dw.util
Class Map
Object
dw.util.Map
Represents a Map of objects.
All Known Subclasses
Properties
empty  :  boolean  (Read Only)
Identifies if this map is empty.
static EMPTY_MAP  :  Map
Convenience variable, for an empty and immutable list.
length  :  Number  (Read Only)
The size of the map. This is a bean attribute method and supports the access to the collections length similar to a ECMA array, such as 'products.length'.
Constructor Summary
This class does not have a constructor, so you cannot create it directly. To get an instance of this class, use one of the subclass constructors.
Method Summary
clear() : void
Clears the map of all objects.
containsKey(key : Object) : boolean
Identifies if this map contains an element identfied by the specified key.
containsValue(value : Object) : boolean
Identifies if this map contains an element identfied by the specified value.
entrySet() : Set
Returns a set of the map's entries.
get(key : Object) : Object
Returns the object associated with the key or null.
getLength() : Number
REturns the size of the map.
isEmpty() : boolean
Identifies if this map is empty.
keySet() : Set
Returns a set of the map's keys.
put(key : Object, value : Object) : Object
Puts the specified value into the map using the specified key to identify it.
putAll(other : Map) : void
Copies all of the objects inside the specified map into this map.
remove(key : Object) : Object
Removes the object from the map that is identified by the key.
size() : Number
Returns the size of the map.
values() : Collection
Returns a collection of the values contained in this map.
values() : Collection
Returns a collection of the values contained in this map.
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Method Detail
clear
clear() : void
Clears the map of all objects.

containsKey
containsKey(key : Object) : boolean
Identifies if this map contains an element identfied by the specified key.
Parameters:
key - the key to use.
Returns:
true if this map contains an element whose key is equal to the specified key.

containsValue
containsValue(value : Object) : boolean
Identifies if this map contains an element identfied by the specified value.
Parameters:
value - the value to use.
Returns:
true if this map contains an element whose value is equal to the specified value.

entrySet
entrySet() : Set
Returns a set of the map's entries. The returned set is actually a view to the entries of this map.
Returns:
a set of the map's entries.

get
get(key : Object) : Object
Returns the object associated with the key or null.
Parameters:
key - the key to use.
Returns:
the object associated with the key or null.

getLength
getLength() : Number
REturns the size of the map. This is a bean attribute method and supports the access to the collections length similar to a ECMA array, such as 'products.length'.
Returns:
the number of objects in the map.

isEmpty
isEmpty() : boolean
Identifies if this map is empty.
Returns:
true if the map is empty, false otherwise.

keySet
keySet() : Set
Returns a set of the map's keys. The returned set is actually a view to the keys of this map.
Returns:
a set of the map's keys.

put
put(key : Object, value : Object) : Object
Puts the specified value into the map using the specified key to identify it.
Parameters:
key - the key to use to identify the value.
value - the object to put into the map.
Returns:
previous value associated with specified key, or null if there was no mapping for key.

putAll
putAll(other : Map) : void
Copies all of the objects inside the specified map into this map.
Parameters:
other - the map whose contents are copied into this map.

remove
remove(key : Object) : Object
Removes the object from the map that is identified by the key.
Parameters:
key - the key that identifies the object to remove.
Returns:
the removed object or null.

size
size() : Number
Returns the size of the map.
Returns:
the number of objects in the map.

values
values() : Collection
Returns a collection of the values contained in this map.
API Versioned:
No longer available as of version 16.1. Returns an independent modifiable collection holding all values.
Returns:
a collection of the values contained in this map

values
values() : Collection
Returns a collection of the values contained in this map.
API Versioned:
From version 16.1. Returns a view on the values of this map like keySet() and entrySet() do. Former version returned a shallow copy of this.
Returns:
a collection of the values contained in this map

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