org.alfresco.repo.content.transform

Class DoubleMap<K1,K2,V>

java.lang.Object

org.alfresco.repo.content.transform.DoubleMap<K1,K2,V>

public class DoubleMap<K1,K2,V>
extends Object

Provides simple get and put access to a Map like object with a double key that allows either or both keys to be a wild card that matches any value. May not contain null keys or values.

Originally created for mapping source and target mimetypes to transformer configuration data.

For example:

       DoubleMap foodLikes = new DoubleMap("*", "*");
       
       foodLikes.put("cat",   "mouse", "likes");
       
       foodLikes.get("cat", "mouse"); // returns "likes"
       foodLikes.get("cat", "meat");  // returns null
       
       foodLikes.put("dog",   "meat",  "likes");
       foodLikes.put("dog",   "stick", "unsure");
       foodLikes.put("child", "olive", "dislikes");
       foodLikes.put("bird",  "*",     "worms only");
       foodLikes.put("*",     "meat",  "unknown");
       foodLikes.put("*",     "*",     "no idea at all");
       
       foodLikes.get("cat", "mouse"); // returns "likes"
       foodLikes.get("cat", "meat");  // returns "unknown"
       foodLikes.get("cat", "tea");   // returns "unknown"
       foodLikes.get("*",   "mouse"); // returns "no idea at all"
       foodLikes.get("dog", "*");     // returns "no idea at all"
       foodLikes.get("bird","*");     // returns "worms only"
       foodLikes.get("bird","tea");   // returns "worms only"
 

Author:

Alan Davis

Constructor Summary

Constructors

Constructor and Description
DoubleMap(K1 anyKey1, K2 anyKey2)

Method Summary

Methods

Modifier and Type	Method and Description
V	get(K1 key1, K2 key2) Returns a value for the given keys.
V	getNoWildcards(K1 key1, K2 key2) Returns a value for the given keys without using wildcards.
void	put(K1 key1, K2 key2, V t) Adds a value for the given keys.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DoubleMap

public DoubleMap(K1 anyKey1,
         K2 anyKey2)

Method Detail

get

public V get(K1 key1,
    K2 key2)

Returns a value for the given keys.

getNoWildcards

public V getNoWildcards(K1 key1,
               K2 key2)

Returns a value for the given keys without using wildcards.

put

public void put(K1 key1,
       K2 key2,
       V t)

Adds a value for the given keys.