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ServerCommon/Entity/DbQuery/DBQWithItemRequestQueryContext.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+
+using ServerCore; using ServerBase;
+using ServerCommon.BusinessLogDomain;
+
+
+using SESSION_ID = System.Int32;
+using WORLD_ID = System.UInt32;
+using META_ID = System.UInt32;
+using ENTITY_GUID = System.String;
+using ACCOUNT_ID = System.String;
+using OWNER_GUID = System.String;
+using USER_GUID = System.String;
+using CHARACTER_GUID = System.String;
+using ITEM_GUID = System.String;
+
+
+
+namespace ServerCommon
+{
+    public class DBQWithItemRequestQueryContext : QueryExecutorBase
+    {
+        private readonly List<DynamoDbItemRequestQueryContext> m_to_query_item_request_query_contexts = new();
+
+        public DBQWithItemRequestQueryContext(DynamoDbItemRequestQueryContext queryContext)
+            : base(typeof(DBQWithItemRequestQueryContext).Name)
+        {
+            m_to_query_item_request_query_contexts.Add(queryContext);
+        }
+
+        public DBQWithItemRequestQueryContext(List<DynamoDbItemRequestQueryContext> queryContexts)
+            : base(typeof(DBQWithItemRequestQueryContext).Name)
+        {
+            m_to_query_item_request_query_contexts = queryContexts;
+        }
+
+        //=====================================================================================
+        // DB 쿼리 직전에 준비해야 할 로직들을 작성한다.
+        //=====================================================================================
+        public override async Task<Result> onPrepareQuery()
+        {
+            await Task.CompletedTask;
+
+            var result = new Result();
+            var err_msg = string.Empty;
+
+            return result;
+        }
+
+        //=====================================================================================
+        // onPrepareQuery()를 성공할 경우 호출된다.
+        //=====================================================================================
+        public override async Task<Result> onQuery()
+        {
+            var result = new Result();
+            var err_msg = string.Empty;
+
+            var owner = getOwner();
+            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
+
+            var query_batch = getQueryBatch();
+            NullReferenceCheckHelper.throwIfNull(query_batch, () => $"query_batch is null !!! - {owner.toBasicString()}");
+
+            var query_runner = query_batch.getQueryRunner();
+            NullReferenceCheckHelper.throwIfNull(query_runner, () => $"query_runner is null !!! - {owner.toBasicString()}");
+
+            foreach (var query_context in m_to_query_item_request_query_contexts)
+            {
+                result = await query_runner.tryRegisterQueryContext(query_context);
+                if (result.isFail())
+                {
+                    return result;
+                }
+            }
+
+            var msg = $"{this.getTypeName()} : tryQueryCount:{m_to_query_item_request_query_contexts.Count}, isUseTransact:{query_batch.isUseTransact()} - TransId:{query_batch.getTransId()}";
+            Log.getLogger().info(msg);
+
+            return result;
+        }
+
+        public List<DynamoDbItemRequestQueryContext> getToItemRequestQueryContexts() => m_to_query_item_request_query_contexts;
+
+        //=====================================================================================
+        // DB 쿼리를 성공하고, doFnCommit()가 QueryResultType.NotCalledQueryFunc를 반환할 경우 호출된다.
+        //=====================================================================================
+        public override async Task onQueryResponseCommit()
+        {
+            await Task.CompletedTask;
+            return;
+        }
+
+        //=====================================================================================
+        // DB 쿼리를 실패하고, doFnRollback()가 QueryResultType.NotCalledQueryFunc를 반환할 경우 호출된다.
+        //=====================================================================================
+        public override async Task onQueryResponseRollback(Result errorResult)
+        {
+            await Task.CompletedTask;
+            return;
+        }
+    }
+}