https://github.com/finefuture/gazelle
一个小巧简便的Jpa组件
https://github.com/finefuture/gazelle
gazelle jpa
Last synced: 5 months ago
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一个小巧简便的Jpa组件
- Host: GitHub
- URL: https://github.com/finefuture/gazelle
- Owner: finefuture
- License: apache-2.0
- Created: 2018-01-08T02:00:50.000Z (over 8 years ago)
- Default Branch: master
- Last Pushed: 2018-03-23T03:17:48.000Z (over 8 years ago)
- Last Synced: 2025-07-31T08:33:23.431Z (11 months ago)
- Topics: gazelle, jpa
- Language: Java
- Homepage:
- Size: 467 KB
- Stars: 2
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# gazelle
[](https://www.apache.org/licenses/LICENSE-2.0.html)
**JPA** JPA(Java Persistence API)是Sun官方提出的Java持久化规范。它为Java开发人员提供了一种对象/关系映射工具来管理Java应用中的关系数据。
**gazelle** 是一款类似于Spring data jpa的组件，但是它提供了比Spring data jpa更多的功能。它是基于hibernate提供的JPA2.1规范的。
**gazelle提供了事务管理功能，一种是Jpa原生的TransactionManager，一种是植入的springTransactionManager**
**事务测试**
```java
@Transactional(rollbackFor = Exception.class)
public void testTX () {
shopRepository.delete("014A7A16-2297-474D-B3C4-D8F9B9E976A3");
shopRepository.delete("1111111111111");//这里会报错，将回滚
GazelleQuery.update(Shop.class)
.setter().set("shopName", "XXX").build()
.where().eq("id", "35847C13-40DE-4885-8FBE-2C1DD39F7860").build()
.execute();
}
```
#### 快速入门:
##### 工程依赖:
+ JDK1.7或更高版本
+ 依赖管理工具: Maven3.x版本/Gradle3.1以上版本
##### [最新版本OSS下载](https://oss.sonatype.org/#nexus-search;quick~io.github.finefuture)
##### [最新版本Maven中央仓库下载](http://search.maven.org/#search%7Cga%7C1%7Cio.github.finefuture%20gazelle)
##### Maven依赖:
```xml
io.github.finefuture
gazelle
2.1
```
### 使用简介 ###
##### 第一步. 咱们先配置gazelle（其实还有一步，先配置EntityManager,最后面的示例项目链接里面有）:
```java
@Configuration
@EnableGazelleRepository(basePackages = "org.gra4j.gazelleExample.crud.dao.jpa")
public class GazelleConfiguration {
@PersistenceContext
EntityManager entityManager;
@Autowired
PlatformTransactionManager tx;
@Bean
@PostConstruct
public Jpa jpa () {
Jpa jpa = new Jpa(entityManager);
JpaContext.setEntityManager(entityManager);
JpaContext.setTransactionType(TransactionalType.spring);//TransactionalType.jpa
JpaContext.setSpringTransactionManager(tx);
return jpa;
}
}
```
##### 第二步. 其实咱有两种方式运用gazelle 0.0，比如:
###### 第一种，使用dao层接口的方式(还有@TupleQuery、@Delete、@Update啊之类大家自己发掘啊)：
```java
public interface ShopRepository extends GazelleRepository {
@Query(@Where(and = @And({@Expression(ops = ExpressionOps.eq,key = "del"),
@Expression(ops = ExpressionOps.eq,key = "shopName")}),
// or = @Or({@Expression(ops = ExpressionOps.like,key = "id",value = "%BC85"),
// @Expression(ops = ExpressionOps.in)}),
order = @Order(asc = "createTime"),
check = {CheckOps.checkNullValue, CheckOps.checkEmptyValue}))
List find (@ExpParam Object del, @ExpParam Object shopName,
@PageParam(PageType.first) int first);
@SqlQuery(value = "select * from shop where del=:del order by create_time limit 10", isNative = true, result = Shop.class)
List find (@ExpParam("del") Integer del);
@Update(set = {"shopName"},where = @Where(and = @And(@Expression(ops = ExpressionOps.eq, key="shopName"))))
int update(@ExpParam Object shopName, @ModifyParam String name);
}
```
###### 第二种，使用GazelleQuery（这里面也有很多功能）：
```java
public List find () {
Shop one = (Shop) GazelleQuery.basic(Shop.class).findOne("5BD0E7D5-CE2A-4A8A-9261-363BFD928FBD");
System.out.println(one);
return GazelleQuery.query().nativeQuery("select * from Shop limit 10", Shop.class);
// return GazelleQuery.basic(Shop.class).findAll();
// Shop save = (Shop) GazelleQuery.basic(Shop.class).save(new Shop());
// return GazelleQuery.select(Shop.class).list();
}
```
##### [示例代码](https://github.com/finefuture/gazelle-example)
#### 其他
- qq交流群: 634217275
- 邮件交流: 1120170646@qq.com