From 2f26b713897ca3270432eacc3a6f3b886bb142df Mon Sep 17 00:00:00 2001
From: Suomm <1474983351@qq.com>
Date: Mon, 31 Jul 2023 16:13:43 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E5=85=B3=E8=81=94=E6=9F=A5=E8=AF=A2?=
=?UTF-8?q?=E6=9E=84=E5=BB=BA=E3=80=82?=
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---
.../activerecord/query/AbstractQuery.java | 160 ++++++++++++++++++
1 file changed, 160 insertions(+)
create mode 100644 mybatis-flex-core/src/main/java/com/mybatisflex/core/activerecord/query/AbstractQuery.java
diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/activerecord/query/AbstractQuery.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/activerecord/query/AbstractQuery.java
new file mode 100644
index 00000000..3610dc87
--- /dev/null
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/activerecord/query/AbstractQuery.java
@@ -0,0 +1,160 @@
+/*
+ * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.mybatisflex.core.activerecord.query;
+
+import com.mybatisflex.core.BaseMapper;
+import com.mybatisflex.core.activerecord.Model;
+import com.mybatisflex.core.paginate.Page;
+import com.mybatisflex.core.query.QueryWrapper;
+
+import java.util.List;
+import java.util.Optional;
+
+/**
+ * 抽象关联查询。
+ *
+ * @author 王帅
+ * @since 2023-07-30
+ */
+public abstract class AbstractQuery> {
+
+ protected final Model model;
+
+ protected AbstractQuery(Model model) {
+ this.model = model;
+ }
+
+ /**
+ * @return 主键
+ */
+ protected Object[] pkValues() {
+ return model.pkValues();
+ }
+
+ /**
+ * @return BaseMapper
+ */
+ protected BaseMapper baseMapper() {
+ return model.baseMapper();
+ }
+
+ /**
+ * @return QueryWrapper
+ */
+ protected QueryWrapper queryWrapper() {
+ return model.queryWrapper();
+ }
+
+ /**
+ * 根据实体类主键获取一条数据。
+ *
+ * @return 数据
+ */
+ public abstract T oneById();
+
+ /**
+ * 根据实体类主键获取一条数据，并封装为 {@link Optional} 返回。
+ *
+ * @return 数据
+ */
+ public Optional oneByIdOpt() {
+ return Optional.ofNullable(oneById());
+ }
+
+ /**
+ * 根据实体类主键获取一条数据。
+ *
+ * @return 数据
+ */
+ public abstract R oneByIdAs(Class asType);
+
+ /**
+ * 根据实体类主键获取一条数据，并封装为 {@link Optional} 返回。
+ *
+ * @return 数据
+ */
+ public Optional oneByIdAsOpt(Class asType) {
+ return Optional.ofNullable(oneByIdAs(asType));
+ }
+
+ /**
+ * 根据实体类构建的条件获取一条数据。
+ *
+ * @return 数据
+ */
+ public abstract T one();
+
+ /**
+ * 根据实体类构建的条件获取一条数据，返回的数据为 asType 类型。
+ *
+ * @param asType 接收数据类型
+ * @return 数据
+ */
+ public abstract R oneAs(Class asType);
+
+ /**
+ * 根据实体类构建的条件获取一条数据，并封装为 {@link Optional} 返回。
+ *
+ * @return 数据
+ */
+ public Optional oneOpt() {
+ return Optional.ofNullable(one());
+ }
+
+ /**
+ * 根据实体类构建的条件获取一条数据，返回的数据为 asType 类型，并封装为 {@link Optional} 返回。
+ *
+ * @param asType 接收数据类型
+ * @return 数据
+ */
+ public Optional oneOptAs(Class asType) {
+ return Optional.ofNullable(oneAs(asType));
+ }
+
+ /**
+ * 根据实体类构建的条件获取多条数据。
+ *
+ * @return 数据列表
+ */
+ public abstract List list();
+
+ /**
+ * 根据实体类构建的条件获取多条数据，返回的数据为 asType 类型。
+ *
+ * @param asType 接收数据类型
+ * @return 数据列表
+ */
+ public abstract List listAs(Class asType);
+
+ /**
+ * 根据实体类构建的条件获取分页数据。
+ *
+ * @param page 分页对象
+ * @return 分页数据
+ */
+ public abstract Page page(Page page);
+
+ /**
+ * 根据实体类构建的条件获取分页数据，返回的数据为 asType 类型。
+ *
+ * @param page 分页对象
+ * @param asType 接收数据类型
+ * @return 分页数据
+ */
+ public abstract Page pageAs(Page page, Class asType);
+
+}