--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/cl/maps/quad/QuadMap.java	Wed Dec 14 15:49:40 2016 +0100
@@ -0,0 +1,191 @@
+package cl.maps.quad;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+public class QuadMap<V, A, B, C, D> implements IQuadMap<V, A, B, C, D>{
+	
+	private Map<QuadKey<A, B, C, D>, V> map;
+	private Map<A, List<QuadKey<A, B, C, D>>> mapAKey;
+	private Map<B, List<QuadKey<A, B, C, D>>> mapBKey;
+	private Map<C, List<QuadKey<A, B, C, D>>> mapCKey;
+	private Map<D, QuadKey<A, B, C, D>> mapOwnKey;
+	
+	public QuadMap(){
+		this.map  = new HashMap<QuadKey<A, B, C, D>, V>();
+		this.mapAKey = new HashMap<A, List<QuadKey<A, B, C, D>>>();
+		this.mapBKey = new HashMap<B, List<QuadKey<A, B, C, D>>>();
+		this.mapCKey = new HashMap<C, List<QuadKey<A, B, C, D>>>();
+		this.mapOwnKey = new HashMap<D, QuadKey<A, B, C, D>>();
+	}
+	
+	public QuadMap(QuadMap<? extends V, A, B, C, D> m) {
+		this.map  = new HashMap<QuadKey<A, B, C, D>, V>();
+		this.mapAKey = new HashMap<A, List<QuadKey<A, B, C, D>>>();
+		this.mapBKey = new HashMap<B, List<QuadKey<A, B, C, D>>>();
+		this.mapCKey = new HashMap<C, List<QuadKey<A, B, C, D>>>();
+		this.mapOwnKey = new HashMap<D, QuadKey<A, B, C, D>>();
+		this.putAllForCreate(m);
+	}
+
+	private void putAllForCreate(QuadMap<? extends V, A, B, C, D> m) {
+		for(Map.Entry<QuadKey<A, B, C, D>, ? extends V> e : m.entrySet()){
+			QuadKey<A, B, C, D> tKey = e.getKey(); 
+			 this.map.put(tKey, e.getValue());
+			 this.mapOwnKey.put(tKey.getOwnKey(), tKey);
+			 
+			 if(!mapAKey.containsKey(tKey.getAKey())){
+				 mapAKey.put(tKey.getAKey(), new ArrayList<QuadKey<A, B, C, D>>());
+			 }
+			 if(!mapAKey.get(tKey.getAKey()).contains(tKey)){
+				 mapAKey.get(tKey.getAKey()).add(tKey);	 
+			 }
+			 
+			 if(!mapBKey.containsKey(tKey.getBKey())){
+				 mapBKey.put(tKey.getBKey(), new ArrayList<QuadKey<A, B, C, D>>());
+			 }
+			 if(!mapBKey.get(tKey.getBKey()).contains(tKey)){
+				 mapBKey.get(tKey.getBKey()).add(tKey);	 
+			 }
+			 
+			 if(!mapCKey.containsKey(tKey.getCKey())){
+				 mapCKey.put(tKey.getCKey(), new ArrayList<QuadKey<A, B, C, D>>());
+			 }
+			 if(!mapCKey.get(tKey.getCKey()).contains(tKey)){
+				 mapCKey.get(tKey.getCKey()).add(tKey);	 
+			 }
+		}
+	}
+	
+	public List<V> getValuesByAKey(A srcKey){
+		List<V> list = new ArrayList<V>();
+		if(mapAKey.containsKey(srcKey)){
+			for(QuadKey<A, B, C, D> tKey : mapAKey.get(srcKey)){
+				list.add(map.get(tKey));
+			}
+		}
+		return list;
+	}
+	
+	public List<V> getValuesByBKey(B tarKey){
+		List<V> list = new ArrayList<V>();
+		if(mapBKey.containsKey(tarKey)){
+			for(QuadKey<A, B, C, D> tKey : mapBKey.get(tarKey)){
+				list.add(map.get(tKey));
+			}
+		}
+		return list;
+	}
+	
+	public List<V> getValuesByCKey(C cKey){
+		List<V> list = new ArrayList<V>();
+		if(mapCKey.containsKey(cKey)){
+			for(QuadKey<A, B, C, D> tKey : mapCKey.get(cKey)){
+				list.add(map.get(tKey));
+			}
+		}
+		return list;
+	}
+	
+	public V getValuesByOwnKey(D ownKey){
+		QuadKey<A, B, C, D> tKey = mapOwnKey.get(ownKey);
+		if(tKey != null){
+			return this.map.get(tKey);
+		}
+		return null;
+	}
+	
+	public Set<QuadKey<A, B, C, D>> keySet(){
+		return this.map.keySet();
+	}
+	
+	public Set<Map.Entry<QuadKey<A, B, C, D>, V>> entrySet() {
+		return this.map.entrySet();
+	}	
+	
+	@Override
+	public int size() {
+		return this.map.size();
+	}
+
+	@Override
+	public boolean isEmpty() {
+		return this.map.isEmpty();
+	}
+
+	@Override
+	public boolean containsKey(QuadKey<A, B, C, D> key) {
+		return this.map.containsKey(key);
+	}
+
+	@Override
+	public boolean containsValue(Object value) {
+		return this.map.containsValue(value);
+	}
+
+	@Override
+	public V get(QuadKey<A, B, C, D> key) {
+		return map.get(key);
+	}
+
+	@Override
+	public V put(QuadKey<A, B, C, D> tKey, V value) {
+
+		if(!mapAKey.containsKey(tKey.getAKey())){
+			 mapAKey.put(tKey.getAKey(), new ArrayList<QuadKey<A, B, C, D>>());
+		 }
+		 if(!mapAKey.get(tKey.getAKey()).contains(tKey)){
+			 mapAKey.get(tKey.getAKey()).add(tKey);	 
+		 }
+		 
+		 if(!mapBKey.containsKey(tKey.getBKey())){
+			 mapBKey.put(tKey.getBKey(), new ArrayList<QuadKey<A, B, C, D>>());
+		 }
+		 if(!mapBKey.get(tKey.getBKey()).contains(tKey)){
+			 mapBKey.get(tKey.getBKey()).add(tKey);	 
+		 }
+		 
+		 if(!mapCKey.containsKey(tKey.getCKey())){
+			 mapCKey.put(tKey.getCKey(), new ArrayList<QuadKey<A, B, C, D>>());
+		 }
+		 if(!mapCKey.get(tKey.getCKey()).contains(tKey)){
+			 mapCKey.get(tKey.getCKey()).add(tKey);	 
+		 }
+		 
+		 this.mapOwnKey.put(tKey.getOwnKey(), tKey);
+		 return this.map.put(tKey, value);
+	}
+
+	@Override
+	public V remove(QuadKey<A, B, C, D> key) {
+		if(mapAKey.containsKey(key.getAKey())){
+			mapAKey.get(key.getAKey()).remove(key);
+		}
+		if(mapBKey.containsKey(key.getBKey())){
+			mapBKey.get(key.getBKey()).remove(key);
+		}
+		if(mapCKey.containsKey(key.getCKey())){
+			mapCKey.get(key.getCKey()).remove(key);
+		}
+		this.mapOwnKey.remove(key.getOwnKey());
+		return this.map.remove(key);
+	}
+
+	@Override
+	public void clear() {
+		this.map.clear();
+		this.mapAKey.clear();
+		this.mapBKey.clear();
+		this.mapCKey.clear();
+		this.mapOwnKey.clear();
+	}
+
+	@Override
+	public Collection<V> values() {
+		return this.map.values();
+	}
+}