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minor cleanup formatting work

This commit is contained in:
eugenp 2015-01-24 15:50:51 +02:00
parent 07f20a87bf
commit 4ad6cc93f2
6 changed files with 134 additions and 165 deletions
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16
spring-all/src/main/java/org/baeldung/jdbc/CustomSQLErrorCodeTranslator.java
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@ -6,18 +6,14 @@ import org.springframework.dao.DataAccessException;
import org.springframework.dao.DuplicateKeyException;
import org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator;
public class CustomSQLErrorCodeTranslator extends
SQLErrorCodeSQLExceptionTranslator {
public class CustomSQLErrorCodeTranslator extends SQLErrorCodeSQLExceptionTranslator {
@Override
protected DataAccessException customTranslate(final String task,
final String sql, final SQLException sqlException) {
if (sqlException.getErrorCode() == -104) {
return new DuplicateKeyException(
"Custome Exception translator - Integrity contraint voilation.",
sqlException);
}
return null;
protected DataAccessException customTranslate(final String task, final String sql, final SQLException sqlException) {
if (sqlException.getErrorCode() == -104) {
return new DuplicateKeyException("Custome Exception translator - Integrity contraint voilation.", sqlException);
}
return null;
}
}

16
spring-all/src/main/java/org/baeldung/jdbc/Employee.java
View File

@ -10,35 +10,35 @@ public class Employee {
private String address;
public int getId() {
return id;
return id;
}
public void setId(final int id) {
this.id = id;
this.id = id;
}
public String getFirstName() {
return firstName;
return firstName;
}
public void setFirstName(final String firstName) {
this.firstName = firstName;
this.firstName = firstName;
}
public String getLastName() {
return lastName;
return lastName;
}
public void setLastName(final String lastName) {
this.lastName = lastName;
this.lastName = lastName;
}
public String getAddress() {
return address;
return address;
}
public void setAddress(final String address) {
this.address = address;
this.address = address;
}
}

101
spring-all/src/main/java/org/baeldung/jdbc/EmployeeDAO.java
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@ -30,103 +30,84 @@ public class EmployeeDAO {
@Autowired
public void setDataSource(final DataSource dataSource) {
jdbcTemplate = new JdbcTemplate(dataSource);
final CustomSQLErrorCodeTranslator customSQLErrorCodeTranslator = new CustomSQLErrorCodeTranslator();
jdbcTemplate.setExceptionTranslator(customSQLErrorCodeTranslator);
jdbcTemplate = new JdbcTemplate(dataSource);
final CustomSQLErrorCodeTranslator customSQLErrorCodeTranslator = new CustomSQLErrorCodeTranslator();
jdbcTemplate.setExceptionTranslator(customSQLErrorCodeTranslator);
namedParameterJdbcTemplate = new NamedParameterJdbcTemplate(dataSource);
simpleJdbcInsert = new SimpleJdbcInsert(dataSource)
.withTableName("EMPLOYEE");
namedParameterJdbcTemplate = new NamedParameterJdbcTemplate(dataSource);
simpleJdbcInsert = new SimpleJdbcInsert(dataSource).withTableName("EMPLOYEE");
}
public int getCountOfEmployees() {
return jdbcTemplate.queryForObject("SELECT COUNT(*) FROM EMPLOYEE",
Integer.class);
return jdbcTemplate.queryForObject("SELECT COUNT(*) FROM EMPLOYEE", Integer.class);
}
public List<Employee> getAllEmployees() {
return jdbcTemplate.query("SELECT * FROM EMPLOYEE",
new EmployeeRowMapper());
return jdbcTemplate.query("SELECT * FROM EMPLOYEE", new EmployeeRowMapper());
}
public int addEmplyee(final int id) {
return jdbcTemplate.update("INSERT INTO EMPLOYEE VALUES (?, ?, ?, ?)",
id, "Bill", "Gates", "USA");
return jdbcTemplate.update("INSERT INTO EMPLOYEE VALUES (?, ?, ?, ?)", id, "Bill", "Gates", "USA");
}
public int addEmplyeeUsingSimpelJdbcInsert(final Employee emp) {
final Map<String, Object> parameters = new HashMap<String, Object>();
parameters.put("ID", emp.getId());
parameters.put("FIRST_NAME", emp.getFirstName());
parameters.put("LAST_NAME", emp.getLastName());
parameters.put("ADDRESS", emp.getAddress());
final Map<String, Object> parameters = new HashMap<String, Object>();
parameters.put("ID", emp.getId());
parameters.put("FIRST_NAME", emp.getFirstName());
parameters.put("LAST_NAME", emp.getLastName());
parameters.put("ADDRESS", emp.getAddress());
return simpleJdbcInsert.execute(parameters);
return simpleJdbcInsert.execute(parameters);
}
public Employee getEmployee(final int id) {
final String query = "SELECT * FROM EMPLOYEE WHERE ID = ?";
return jdbcTemplate.queryForObject(query, new Object[] { id },
new EmployeeRowMapper());
final String query = "SELECT * FROM EMPLOYEE WHERE ID = ?";
return jdbcTemplate.queryForObject(query, new Object[] { id }, new EmployeeRowMapper());
}
public void addEmplyeeUsingExecuteMethod() {
jdbcTemplate
.execute("INSERT INTO EMPLOYEE VALUES (6, 'Bill', 'Gates', 'USA')");
jdbcTemplate.execute("INSERT INTO EMPLOYEE VALUES (6, 'Bill', 'Gates', 'USA')");
}
public String getEmployeeUsingMapSqlParameterSource() {
final SqlParameterSource namedParameters = new MapSqlParameterSource()
.addValue("id", 1);
final SqlParameterSource namedParameters = new MapSqlParameterSource().addValue("id", 1);
return namedParameterJdbcTemplate.queryForObject(
"SELECT FIRST_NAME FROM EMPLOYEE WHERE ID = :id",
namedParameters, String.class);
return namedParameterJdbcTemplate.queryForObject("SELECT FIRST_NAME FROM EMPLOYEE WHERE ID = :id", namedParameters, String.class);
}
public int getEmployeeUsingBeanPropertySqlParameterSource() {
final Employee employee = new Employee();
employee.setFirstName("James");
final Employee employee = new Employee();
employee.setFirstName("James");
final String SELECT_BY_ID = "SELECT COUNT(*) FROM EMPLOYEE WHERE FIRST_NAME = :firstName";
final String SELECT_BY_ID = "SELECT COUNT(*) FROM EMPLOYEE WHERE FIRST_NAME = :firstName";
final SqlParameterSource namedParameters = new BeanPropertySqlParameterSource(
employee);
final SqlParameterSource namedParameters = new BeanPropertySqlParameterSource(employee);
return namedParameterJdbcTemplate.queryForObject(SELECT_BY_ID,
namedParameters, Integer.class);
return namedParameterJdbcTemplate.queryForObject(SELECT_BY_ID, namedParameters, Integer.class);
}
public int[] batchUpdateUsingJDBCTemplate(final List<Employee> employees) {
return jdbcTemplate.batchUpdate(
"INSERT INTO EMPLOYEE VALUES (?, ?, ?, ?)",
new BatchPreparedStatementSetter() {
return jdbcTemplate.batchUpdate("INSERT INTO EMPLOYEE VALUES (?, ?, ?, ?)", new BatchPreparedStatementSetter() {
@Override
public void setValues(final PreparedStatement ps,
final int i) throws SQLException {
ps.setInt(1, employees.get(i).getId());
ps.setString(2, employees.get(i).getFirstName());
ps.setString(3, employees.get(i).getLastName());
ps.setString(4, employees.get(i).getAddress());
}
@Override
public void setValues(final PreparedStatement ps, final int i) throws SQLException {
ps.setInt(1, employees.get(i).getId());
ps.setString(2, employees.get(i).getFirstName());
ps.setString(3, employees.get(i).getLastName());
ps.setString(4, employees.get(i).getAddress());
}
@Override
public int getBatchSize() {
return 3;
}
});
@Override
public int getBatchSize() {
return 3;
}
});
}
public int[] batchUpdateUsingNamedParameterJDBCTemplate(
final List<Employee> employees) {
final SqlParameterSource[] batch = SqlParameterSourceUtils
.createBatch(employees.toArray());
final int[] updateCounts = namedParameterJdbcTemplate
.batchUpdate(
"INSERT INTO EMPLOYEE VALUES (:id, :firstName, :lastName, :address)",
batch);
return updateCounts;
public int[] batchUpdateUsingNamedParameterJDBCTemplate(final List<Employee> employees) {
final SqlParameterSource[] batch = SqlParameterSourceUtils.createBatch(employees.toArray());
final int[] updateCounts = namedParameterJdbcTemplate.batchUpdate("INSERT INTO EMPLOYEE VALUES (:id, :firstName, :lastName, :address)", batch);
return updateCounts;
}
}

15
spring-all/src/main/java/org/baeldung/jdbc/EmployeeRowMapper.java
View File

@ -8,15 +8,14 @@ import org.springframework.jdbc.core.RowMapper;
public class EmployeeRowMapper implements RowMapper<Employee> {
@Override
public Employee mapRow(final ResultSet rs, final int rowNum)
throws SQLException {
final Employee employee = new Employee();
public Employee mapRow(final ResultSet rs, final int rowNum) throws SQLException {
final Employee employee = new Employee();
employee.setId(rs.getInt("ID"));
employee.setFirstName(rs.getString("FIRST_NAME"));
employee.setLastName(rs.getString("LAST_NAME"));
employee.setAddress(rs.getString("ADDRESS"));
employee.setId(rs.getInt("ID"));
employee.setFirstName(rs.getString("FIRST_NAME"));
employee.setLastName(rs.getString("LAST_NAME"));
employee.setAddress(rs.getString("ADDRESS"));
return employee;
return employee;
}
}

16
spring-all/src/main/java/org/baeldung/jdbc/config/SpringJdbcConfig.java
View File

@ -15,20 +15,18 @@ public class SpringJdbcConfig {
@Bean
public DataSource dataSource() {
return new EmbeddedDatabaseBuilder().setType(EmbeddedDatabaseType.HSQL)
.addScript("classpath:jdbc/schema.sql")
.addScript("classpath:jdbc/test-data.sql").build();
return new EmbeddedDatabaseBuilder().setType(EmbeddedDatabaseType.HSQL).addScript("classpath:jdbc/schema.sql").addScript("classpath:jdbc/test-data.sql").build();
}
// @Bean
public DataSource mysqlDataSource() {
final DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName("com.mysql.jdbc.Driver");
dataSource.setUrl("jdbc:mysql://localhost:3306/springjdbc");
dataSource.setUsername("guest_user");
dataSource.setPassword("guest_password");
final DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName("com.mysql.jdbc.Driver");
dataSource.setUrl("jdbc:mysql://localhost:3306/springjdbc");
dataSource.setUsername("guest_user");
dataSource.setPassword("guest_password");
return dataSource;
return dataSource;
}
}

135
spring-all/src/test/java/org/baeldung/jdbc/EmployeeDAOTest.java
View File

@ -22,123 +22,118 @@ public class EmployeeDAOTest {
@Test
public void testGetCountOfEmployees() {
Assert.assertEquals(employeeDao.getCountOfEmployees(), 9);
Assert.assertEquals(employeeDao.getCountOfEmployees(), 9);
}
@Test
public void testQueryMethod() {
Assert.assertEquals(employeeDao.getAllEmployees().size(), 4);
Assert.assertEquals(employeeDao.getAllEmployees().size(), 4);
}
@Test
public void testUpdateMethod() {
Assert.assertEquals(employeeDao.addEmplyee(5), 1);
Assert.assertEquals(employeeDao.addEmplyee(5), 1);
}
@Test
public void testAddEmployeeUsingSimpelJdbcInsert() {
final Employee emp = new Employee();
emp.setId(11);
emp.setFirstName("testFirstName");
emp.setLastName("testLastName");
emp.setAddress("testAddress");
final Employee emp = new Employee();
emp.setId(11);
emp.setFirstName("testFirstName");
emp.setLastName("testLastName");
emp.setAddress("testAddress");
Assert.assertEquals(employeeDao.addEmplyeeUsingSimpelJdbcInsert(emp), 1);
Assert.assertEquals(employeeDao.addEmplyeeUsingSimpelJdbcInsert(emp), 1);
}
@Test
public void testExecuteMethod() {
employeeDao.addEmplyeeUsingExecuteMethod();
employeeDao.addEmplyeeUsingExecuteMethod();
}
@Test
public void testMapSqlParameterSource() {
Assert.assertEquals("James",
employeeDao.getEmployeeUsingMapSqlParameterSource());
Assert.assertEquals("James", employeeDao.getEmployeeUsingMapSqlParameterSource());
}
@Test
public void testBeanPropertySqlParameterSource() {
Assert.assertEquals(1,
employeeDao.getEmployeeUsingBeanPropertySqlParameterSource());
Assert.assertEquals(1, employeeDao.getEmployeeUsingBeanPropertySqlParameterSource());
}
@Test
public void testCustomExceptionTranslator() {
employeeDao.addEmplyee(7);
employeeDao.addEmplyee(7);
try {
employeeDao.addEmplyee(7);
} catch (final DuplicateKeyException e) {
System.out.println(e.getMessage());
Assert.assertTrue(e
.getMessage()
.contains(
"Custome Exception translator - Integrity contraint voilation."));
}
try {
employeeDao.addEmplyee(7);
} catch (final DuplicateKeyException e) {
System.out.println(e.getMessage());
Assert.assertTrue(e.getMessage().contains("Custome Exception translator - Integrity contraint voilation."));
}
}
@Test
public void testBatchUpdateUsingJDBCTemplate() {
final List<Employee> employees = new ArrayList<Employee>();
final Employee emp1 = new Employee();
emp1.setId(10);
emp1.setFirstName("firstName1");
emp1.setLastName("lastName1");
emp1.setAddress("address1");
final List<Employee> employees = new ArrayList<Employee>();
final Employee emp1 = new Employee();
emp1.setId(10);
emp1.setFirstName("firstName1");
emp1.setLastName("lastName1");
emp1.setAddress("address1");
final Employee emp2 = new Employee();
emp2.setId(20);
emp2.setFirstName("firstName2");
emp2.setLastName("lastName2");
emp2.setAddress("address2");
final Employee emp2 = new Employee();
emp2.setId(20);
emp2.setFirstName("firstName2");
emp2.setLastName("lastName2");
emp2.setAddress("address2");
final Employee emp3 = new Employee();
emp3.setId(30);
emp3.setFirstName("firstName3");
emp3.setLastName("lastName3");
emp3.setAddress("address3");
final Employee emp3 = new Employee();
emp3.setId(30);
emp3.setFirstName("firstName3");
emp3.setLastName("lastName3");
emp3.setAddress("address3");
employees.add(emp1);
employees.add(emp2);
employees.add(emp3);
employees.add(emp1);
employees.add(emp2);
employees.add(emp3);
employeeDao.batchUpdateUsingJDBCTemplate(employees);
employeeDao.batchUpdateUsingJDBCTemplate(employees);
Assert.assertTrue(employeeDao.getEmployee(10) != null);
Assert.assertTrue(employeeDao.getEmployee(20) != null);
Assert.assertTrue(employeeDao.getEmployee(30) != null);
Assert.assertTrue(employeeDao.getEmployee(10) != null);
Assert.assertTrue(employeeDao.getEmployee(20) != null);
Assert.assertTrue(employeeDao.getEmployee(30) != null);
}
@Test
public void testBatchUpdateUsingNamedParameterJDBCTemplate() {
final List<Employee> employees = new ArrayList<Employee>();
final Employee emp1 = new Employee();
emp1.setId(40);
emp1.setFirstName("firstName4");
emp1.setLastName("lastName4");
emp1.setAddress("address4");
final List<Employee> employees = new ArrayList<Employee>();
final Employee emp1 = new Employee();
emp1.setId(40);
emp1.setFirstName("firstName4");
emp1.setLastName("lastName4");
emp1.setAddress("address4");
final Employee emp2 = new Employee();
emp2.setId(50);
emp2.setFirstName("firstName5");
emp2.setLastName("lastName5");
emp2.setAddress("address5");
final Employee emp2 = new Employee();
emp2.setId(50);
emp2.setFirstName("firstName5");
emp2.setLastName("lastName5");
emp2.setAddress("address5");
final Employee emp3 = new Employee();
emp3.setId(60);
emp3.setFirstName("firstName6");
emp3.setLastName("lastName6");
emp3.setAddress("address6");
final Employee emp3 = new Employee();
emp3.setId(60);
emp3.setFirstName("firstName6");
emp3.setLastName("lastName6");
emp3.setAddress("address6");
employees.add(emp1);
employees.add(emp2);
employees.add(emp3);
employees.add(emp1);
employees.add(emp2);
employees.add(emp3);
employeeDao.batchUpdateUsingNamedParameterJDBCTemplate(employees);
employeeDao.batchUpdateUsingNamedParameterJDBCTemplate(employees);
Assert.assertTrue(employeeDao.getEmployee(40) != null);
Assert.assertTrue(employeeDao.getEmployee(50) != null);
Assert.assertTrue(employeeDao.getEmployee(60) != null);
Assert.assertTrue(employeeDao.getEmployee(40) != null);
Assert.assertTrue(employeeDao.getEmployee(50) != null);
Assert.assertTrue(employeeDao.getEmployee(60) != null);
}
}