SimpleJdbcInsert equivalent for update - spring

Question

I am using Spring's SimpleJdbcInsert class to create entities - eg:
final SimpleJdbcInsert insert = new SimpleJdbcInsert(dataSource).withTableName("abc");
insert.execute(new BeanPropertySqlParameterSource(abc));
Is there some equivalent of this class for doing updates? As an example, something like the below would be a convenient interface, assuming we are dealing with a single column primary key:
final SimpleJdbcUpdate update = new SimpleJdbcUpdate(dataSource).withTableName("abc").withIdColumn("abcId");
update.execute(new BeanPropertySqlParameterSource(abc));
Does Spring provide this functionality out-of-the-box somewhere?
Thanks
Jay

Answer 1

For any future readers - I came up with a convenience function using reflection;
Works for simple pojos:
public void dao_update(NamedParameterJdbcTemplate database, String table, Object pojo, String[] keys) {
StringBuilder sqlBuilder = new StringBuilder("UPDATE ");
sqlBuilder.append(table);
sqlBuilder.append(" SET ");
boolean first = true;
for (Field field : pojo.getClass().getDeclaredFields()) {
if (!first) {
sqlBuilder.append(",");
}
first = false;
sqlBuilder.append(field.getName());
sqlBuilder.append(" = :");
sqlBuilder.append(field.getName());
}
first = true;
for (String key : keys) {
if (first) {
sqlBuilder.append(" WHERE ");
} else {
sqlBuilder.append(" AND ");
}
first = false;
sqlBuilder.append(key);
sqlBuilder.append("= :");
sqlBuilder.append(key);
}
database.getJdbcOperations().update(sqlBuilder.toString(), new BeanPropertySqlParameterSource(pojo));
}
Example usage:
dao_update(database, "employee", my_employee, "id");
Generates:
UPDATE employee SET id = :id, name = :name, salary = :salary WHERE id = :id

Answer 2

There is an issue in the Spring JIRA about the lack of a SimpleJdbcUpdate class: https://jira.springsource.org/browse/SPR-4691. You might want to upvote it there.

Answer 3

You have to use JdbcTemplate
See: 13.2.1.1 Examples of JdbcTemplate class usage
E.X:
this.jdbcTemplate.update(
"update t_actor set = ? where id = ?",
"Banjo", 5276L);

Answer 4

You can get more similar effect by using SimpleJdbcTemplate instead of JdbcTemplate and by extending SimpleJdbcDaoSupport all DB operations can be put in one DAO class:
import java.util.List;
import javax.sql.DataSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.namedparam.BeanPropertySqlParameterSource;
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
import org.springframework.jdbc.core.namedparam.SqlParameterSource;
import org.springframework.jdbc.core.simple.SimpleJdbcDaoSupport;
import org.springframework.stereotype.Repository;
#Repository
public class BankDaoImpl extends SimpleJdbcDaoSupport implements BankDao {
#Autowired
public BankDaoImpl(#Qualifier("dataSource") DataSource dataSource) {
setDataSource(dataSource);
}
#Override
public void insert(Bank bank) {
String sql = "INSERT INTO BANK (id, oib, short_name, name, street, town, postal_code, homepage_url, last_change) VALUES (NEXT VALUE FOR bank_seq, :oib, :shortName, :name, :street, :town, :postalCode, :homepageUrl, CURRENT_TIMESTAMP)";
SqlParameterSource parameterSource = new BeanPropertySqlParameterSource(
bank);
getSimpleJdbcTemplate().update(sql, parameterSource);
}
#Override
public void update(Bank bank) {
String sql = "UPDATE BANK SET oib=:oib, short_name=:shortName, name=:name, street=:street, town=:town, postal_code=:postalCode, homepage_url=:homepageUrl, last_change=CURRENT_TIMESTAMP WHERE id=:id";
SqlParameterSource parameterSource = new BeanPropertySqlParameterSource(
bank);
getSimpleJdbcTemplate().update(sql, parameterSource);
}
#Override
public void delete(String id) {
String sql = "DELETE FROM BANK WHERE id=:id";
getSimpleJdbcTemplate().update(sql,
new MapSqlParameterSource("id", id));
}
#Override
public Bank findById(String id) {
String sql = "select b.ID, b.OIB, b.SHORT_NAME, b.NAME, b.STREET, b.TOWN, b.POSTAL_CODE, b.HOMEPAGE_URL, b.LAST_CHANGE, CASE WHEN count(f.id) = 0 THEN 0 ELSE 1 END AS ready " +
"from BANK WHERE b.ID = :id";
return getSimpleJdbcTemplate().queryForObject(sql,
BeanPropertyRowMapper.newInstance(Bank.class),
new MapSqlParameterSource("id", id));
}
}

Answer 5

The easy way to do this is:(source)
public void setName(int id, String name) {
this.jdbcTemplate.update("update mytable set name = ? where id = ?",
new Object[] {name, new Integer(id)});
}