+ renamed length to size on Hash ops

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/core/DefaultBoundHashOperations.java

@@ -76,7 +76,7 @@ class DefaultBoundHashOperations<H, HK, HV> extends DefaultKeyBound<H> implement
 
 	@Override
 	public Integer length() {
-		return ops.length(getKey());
+		return ops.size(getKey());
 	}
 
 	@Override

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/core/HashOperations.java

@@ -38,7 +38,7 @@ public interface HashOperations<H, HK, HV> {
 
 	Set<HK> keys(H key);
 
-	Integer length(H key);
+	Integer size(H key);
 
 	void multiSet(H key, Map<? extends HK, ? extends HV> m);
 

spring-data-redis/src/main/java/org/springframework/data/keyvalue/redis/core/RedisTemplate.java

@@ -1287,7 +1287,7 @@ public class RedisTemplate<K, V> extends RedisAccessor implements RedisOperation
 		}
 
 		@Override
-		public Integer length(K key) {
+		public Integer size(K key) {
 			final byte[] rawKey = rawKey(key);
 
 			return execute(new RedisCallback<Integer>() {