+ add overloaded delete/watch operation for single key invocations

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

@@ -65,6 +65,8 @@ public interface RedisOperations<K, V> {
 
 	Boolean hasKey(K key);
 
+	void delete(K key);
+
 	void delete(Collection<K> key);
 
 	DataType type(K key);
@@ -85,6 +87,8 @@ public interface RedisOperations<K, V> {
 
 	Long getExpire(K key);
 
+	void watch(K keys);
+
 	void watch(Collection<K> keys);
 
 	void unwatch();

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

@@ -575,6 +575,19 @@ public class RedisTemplate<K, V> extends RedisAccessor implements RedisOperation
 		});
 	}
 
+	@Override
+	public void delete(K key) {
+		final byte[] rawKey = rawKey(key);
+
+		execute(new RedisCallback<Object>() {
+			@Override
+			public Object doInRedis(RedisConnection connection) {
+				connection.del(rawKey);
+				return null;
+			}
+		}, true);
+	}
+
 	@Override
 	public void delete(Collection<K> keys) {
 		final byte[][] rawKeys = rawKeys(keys);
@@ -787,6 +800,19 @@ public class RedisTemplate<K, V> extends RedisAccessor implements RedisOperation
 		}, true);
 	}
 
+	@Override
+	public void watch(K key) {
+		final byte[] rawKey = rawKey(key);
+
+		execute(new RedisCallback<Object>() {
+			@Override
+			public Object doInRedis(RedisConnection connection) {
+				connection.watch(rawKey);
+				return null;
+			}
+		}, true);
+	}
+
 	@Override
 	public void watch(Collection<K> keys) {
 		final byte[][] rawKeys = rawKeys(keys);