net.ontopia.utils
Class CollectionMap

java.lang.Object
  extended by java.util.AbstractMap<K,V>
      extended by java.util.HashMap
          extended by net.ontopia.utils.CollectionMap
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, java.util.Map

public class CollectionMap
extends java.util.HashMap

INTERNAL: A map which stores entries containing Collection values. Any object can be used as key. The add(key,value) and remove(key,value) makes sure that the Collection values are updated correctly.

The maintained index must only contain values implementing the Collection interface. The data structure looks like this: {key: [value, value, ...], key: [value, ...]}

Empty entries are removed by default.

See Also:
Serialized Form

Constructor Summary
CollectionMap()
           
CollectionMap(boolean drop_empty)
           
 
Method Summary
 void add(java.lang.Object key, java.lang.Object value)
           
 void move(java.lang.Object value, java.lang.Object old_key, java.lang.Object new_key)
           
 void remove(java.lang.Object key, java.lang.Object value)
           
 
Methods inherited from class java.util.HashMap
clear, clone, containsKey, containsValue, entrySet, get, isEmpty, keySet, put, putAll, remove, size, values
 
Methods inherited from class java.util.AbstractMap
equals, hashCode, toString
 
Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface java.util.Map
equals, hashCode
 

Constructor Detail

CollectionMap

public CollectionMap()

CollectionMap

public CollectionMap(boolean drop_empty)
Method Detail

add

public void add(java.lang.Object key,
                java.lang.Object value)

remove

public void remove(java.lang.Object key,
                   java.lang.Object value)

move

public void move(java.lang.Object value,
                 java.lang.Object old_key,
                 java.lang.Object new_key)


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