org.eclipse.jetty.util

Class MultiMap<K>

java.lang.Object

org.eclipse.jetty.util.MultiMap<K>

Type Parameters:

K - The key type of the map.

All Implemented Interfaces:

Serializable, ConcurrentMap<K,Object>, Map<K,Object>

Direct Known Subclasses:

UrlEncoded

public class MultiMap<K>
extends Object
implements ConcurrentMap<K,Object>, Serializable

A multi valued Map. This Map specializes HashMap and provides methods that operate on multi valued items.

Implemented as a map of LazyList values

See Also:

LazyList, Serialized Form

Nested Class Summary

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

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
MultiMap()
MultiMap(boolean concurrent)
MultiMap(int capacity)
MultiMap(Map<K,Object> map)
MultiMap(MultiMap<K> map)

Method Summary

Methods

Modifier and Type	Method and Description
void	add(K name, Object value) Add value to multi valued entry.
void	addValues(K name, List<? extends Object> values) Add values to multi valued entry.
void	addValues(K name, String[] values) Add values to multi valued entry.
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,Object>>	entrySet()
boolean	equals(Object o)
Object	get(Object name)
String	getString(Object name) Get value as String.
Object	getValue(Object name, int i) Get a value from a multiple value.
List<Object>	getValues(Object name) Get multiple values.
int	hashCode()
boolean	isEmpty()
Set<K>	keySet()
Object	put(K name, Object value) Put and entry into the map.
void	putAll(Map<? extends K,? extends Object> m) Put all contents of map.
Object	putIfAbsent(K key, Object value)
Object	putValues(K name, List<? extends Object> values) Put multi valued entry.
Object	putValues(K name, String... values) Put multi valued entry.
Object	remove(Object key)
boolean	remove(Object key, Object value)
boolean	removeValue(K name, Object value) Remove value.
Object	replace(K key, Object value)
boolean	replace(K key, Object oldValue, Object newValue)
int	size()
String	toString()
Map<K,String[]>	toStringArrayMap()
Collection<Object>	values()

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiMap

public MultiMap()

MultiMap

public MultiMap(Map<K,Object> map)

MultiMap

public MultiMap(MultiMap<K> map)

MultiMap

public MultiMap(int capacity)

MultiMap

public MultiMap(boolean concurrent)

Method Detail

getValues

public List<Object> getValues(Object name)

Get multiple values. Single valued entries are converted to singleton lists.

Parameters:

name - The entry key.

Returns:

Unmodifieable List of values.

getValue

public Object getValue(Object name,
              int i)

Get a value from a multiple value. If the value is not a multivalue, then index 0 retrieves the value or null.

Parameters:

name - The entry key.

i - Index of element to get.

Returns:

Unmodifieable List of values.

getString

public String getString(Object name)

Get value as String. Single valued items are converted to a String with the toString() Object method. Multi valued entries are converted to a comma separated List. No quoting of commas within values is performed.

Parameters:

name - The entry key.

Returns:

String value.

get

public Object get(Object name)

Specified by:

get in interface Map<K,Object>

put

public Object put(K name,
         Object value)

Put and entry into the map.

Specified by:

put in interface Map<K,Object>

Parameters:

name - The entry key.

value - The entry value.

Returns:

The previous value or null.

putValues

public Object putValues(K name,
               List<? extends Object> values)

Put multi valued entry.

Parameters:

name - The entry key.

values - The List of multiple values.

Returns:

The previous value or null.

putValues

public Object putValues(K name,
               String... values)

Put multi valued entry.

Parameters:

name - The entry key.

values - The String array of multiple values.

Returns:

The previous value or null.

add

public void add(K name,
       Object value)

Add value to multi valued entry. If the entry is single valued, it is converted to the first value of a multi valued entry.

Parameters:

name - The entry key.

value - The entry value.

addValues

public void addValues(K name,
             List<? extends Object> values)

Add values to multi valued entry. If the entry is single valued, it is converted to the first value of a multi valued entry.

Parameters:

name - The entry key.

values - The List of multiple values.

addValues

public void addValues(K name,
             String[] values)

Add values to multi valued entry. If the entry is single valued, it is converted to the first value of a multi valued entry.

Parameters:

name - The entry key.

values - The String array of multiple values.

removeValue

public boolean removeValue(K name,
                  Object value)

Remove value.

Parameters:

name - The entry key.

value - The entry value.

Returns:

true if it was removed.

putAll

public void putAll(Map<? extends K,? extends Object> m)

Put all contents of map.

Specified by:

putAll in interface Map<K,Object>

Parameters:

m - Map

toStringArrayMap

public Map<K,String[]> toStringArrayMap()

Returns:

Map of String arrays

toString

public String toString()

Overrides:

toString in class Object

clear

public void clear()

Specified by:

clear in interface Map<K,Object>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,Object>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,Object>

entrySet

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

Specified by:

entrySet in interface Map<K,Object>

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<K,Object>

Overrides:

equals in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<K,Object>

Overrides:

hashCode in class Object

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,Object>

keySet

public Set<K> keySet()

Specified by:

keySet in interface Map<K,Object>

remove

public Object remove(Object key)

Specified by:

remove in interface Map<K,Object>

size

public int size()

Specified by:

size in interface Map<K,Object>

values

public Collection<Object> values()

Specified by:

values in interface Map<K,Object>

putIfAbsent

public Object putIfAbsent(K key,
                 Object value)

Specified by:

putIfAbsent in interface ConcurrentMap<K,Object>

remove

public boolean remove(Object key,
             Object value)

Specified by:

remove in interface ConcurrentMap<K,Object>

replace

public boolean replace(K key,
              Object oldValue,
              Object newValue)

Specified by:

replace in interface ConcurrentMap<K,Object>

replace

public Object replace(K key,
             Object value)

Specified by:

replace in interface ConcurrentMap<K,Object>