逻辑后缀字段

查询对象中，字段名称以And/Or结尾的字段被称为逻辑后缀字段。默认情况下，查询对象各个字段对应的查询条件之间通过AND连接，通过为字段定义And/Or后缀可以指定连接查询条件的逻辑运算符。定义如下：

public class UserQuery extends PageQuery {
    // ...

    private List<String> nameStartOr;
    private UserQuery userOr;
    private List<UserQuery> usersOr;

    private UserQuery userAnd;
}

后缀Or

当字段的名称以Or结尾时，连接查询条件的逻辑运算符为OR，支持以下三种字段类型：

• List<String> nameStartOr;

UserQuery userQuery = UserQuery.builder().nameStartOr(List.of("Bob","John","Tim")).build();
List<UserEntity> users = userDataAccess.query(userQuery);
// SQL="SELECT id, name, score, memo, deleted FROM t_user 
// WHERE (name LIKE ? OR name LIKE ? OR name LIKE ?)" args="[Bob% John% Tim%]"

• UserQuery userOr;

UserQuery userQuery = UserQuery.builder().nameStartOr(Arrays.asList(1, 4, 12)).deleted(trur).build();
List<UserEntity> users = userDataAccess.query(userQuery);
// SQL="SELECT id, name, score, memo, deleted FROM t_user 
// WHERE (id IN (?, ?, ?) OR deleted = ?)" args="[1 4 12 true]"

• List<UserQuery> usersOr;

UserQuery userQuery = UserQuery.builder()
    .usersOr(List.of(
        UserQuery.builder().idIn(List.of(1L, 4L, 12L)).deleted(true).build(),
        UserQuery.builder().idGt(10L).deleted(false).build()
    )).build();
List<UserEntity> users = userDataAccess.query(userQuery);
// SQL="SELECT id, name, score, memo, deleted FROM t_user
// WHERE (id IN (?, ?, ?) AND deleted = ? OR id > ? AND deleted = ?)"
// args="[1 4 12 true 10 false]"

后缀And

当字段的名称以And结尾时，连接多个查询条件的逻辑运算符为AND。示例如下：

UserQuery userAnd = UserQuery.builder().idIn(List.of(1L, 4L, 12L)).deleted(false).build();
UserQuery userOr = UserQuery.builder().deleted(true).userAnd(userAnd).build();
UserQuery userQuery = UserQuery.builder().scoreLt(80).userOr(userOr).build();
List<UserEntity> users = userDataAccess.query(userQuery);
// SQL="SELECT id, name, score, memo, deleted FROM t_user
// WHERE score < ? AND (deleted = ? OR id IN (?, ?, ?) AND deleted = ?)"
// args="[80 true 1 4 12 false]"

相关文章

在DoytoQuery中怎么表达select * from t where id = ? or (name = ? and age = ?)