feat: enhance process code structure at nosql database

Signed-off-by: Otavio Santana <otaviopolianasantana@gmail.com>

Author: otaviojava

jnosql-cassandra/src/main/java/org/eclipse/jnosql/databases/cassandra/communication/DeleteQueryConverter.java

@@ -32,7 +32,6 @@ static Delete delete(DeleteQuery query, String keyspace) {
             deleteSelection = deleteSelection.column(QueryUtils.getName(column));
         }
 
-        final Delete delete = deleteSelection.where(Relations.createClause(query.condition().orElse(null)));
-        return delete;
+        return deleteSelection.where(Relations.createClause(query.condition().orElse(null)));
     }
 }

jnosql-cassandra/src/test/java/org/eclipse/jnosql/databases/cassandra/mapping/Address.java

@@ -59,9 +59,8 @@ public int hashCode() {
 
     @Override
     public String toString() {
-        String sb = "Address{" + "city='" + city + '\'' +
+        return "Address{" + "city='" + city + '\'' +
                 ", street='" + street + '\'' +
                 '}';
-        return sb;
     }
 }

jnosql-cassandra/src/test/java/org/eclipse/jnosql/databases/cassandra/mapping/model/Contact.java

@@ -64,9 +64,8 @@ public int hashCode() {
 
     @Override
     public String toString() {
-        String sb = "Contact{" + "name='" + name + '\'' +
+        return "Contact{" + "name='" + name + '\'' +
                 ", description='" + description + '\'' +
                 '}';
-        return sb;
     }
 }

jnosql-cassandra/src/test/java/org/eclipse/jnosql/databases/cassandra/mapping/model/User.java

@@ -79,10 +79,9 @@ public int hashCode() {
 
     @Override
     public String toString() {
-        String sb = "User{" + "nickname='" + nickname + '\'' +
+        return "User{" + "nickname='" + nickname + '\'' +
                 ", name='" + name + '\'' +
                 ", age=" + age +
                 '}';
-        return sb;
     }
 }

jnosql-elasticsearch/src/main/java/org/eclipse/jnosql/databases/elasticsearch/communication/ElasticsearchDocumentConfiguration.java

@@ -120,8 +120,7 @@ public ElasticsearchClient buildElasticsearchClient(Settings settings) {
 
         var transport = new RestClientTransport(httpClient, new JsonbJsonpMapper());
 
-        var elasticsearchClient = new ElasticsearchClient(transport);
-        return elasticsearchClient;
+        return new ElasticsearchClient(transport);
     }
 
 }

jnosql-mongodb/src/test/java/org/eclipse/jnosql/databases/mongodb/mapping/Birthday.java

@@ -63,9 +63,8 @@ public int hashCode() {
 
     @Override
     public String toString() {
-        String sb = "Person{" + "name='" + name + '\'' +
+        return "Person{" + "name='" + name + '\'' +
                 ", age=" + age +
                 '}';
-        return sb;
     }
 }

jnosql-redis/src/main/java/org/eclipse/jnosql/databases/redis/communication/RedisMap.java

@@ -181,8 +181,7 @@ public Set<Entry<K, V>> entrySet() {
     }
 
     private Map<String, String> createRedisMap() {
-        Map<String, String> map = jedis.hgetAll(nameSpace);
-        return map;
+        return jedis.hgetAll(nameSpace);
     }
 
     private Map<K, V> createHashMap() {