Admin: 1 версия

2010-06-01T06:16:33Z

1 версия

в 18:01, 31 мая 2010

2010-05-31T18:01:44Z

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== BasicDataSource from apache ==



<source lang="java">

File: EmployeeDaoImpl.java
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import javax.sql.DataSource;
import org.springframework.jdbc.core.SqlParameter;
import org.springframework.jdbc.core.support.JdbcDaoSupport;
import org.springframework.jdbc.object.MappingSqlQuery;
import org.springframework.jdbc.support.nativejdbc.SimpleNativeJdbcExtractor;
public class EmployeeDaoImpl extends JdbcDaoSupport {
private LastNameAndAgeQuery lastNameAndAgeQuery;
protected void initDao() throws Exception {
super.initDao();
getJdbcTemplate().setNativeJdbcExtractor(new SimpleNativeJdbcExtractor());
lastNameAndAgeQuery = new LastNameAndAgeQuery(getDataSource());
}
public List getEmployeesForLastNameAndAge(String lastName, Integer age) {
return lastNameAndAgeQuery.execute(new Object[] { lastName, age });
}
}
class LastNameAndAgeQuery extends MappingSqlQuery {
private static final String SQL_QUERY = "SELECT * FROM employee WHERE name_last = ? AND age = ?";
public LastNameAndAgeQuery(DataSource ds) {
super(ds, SQL_QUERY);
declareParameter(new SqlParameter("name_last", Types.VARCHAR));
declareParameter(new SqlParameter("age", Types.INTEGER));
compile();
}
protected Object mapRow(ResultSet resultSet, int row) throws SQLException {
Employee employee = new Employee();
employee.setId(resultSet.getInt("id"));
employee.getName().setFirst(resultSet.getString("name_first"));
employee.getName().setMiddle(resultSet.getString("name_middle"));
employee.getName().setLast(resultSet.getString("name_last"));
employee.getAddress().setLine1(resultSet.getString("address_line1"));
employee.getAddress().setLine2(resultSet.getString("address_line2"));
employee.getAddress().setCity(resultSet.getString("address_city"));
employee.getAddress().setState(resultSet.getString("address_state"));
employee.getAddress().setZip(resultSet.getString("address_zip"));
employee.setAge(resultSet.getInt("age"));
return employee;
}
}
class Employee {
private Integer id;
private Name name = new Name();
private Integer age;
private Sex sex;
private Address address = new Address();
private List<PhoneNumber> phoneNumbers = new ArrayList<PhoneNumber>();
public Employee() {
}
public Employee(String firstName, String lastName) {
this.getName().setFirst(firstName);
this.getName().setLast(lastName);
}
void setId(Integer id) {
this.id = id;
}
public Integer getId() {
return id;
}
public Address getAddress() {
return address;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public Name getName() {
return name;
}
public List<PhoneNumber> getPhoneNumbers() {
return Collections.unmodifiableList(phoneNumbers);
}
public void addPhoneNumber(PhoneNumber phoneNumber) {
this.phoneNumbers.add(phoneNumber);
}
public void removePhoneNumber(PhoneNumber phoneNumber) {
this.phoneNumbers.remove(phoneNumber);
}
public void removePhoneNumber(int index) {
this.phoneNumbers.remove(index);
}
public Sex getSex() {
return sex;
}
public void setSex(Sex sex) {
this.sex = sex;
}
}
abstract class Sex {
public static final Sex MALE = new Male();
public static final Sex FEMALE = new Female();
public boolean equals(Object o) {
if (o == null) {
return false;
}
return getClass().equals(o.getClass());
}
}
class PhoneNumber {
}
class Address {
private String line1;
private String line2;
private String city;
private String state;
private String zip;
public void setLine1(String line1) {
this.line1 = line1;
}
public String getLine1() {
return this.line1;
}
public void setLine2(String line2) {
this.line2 = line2;
}
public String getLine2() {
return this.line2;
}
public void setCity(String city) {
this.city = city;
}
public String getCity() {
return this.city;
}
public void setState(String state) {
this.state = state;
}
public String getState() {
return this.state;
}
public void setZip(String zip) {
this.zip = zip;
}
public String getZip() {
return this.zip;
}
}
final class Male extends Sex {
protected Male() {
}
}
final class Female extends Sex {
protected Female() {
}
}
class Name {
private String first;
private String middle;
private String last;
public void setFirst(String first) {
this.first = first;
}
public String getFirst() {
return this.first;
}
public void setMiddle(String middle) {
this.middle = middle;
}
public String getMiddle() {
return this.middle;
}
public void setLast(String last) {
this.last = last;
}
public String getLast() {
return this.last;
}
}

File: Main.java
import java.util.Date;
import java.util.GregorianCalendar;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
class Main {
public static void main(String args[]) throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext(
"context.xml");
EmployeeDaoImpl ws = (EmployeeDaoImpl) ctx.getBean("employeeDao");
}
}

File: context.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
"http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="dataSource" class="org.apache.rumons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="org.hsqldb.jdbcDriver"/>
<property name="url" value="jdbc:hsqldb:mem:."/>
<property name="username" value="sa"/>
<property name="password" value=""/>
</bean>
<bean id="employeeDao" class="EmployeeDaoImpl">
<property name="dataSource" ref="dataSource"/>
</bean>
</beans>

</source>

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Admin: 1 версия

в 18:01, 31 мая 2010