

hashCode

public int hashCode()

Specified by:

hashCode in interface Map

Overrides:

hashCode in class AbstractMap

toString

public String toString()

Overrides:

toString in class AbstractMap

clone

protected Object clone()

Overrides:

clone in class AbstractMap

set

private static <V> Set<V> set(int size,
 V[] array)

grow

private static <V> V[] grow(V[] array)