SANSORM Framework Application Guide: Implementing fast database operations in the Java class library
SANSORM framework application guide: realize fast database operations in the Java class library
Overview
With the increase of database operation requirements, it is essential to quickly and simply interacting with the database.Sansorm is a lightweight Java class library, which aims to simplify database operations and provide convenient and flexible ORM solutions.This article will introduce how to use the Sansorm framework to achieve fast database operations in Java.
1. Introduce Sansorm framework
First, the Sansorm framework and its related dependencies need to be introduced.You can add the following dependencies to the pom.xml file of the project:
<dependency>
<groupId>com.github.palantir.sansorm</groupId>
<artifactId>sansorm</artifactId>
<version>1.2.2</version>
</dependency>
Second, define the physical class
Before using sansorm for database operations, the corresponding physical class needs to be defined.Each entity class corresponds to a table in the database and a column in the table in each field.The following is a definition of a sample physical class:
import com.github.palantir.sansorm.annotations.Column;
import com.github.palantir.sansorm.annotations.Id;
import com.github.palantir.sansorm.annotations.Table;
@Table(name = "user")
public class User {
@Id
@Column(name = "id")
private int id;
@Column(name = "name")
private String name;
// Other fields and corresponding getter/setter methods omitted
}
In the physical class, the annotation provided by Sansorm specifies the mapping relationship between the physical class and the database table.@Table annotations are used to specify the name of the table, and@column annotations are used to specify the name of the column.
3. Database operation
Sansorm provides a set of simple APIs to perform database operations, including insertion, update, delete and query operations.
1. Insert data
The following is a sample code that inserted data inserted by sansorm:
import com.github.palantir.sansorm.SansOrm;
public class UserDao {
public void insertUser(User user) {
SansOrm.insert(user);
}
}
By calling Sansorm's INSERT method and passing into the object to be inserted, you can insert data to the database.
2. Update data
The following is a sample code to update the data with sansorm:
import com.github.palantir.sansorm.SansOrm;
public class UserDao {
public void updateUser(User user) {
SansOrm.update(user);
}
}
By calling Sansorm's update method and passing into the object to be updated, the data in the database can be updated.
3. Delete data
The following is an example code that uses Sansorm to delete data:
import com.github.palantir.sansorm.SansOrm;
public class UserDao {
public void deleteUser(User user) {
SansOrm.delete(user);
}
}
By calling the DELETE method of Sansorm and passing into the object to be deleted, the data in the database can be deleted.
4. Query data
The following is a sample code using sansorm to query data:
import com.github.palantir.sansorm.SansOrm;
public class UserDao {
public List<User> getAllUsers() {
return SansOrm.getAll(User.class);
}
public User getUserById(int id) {
return SansOrm.get(User.class, id);
}
}
By calling the Sansorm's getall method, you can obtain all the User objects in the database; by calling the GET method of Sansorm, and passing into the physical class and primary key value to be queried, you can obtain the corresponding user object in the database.
Summarize
By introducing the Sansorm framework, and according to the above steps, define the physical class and the API provided by using Sansorm, we can simplify the database operation in the Java library.The SANSORM framework provides a convenient and flexible ORM solution, making the database operation faster and simpler.
It is hoped that this article will help to achieve fast database operations using the SANSORM framework in the Java class library.
