MyBatis | INSERT | Passing an Object as a Parameter

Source code

TestTable.java

package sample.mybatis;

public class TestTable {
    private int id;
    private String value;

    public TestTable(String value) {
        this.value = value;
    }

    @Override
    public String toString() {
        return "TestTable [id=" + id + ", value=" + value + "]";
    }
}

Main.java

package sample.mybatis;

import java.io.InputStream;

import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

public class Main {

    public static void main(String[] args) throws Exception {
        try (InputStream in = Main.class.getResourceAsStream("/mybatis-config.xml")) {
            SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(in);

            try (SqlSession session = factory.openSession()) {
                TestTable table = new TestTable("fuga");

                session.insert("sample.mybatis.insertTest", table);
                session.commit();
            }
        }
    }
}

Execution result

[DEBUG] s.m.insertTest  - ==>  Preparing: insert into test_table ( value ) values ( ? ) 
[DEBUG] s.m.insertTest  - ==> Parameters: fuga(String)
[DEBUG] s.m.insertTest  - <==    Updates: 1

test_table

id value
1 hoge
2 fuga

Explanation

  • This is also the same as with <select>.
  • parameterType can be omitted.