说是ORM框架，其实更该说是Android 数据库领域的 DSL 语言。（领域特定语言）
所以用起来自然超简约。
不多说了，Github地址：https://github.com/senyuyuan/Gluttony
文档如下：
Gluttony · 饕餮
Gluttony, a super convenient and simple library to using Android database
饕餮，高效而简约地使用Android数据库
Library is compatible with Kotlin 1.0.5-2 build.
饕餮 兼容 kotlin 1.0.5-2 版本（最新版）
Content · 目录
- Feature · 特性
- Install · 安装
- How to use · 如何使用
- Configuration · 配置
- Entities · 实体
- Save · 保存
- Find · 查询
- Update · 更新
- Delete · 删除
- Condition · 条件
Feature · 特性
* The core concept, friendly to human, Gluttony will give you the perfect experience
* 核心理念，对人类友好,Gluttony将会给您完美的使用体验
* Automatic table and column naming through reflection
* 通过反射自动建表
* Entities do not need any processing
* 实体类无需任何处理
* The future will provide two kinds of the kernel for your choice,
【sqlite】 and 【realm】, the performance of the pursuit of perfection
* 未来将会提供两种内核供您选择，【sqlite】以及【realm】，追求极致的性能
Install · 安装
as a gradle dependency
作为一个gradle依赖库
compile 'sen.yuan.dao:gluttony:1.1'
How to use · 如何使用
Configuration · 配置
//configure databaseName,cursorFactory,databaseVersion
//配置 数据库名称，cursorFactory，数据库版本
Gluttony.init(this, GluttonyConfig("gluttony_example",null,1))
In Application or the first Activity, initialize Gluttony.
在Application或是首个Activity中，初始化Gluttony·饕餮。
Entities · 实体
Entities do not need to do any processing.
实体类无需做任何处理。
Gluttony automatically for you to take care of everything.
Gluttony·饕餮 在数据库中自动为您打理好一切。
Annotation: @PrimaryKey is used to specify a PrimaryKey.
注解：@PrimaryKey 用来指定主键。
data class UserData(
@PrimaryKey
var id: Int = -1,
var name: String = "",
var age: Int = -1,
var isChildren: Boolean = false
)
Save · 保存
Save Entity directly · 直接保存实体
val user = UserData()
user.id = 666
user.name = "sen"
user.age = 23
user.isChildren = false
user.save()
//or
UserData(2, "john", 12, true).save()
Find · 查询
Find Entity based on PrimaryKey · 根据primary key 查询数据
val user1 = UserData().findOneByKey(666)
Find the first Entity based on Condition · 根据条件 查询第一个数据
val user2 = UserData().findOne {
condition {
"age" between 7..16
"isChild" Not false
}
orderBy("age", SqlOrderDirection.ASC)
}
Find all Entities based on Condition · 根据条件 查询所有数据，返回值为一个列表
val userList = UserData().findAll {
condition {
"age" moreThan 11
"name" like "s%" //find names witch is starting with "s"
}
}
Update · 更新
Update Entity directly base on PrimaryKey · 根据primary key 直接更新实体
var user3 = UserData().findOne { condition { "name" equalsData "lucy" } }!!
user3.age += 1
user3.update()
//or
var user4 = UserData(7, "lucy", 10, true) //user4.id == user3.id · 注意primary key相同
user4.update() //user4 will overwrite the old data · 将会覆盖掉旧数据
Update Entity directly or Save Entity when it doesn't exist · 直接 更新或保存实体 （如果实体是未保存过的话）
var user5 = UserData(90, "white", 77, false) // 90 is a new primary key
user5.updateOrSave() // Gluttony will save a new data
Update Entity based on PrimaryKey · 根据primary key 更新实体
//update user who id is 90 to named black,age 80
//lambda
UserData().updateByKey(90) { arrayOf("name" to "black", "age" to 80) }
//or pairs
UserData().updateByKey(90, "name" to "green", "age" to 82)
Update all Entities based on Condition · 根据条件 更新所有实体
//update user who name is green to name red,age 99
UserData().update("name" to "red", "age" to 99) {
condition {
"name" equalsData "green"
}
}
Delete · 删除
Delete Entity directly · 直接删除实体
var user9 = UserData(90) //only need primary key
user9.delete()
Delete Entity based on PrimaryKey · 根据primary key 删除实体
UserData().deleteByKey(666) //delete user which id is 666
Delete all Entities based on Condition · 根据条件 删除所有实体
//delete users who is child
UserData().delete {
condition {
"isChild" equalsData true
}
}
Clear one Class's entities · 清空一个类的所有实体
UserData().clear()
Condition · 条件
equalsData · 等于
moreThan · 大于
moreThanOrEquals · 大于等于
lessThan · 小于
lessThanOrEquals · 小于等于
Not · 非
In: Determine whether in the array · 判断是否在数组中
notIn: Determine whether not in the array
between: Determine whether in the range
like: fuzzy query · 模糊查询
two marks: % and _ · 两个通配符：% 和 _
% : indefinite amount content · 不定数量的内容
_ : one amount content · 一个位置的内容
for example: "gluttony%" -> find values witch is starting with "gluttony"
例如，"gluttony%" -> 查询所有以"gluttony"开头的数据
