gnu.trove.map

Interface TMap<K,V>

  • All Superinterfaces:
    Map<K,V>
    All Known Implementing Classes:
    TCustomHashMap, THashMap 

    public interface TMap<K,V>
extends Map<K,V>
    Interface extension to Map which adds Trove-specific features.

    • Method Detail

      • putIfAbsent

        V putIfAbsent(K key,
              V value)
        Inserts a key/value pair into the map if the specified key is not already associated with a value.
        Specified by:
        putIfAbsent in interface  Map<K,V>
        Parameters:
        key - an Object value
        value - an Object value
        Returns:
        the previous value associated with key, or null if none was found.

      • forEachKey

        boolean forEachKey(TObjectProcedure<? super K> procedure)
        Executes procedure for each key in the map.
        Parameters:
        procedure - a TObjectProcedure value
        Returns:
        false if the loop over the keys terminated because the procedure returned false for some key.

      • forEachValue

        boolean forEachValue(TObjectProcedure<? super V> procedure)
        Executes procedure for each value in the map.
        Parameters:
        procedure - a TObjectProcedure value
        Returns:
        false if the loop over the values terminated because the procedure returned false for some value.

      • forEachEntry

        boolean forEachEntry(TObjectObjectProcedure<? super K,? super V> procedure)
        Executes procedure for each key/value entry in the map.
        Parameters:
        procedure - a TObjectObjectProcedure value
        Returns:
        false if the loop over the entries terminated because the procedure returned false for some entry.

      • retainEntries

        boolean retainEntries(TObjectObjectProcedure<? super K,? super V> procedure)
        Retains only those entries in the map for which the procedure returns a true value.
        Parameters:
        procedure - determines which entries to keep
        Returns:
        true if the map was modified.

      • transformValues

        void transformValues(TObjectFunction<V,V> function)
        Transform the values in this map using function.
        Parameters:
        function - a TObjectFunction value