How to pass an Integer Array to IN clause in MyBatis

Question

There is a query in my Mybatis containing an IN clause which is basically a set of Id\'s ( Integers)

I am now stuck on how can I pass an Integer array to this IN cla

Answer 1

You can create a new type handler and use it only for your parameter. The query would change to:

SELECT ... WHERE FIND_IN_SET(id, #{usrIds, typeHandler=my.pkg.ListTypeHandler}) <> 0

And the type handler:

import java.sql.PreparedStatement;
import java.sql.SQLException;

import org.apache.ibatis.type.JdbcType;
import org.apache.ibatis.type.ObjectTypeHandler;

import com.google.common.base.Joiner;

public class ListTypeHandler extends ObjectTypeHandler {
    @Override
    public void setParameter(PreparedStatement ps, int i, Object parameter, JdbcType jdbcType) throws SQLException {
        ps.setObject(i, Joiner.on(",").join((Iterable) parameter), JdbcType.OTHER.TYPE_CODE);
    }
}