DATAREDIS-1080 - Improve documentation on Atomic number implementations.

Clarify that the initialization value overwrites the existing key if it exists.

src/main/java/org/springframework/data/redis/support/atomic/RedisAtomicDouble.java

@@ -51,7 +51,8 @@ public class RedisAtomicDouble extends Number implements Serializable, BoundKeyO
 	private final RedisOperations<String, Double> generalOps;
 
 	/**
-	 * Constructs a new {@link RedisAtomicDouble} instance. Uses the value existing in Redis or 0 if none is found.
+	 * Constructs a new {@link RedisAtomicDouble} instance. Uses the value existing in Redis or {@code 0} if none is
+	 * found.
 	 *
 	 * @param redisCounter Redis key of this counter.
 	 * @param factory connection factory.
@@ -61,11 +62,11 @@ public class RedisAtomicDouble extends Number implements Serializable, BoundKeyO
 	}
 
 	/**
-	 * Constructs a new {@link RedisAtomicDouble} instance.
+	 * Constructs a new {@link RedisAtomicDouble} instance with a {@code initialValue} that overwrites the existing value.
 	 *
 	 * @param redisCounter Redis key of this counter.
 	 * @param factory connection factory.
-	 * @param initialValue initial value to set if the Redis key is absent.
+	 * @param initialValue initial value to set.
 	 */
 	public RedisAtomicDouble(String redisCounter, RedisConnectionFactory factory, double initialValue) {
 		this(redisCounter, factory, Double.valueOf(initialValue));
@@ -106,10 +107,14 @@ public class RedisAtomicDouble extends Number implements Serializable, BoundKeyO
 	}
 
 	/**
-	 * Constructs a new {@link RedisAtomicDouble} instance. Note: You need to configure the given {@code template} with
-	 * appropriate {@link RedisSerializer} for the key and value. As an alternative one could use the
-	 * {@link #RedisAtomicDouble(String, RedisConnectionFactory, Double)} constructor which uses appropriate default
-	 * serializers.
+	 * Constructs a new {@link RedisAtomicDouble} instance with a {@code initialValue} that overwrites the existing value
+	 * at {@code redisCounter}.
+	 * <p>
+	 * Note: You need to configure the given {@code template} with appropriate {@link RedisSerializer} for the key and
+	 * value.
+	 * <p>
+	 * As an alternative one could use the {@link #RedisAtomicDouble(String, RedisConnectionFactory, Double)} constructor
+	 * which uses appropriate default serializers.
 	 *
 	 * @param redisCounter Redis key of this counter.
 	 * @param template the template

src/main/java/org/springframework/data/redis/support/atomic/RedisAtomicInteger.java

@@ -52,7 +52,8 @@ public class RedisAtomicInteger extends Number implements Serializable, BoundKey
 	private final RedisOperations<String, Integer> generalOps;
 
 	/**
-	 * Constructs a new {@link RedisAtomicInteger} instance. Uses the value existing in Redis or 0 if none is found.
+	 * Constructs a new {@link RedisAtomicInteger} instance. Uses the value existing in Redis or {@code 0} if none is
+	 * found.
 	 *
 	 * @param redisCounter Redis key of this counter.
 	 * @param factory connection factory.
@@ -62,18 +63,20 @@ public class RedisAtomicInteger extends Number implements Serializable, BoundKey
 	}
 
 	/**
-	 * Constructs a new {@link RedisAtomicInteger} instance.
+	 * Constructs a new {@link RedisAtomicInteger} instance with a {@code initialValue} that overwrites the existing
+	 * value.
 	 *
 	 * @param redisCounter Redis key of this counter.
 	 * @param factory connection factory.
-	 * @param initialValue initial value to set if the Redis key is absent.
+	 * @param initialValue initial value to set.
 	 */
 	public RedisAtomicInteger(String redisCounter, RedisConnectionFactory factory, int initialValue) {
 		this(redisCounter, factory, Integer.valueOf(initialValue));
 	}
 
 	/**
-	 * Constructs a new {@link RedisAtomicInteger} instance. Uses the value existing in Redis or 0 if none is found.
+	 * Constructs a new {@link RedisAtomicInteger} instance. Uses the value existing in Redis or {@code 0} if none is
+	 * found.
 	 *
 	 * @param redisCounter Redis key of this counter.
 	 * @param template the template.
@@ -84,10 +87,14 @@ public class RedisAtomicInteger extends Number implements Serializable, BoundKey
 	}
 
 	/**
-	 * Constructs a new {@link RedisAtomicInteger} instance. Note: You need to configure the given {@code template} with
-	 * appropriate {@link RedisSerializer} for the key and value. As an alternative one could use the
-	 * {@link #RedisAtomicInteger(String, RedisConnectionFactory, Integer)} constructor which uses appropriate default
-	 * serializers.
+	 * Constructs a new {@link RedisAtomicInteger} instance instance with a {@code initialValue} that overwrites the
+	 * existing value.
+	 * <p>
+	 * Note: You need to configure the given {@code template} with appropriate {@link RedisSerializer} for the key and
+	 * value.
+	 * <p>
+	 * As an alternative one could use the {@link #RedisAtomicInteger(String, RedisConnectionFactory, Integer)}
+	 * constructor which uses appropriate default serializers.
 	 *
 	 * @param redisCounter Redis key of this counter.
 	 * @param template the template.

src/main/java/org/springframework/data/redis/support/atomic/RedisAtomicLong.java

@@ -53,7 +53,7 @@ public class RedisAtomicLong extends Number implements Serializable, BoundKeyOpe
 	private final RedisOperations<String, Long> generalOps;
 
 	/**
-	 * Constructs a new {@link RedisAtomicLong} instance. Uses the value existing in Redis or 0 if none is found.
+	 * Constructs a new {@link RedisAtomicLong} instance. Uses the value existing in Redis or {@code 0} if none is found.
 	 *
 	 * @param redisCounter Redis key of this counter.
 	 * @param factory connection factory.
@@ -63,11 +63,12 @@ public class RedisAtomicLong extends Number implements Serializable, BoundKeyOpe
 	}
 
 	/**
-	 * Constructs a new {@link RedisAtomicLong} instance.
+	 * Constructs a new {@link RedisAtomicLong} instance with a {@code initialValue} that overwrites the existing value at
+	 * {@code redisCounter}.
 	 *
 	 * @param redisCounter Redis key of this counter.
 	 * @param factory connection factory.
-	 * @param initialValue initial value to set if the Redis key is absent.
+	 * @param initialValue initial value to set.
 	 */
 	public RedisAtomicLong(String redisCounter, RedisConnectionFactory factory, long initialValue) {
 		this(redisCounter, factory, Long.valueOf(initialValue));
@@ -96,7 +97,7 @@ public class RedisAtomicLong extends Number implements Serializable, BoundKeyOpe
 	}
 
 	/**
-	 * Constructs a new {@link RedisAtomicLong} instance. Uses the value existing in Redis or 0 if none is found.
+	 * Constructs a new {@link RedisAtomicLong} instance. Uses the value existing in Redis or {@code 0} if none is found.
 	 *
 	 * @param redisCounter Redis key of this counter.
 	 * @param template the template.
@@ -107,7 +108,7 @@ public class RedisAtomicLong extends Number implements Serializable, BoundKeyOpe
 	}
 
 	/**
-	 * Constructs a new {@link RedisAtomicLong} instance.
+	 * Constructs a new {@link RedisAtomicLong} instance with a {@code initialValue} that overwrites the existing value.
 	 * <p>
 	 * Note: You need to configure the given {@code template} with appropriate {@link RedisSerializer} for the key and
 	 * value. The key serializer must be able to deserialize to a {@link String} and the value serializer must be able to