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Add exercise15
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‎exercises/exercise15/DVDLibrary/build.gradle‎

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apply plugin: 'tomcat'
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buildscript {
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repositories {
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jcenter()
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}
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dependencies {
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classpath 'org.gradle.api.plugins:gradle-tomcat-plugin:1.0'
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}
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}
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repositories {
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mavenCentral()
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}
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dependencies {
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providedCompile 'javax.servlet:javax.servlet-api:3.1.0'
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compile 'org.springframework:spring-webmvc:4.0.0.RELEASE'
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compile 'org.springframework:spring-jdbc:4.0.0.RELEASE'
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compile 'org.springframework:spring-orm:4.0.0.RELEASE'
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compile 'org.hsqldb:hsqldb:2.3.1'
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runtime 'jstl:jstl:1.2'
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compile 'org.hibernate:hibernate-core:4.3.0.Final'
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compile group: 'com.google.guava', name: 'guava', version: '15.0'
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def tomcatVersion = '7.0.11'
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tomcat "org.apache.tomcat.embed:tomcat-embed-core:${tomcatVersion}",
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"org.apache.tomcat.embed:tomcat-embed-logging-juli:${tomcatVersion}"
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tomcat("org.apache.tomcat.embed:tomcat-embed-jasper:${tomcatVersion}") {
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exclude group: 'org.eclipse.jdt.core.compiler', module: 'ecj'
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}
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}

‎exercises/exercise15/DVDLibrary/gradle.properties‎

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org.gradle.jvmargs=-XX:MaxPermSize=256m

‎exercises/exercise15/DVDLibrary/src/main/java/tw/codedata/Director.java‎

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package tw.codedata;
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import javax.persistence.*;
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@Entity
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@Table(name="directors")
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public class Director {
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@Id
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@GeneratedValue(strategy = GenerationType.AUTO)
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private Long id;
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private String name;
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public Director() {}
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public Director(String name) {
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this.name = name;
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}
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public Long getId() {
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return id;
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}
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public void setId(Long id) {
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this.id = id;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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@Override
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public String toString() {
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return "Director{" + "id=" + id + ", name=" + name + '}';
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}
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}

‎exercises/exercise15/DVDLibrary/src/main/java/tw/codedata/DirectorDao.java‎

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package tw.codedata;
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import com.google.common.base.Optional;
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public interface DirectorDao {
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void saveDirector(Director director);
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Optional<Director> maybeFromName(String name);
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}

‎exercises/exercise15/DVDLibrary/src/main/java/tw/codedata/DirectorDaoHibernateImpl.java‎

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package tw.codedata;
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import com.google.common.base.Optional;
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import java.util.List;
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import org.hibernate.*;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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@Service
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public class DirectorDaoHibernateImpl implements DirectorDao {
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private SessionFactory sessionFactory;
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@Autowired
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public DirectorDaoHibernateImpl(SessionFactory sessionFactory) {
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this.sessionFactory = sessionFactory;
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}
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@Override
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public void saveDirector(Director director) {
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Session session = sessionFactory.openSession();
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session.beginTransaction();
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session.save(director);
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session.getTransaction().commit();
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session.close();
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}
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@Override
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public Optional<Director> maybeFromName(String name) {
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Session session = sessionFactory.openSession();
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session.beginTransaction();
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List<Director> directors =
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session
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.createQuery("from Director as d where d.name = :name")
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.setString("name", name).list();
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session.getTransaction().commit();
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session.close();
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return directors.isEmpty() ? Optional.<Director>absent() : Optional.of(directors.get(0));
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}
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}

‎exercises/exercise15/DVDLibrary/src/main/java/tw/codedata/Dvd.java‎

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package tw.codedata;
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import javax.persistence.*;
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@Entity
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@Table(name="dvds")
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public class Dvd {
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@Id
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@GeneratedValue(strategy = GenerationType.AUTO)
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private Long id;
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private String title;
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private Integer year;
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private Integer duration;
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@ManyToOne(cascade=CascadeType.ALL)
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@JoinColumn(name="director_id")
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private Director director;
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public Dvd() {}
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public Dvd(String title, Integer year, Integer duration, Director director) {
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this.title = title;
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this.year = year;
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this.duration = duration;
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this.director = director;
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}
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public Long getId() {
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return id;
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}
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public void setId(Long id) {
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this.id = id;
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}
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public String getTitle() {
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return title;
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}
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public void setTitle(String title) {
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this.title = title;
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}
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public Integer getYear() {
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return year;
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}
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public void setYear(Integer year) {
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this.year = year;
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}
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public Integer getDuration() {
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return duration;
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}
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public void setDuration(Integer duration) {
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this.duration = duration;
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}
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public Director getDirector() {
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return director;
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}
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public void setDirector(Director director) {
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this.director = director;
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}
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@Override
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public String toString() {
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return "Dvd{" +
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"id=" + id +
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", title=" + title +
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", year=" + year +
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", duration=" + duration +
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", director=" + director +
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'}';
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}
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}

‎exercises/exercise15/DVDLibrary/src/main/java/tw/codedata/DvdController.java‎

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package tw.codedata;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.Model;
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import org.springframework.web.bind.annotation.*;
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@Controller
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public class DvdController {
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private DvdLibraryService dvdLibraryService;
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@Autowired
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public void setDvdLibraryService(DvdLibraryService dvdLibraryService) {
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this.dvdLibraryService = dvdLibraryService;
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}
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public DvdLibraryService getDvdLibraryService() {
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return dvdLibraryService;
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}
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@RequestMapping("list")
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public String list(Model m) {
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m.addAttribute("dvds", getDvdLibraryService().allDvds());
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return "list";
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}
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@RequestMapping("add")
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public String add(
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@RequestParam("title") String title,
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@RequestParam("year") Integer year,
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@RequestParam("duration") Integer duration,
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@RequestParam("director") String director,
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Model m) {
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Dvd dvd = getDvdLibraryService().addDvd(title, year, duration, director);
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m.addAttribute("dvd", dvd);
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return "success";
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}
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}

‎exercises/exercise15/DVDLibrary/src/main/java/tw/codedata/DvdDao.java‎

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package tw.codedata;
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import java.util.List;
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public interface DvdDao {
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void saveDvd(Dvd dvd);
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List<Dvd> allDvds();
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}

‎exercises/exercise15/DVDLibrary/src/main/java/tw/codedata/DvdDaoHibernateImpl.java‎

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package tw.codedata;
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import java.util.List;
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import org.hibernate.Session;
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import org.hibernate.SessionFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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@Service
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public class DvdDaoHibernateImpl implements DvdDao {
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private SessionFactory sessionFactory;
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@Autowired
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public DvdDaoHibernateImpl(SessionFactory sessionFactory) {
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this.sessionFactory = sessionFactory;
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}
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@Override
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public void saveDvd(Dvd dvd) {
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Session session = sessionFactory.openSession();
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session.beginTransaction();
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session.save(dvd);
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session.getTransaction().commit();
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session.close();
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}
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@Override
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public List<Dvd> allDvds() {
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Session session = sessionFactory.openSession();
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session.beginTransaction();
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List<Dvd> dvds = session.createQuery("from Dvd").list();
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session.getTransaction().commit();
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session.close();
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return dvds;
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}
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}

‎exercises/exercise15/DVDLibrary/src/main/java/tw/codedata/DvdLibraryService.java‎

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package tw.codedata;
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import java.util.List;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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@Service
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public class DvdLibraryService {
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private DirectorDao directorDao;
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private DvdDao dvdDao;
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@Autowired
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public void setDirectorDao(DirectorDao directorDao) {
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this.directorDao = directorDao;
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}
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@Autowired
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public void setDvdDao(DvdDao dvdDao) {
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this.dvdDao = dvdDao;
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}
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public DirectorDao getDirectorDao() {
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return directorDao;
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}
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public DvdDao getDvdDao() {
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return dvdDao;
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}
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public List<Dvd> allDvds() {
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return getDvdDao().allDvds();
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}
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public Dvd addDvd(String title, Integer year, Integer duration, String directorName) {
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Director director = new Director(directorName);
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getDirectorDao().saveDirector(director);
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Dvd dvd = new Dvd(title, year, duration, director);
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getDvdDao().saveDvd(dvd);
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return dvd;
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}
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}

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