org.wandora.utils

Class OrderedMap

java.lang.Object

org.wandora.utils.OrderedMap

All Implemented Interfaces:

java.util.Map

public class OrderedMap
extends java.lang.Object
implements java.util.Map

A map that keeps the order of entries in entrySet. Entries are returned in the order they are added. Note that contains*, get, keySet and values methods use linear time so this class isn't good for lookups.

Java now has a built in better implementation of same functionality. You should use java.util.LinkedHashMap instead of this class.

Author:

olli

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private class	OrderedMap.OrderedEntry
private class	OrderedMap.OrderedSet

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

java.util.Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Set	entrySet

Constructor Summary

Constructors

Constructor and Description
OrderedMap() Creates a new instance of OrderedMap
OrderedMap(java.lang.Object[] objects)

Method Summary

Modifier and Type	Method and Description
void	clear()
boolean	containsKey(java.lang.Object key)
boolean	containsValue(java.lang.Object value)
java.util.Set	entrySet()
java.lang.Object	get(java.lang.Object key)
boolean	isEmpty()
java.util.Set	keySet()
java.lang.Object	put(java.lang.Object key, java.lang.Object value)
void	putAll(java.util.Map t)
java.lang.Object	remove(java.lang.Object key)
int	size()
java.util.Collection	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

Field Detail

entrySet

private java.util.Set entrySet

Constructor Detail

OrderedMap

public OrderedMap()

Creates a new instance of OrderedMap

OrderedMap

public OrderedMap(java.lang.Object[] objects)

Method Detail

clear

public void clear()

Specified by:

clear in interface java.util.Map

containsKey

public boolean containsKey(java.lang.Object key)

Specified by:

containsKey in interface java.util.Map

containsValue

public boolean containsValue(java.lang.Object value)

Specified by:

containsValue in interface java.util.Map

entrySet

public java.util.Set entrySet()

Specified by:

entrySet in interface java.util.Map

get

public java.lang.Object get(java.lang.Object key)

Specified by:

get in interface java.util.Map

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map

keySet

public java.util.Set keySet()

Specified by:

keySet in interface java.util.Map

put

public java.lang.Object put(java.lang.Object key,
                            java.lang.Object value)

Specified by:

put in interface java.util.Map

putAll

public void putAll(java.util.Map t)

Specified by:

putAll in interface java.util.Map

remove

public java.lang.Object remove(java.lang.Object key)

Specified by:

remove in interface java.util.Map

size

public int size()

Specified by:

size in interface java.util.Map

values

public java.util.Collection values()

Specified by:

values in interface java.util.Map