Added class-level javadocs and changed some RedisMap delegations to s…

…crollElements() instead of directly on the backingMap.

src/main/java/redis/clients/johm/Nest.java

@@ -10,7 +10,8 @@
 import redis.clients.jedis.TransactionBlock;
 
 /**
- * 
+ * Nest serves as a remote proxy for Jedis-to-Redis bridge. Its name signifies
+ * nested namespaced key generation for Redis by using chainable namespaces.
  */
 public class Nest {
     private static final String COLON = ":";

src/main/java/redis/clients/johm/collections/RedisBaseCollection.java

@@ -5,7 +5,8 @@
 import java.util.concurrent.TimeUnit;
 
 /**
- * 
+ * This class provides the common contract for asynchronous operations on
+ * internal storage management of all JOhm collections.
  */
 abstract class RedisBaseCollection {
     // The choice of single-threaded executor is driven by current use of

src/main/java/redis/clients/johm/collections/RedisMap.java

@@ -47,17 +47,17 @@ public void clear() {
 
     @Override
     public boolean containsKey(Object key) {
-        return backingMap.containsKey(key);
+        return scrollElements().containsKey(key);
     }
 
     @Override
     public boolean containsValue(Object value) {
-        return backingMap.containsValue(value);
+        return scrollElements().containsValue(value);
     }
 
     @Override
     public Set<java.util.Map.Entry<K, V>> entrySet() {
-        return backingMap.entrySet();
+        return scrollElements().entrySet();
     }
 
     @Override
@@ -119,7 +119,7 @@ public int size() {
 
     @Override
     public Collection<V> values() {
-        return backingMap.values();
+        return scrollElements().values();
     }
 
     private V internalPut(final K key, final V value, boolean refreshStorage) {