アプリケーションでjqueryでSpring、hibernate、jsfを使用しています。Hibernateの保存クエリを介してデータベースにQuestionオブジェクトを挿入しています。質問オブジェクトには、id、question、answertype、およびform_idを使用したフォームオブジェクトへの参照が含まれます。ここで、指定されたインデックス位置にある質問オブジェクトのリストに格納されている値を変更することにより、データベースに格納されている質問オブジェクトの値を変更したいと思います。リストの値を変更しても、データベースの値は更新クエリによって変更されません。アドバイスをお願いします。
Question.javaパッケージcom.otv.model;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
import org.apache.commons.lang.builder.ToStringBuilder;
@Entity
@Table(name = "questions")
public class Question implements Serializable {
@Id
@GeneratedValue
@Column(name = "id", unique = true, nullable = false)
private int id;
@Column(name = "question", nullable = false)
private String text;
@Column(name = "answertype", nullable = false)
private String answertype;
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "form_id")
private Form form;
// @JoinColumn(name = "form_id")
// private int formId;
public Question() {
}
public Question(String text, String answertype) {
this.text = text;
this.answertype = answertype;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getQuestion() {
return text;
}
public void setQuestion(String question) {
this.text = question;
}
public String getAnswertype() {
return answertype;
}
public void setAnswertype(String answertype) {
this.answertype = answertype;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((answertype == null) ? 0 : answertype.hashCode());
result = prime * result + id;
result = prime * result + ((text == null) ? 0 : text.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Question other = (Question) obj;
if (answertype == null) {
if (other.answertype != null)
return false;
} else if (!answertype.equals(other.answertype))
return false;
if (id != other.id)
return false;
if (text == null) {
if (other.text != null)
return false;
} else if (!text.equals(other.text))
return false;
return true;
}
public void setForm(Form form) {
this.form = form;
}
@Override
public String toString() {
return ToStringBuilder.reflectionToString(this);
}
}
Form.java
package com.otv.model;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import org.apache.commons.lang.builder.ToStringBuilder;
@Entity
@Table(name = "FORM")
public class Form implements Serializable {
@Id
@GeneratedValue
@Column(name = "id", unique = true, nullable = false)
private int id;
@Column(name = "name", nullable = false)
private String name;
@Column(name = "description", nullable = false)
private String description;
@OneToMany(mappedBy = "form", fetch = FetchType.EAGER, cascade = CascadeType.ALL)
List<Question> questions = new ArrayList<Question>();
public Form(String name) {
super();
this.name = name;
}
public Form() {
super();
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public List<Question> getQuestions() {
return questions;
}
public void setQuestions(List<Question> formQuestions) {
this.questions = formQuestions;
}
public void addQuestion(Question question) {
questions.add(question);
question.setForm(this);
}
public void removeQuestion(Question question) {
questions.remove(question);
question.setForm(this);
}
@Override
public String toString() {
return ToStringBuilder.reflectionToString(this);
}
public void replaceQuestion(int index, Question question) {
Question prevQuestion = questions.get(index);
// prevQuestion.setQuestion(question.getQuestion());
// prevQuestion.setAnswertype(question.getAnswertype());
question.setId(prevQuestion.getId());
question.setForm(this);
questions.set(index, question);
}
}
QuestionDAO.java
package com.otv.user.dao;
import java.util.List;
import org.hibernate.SessionFactory;
import com.otv.model.Question;
public class QuestionDAO implements IQuestionDAO {
private SessionFactory sessionFactory;
public SessionFactory getSessionFactory() {
return sessionFactory;
}
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
public void addQuestion(Question question) {
getSessionFactory().getCurrentSession().save(question);
}
public void deleteQuestion(Question question) {
getSessionFactory().getCurrentSession().delete(question);
}
public void updateQuestion(Question question) {
getSessionFactory().getCurrentSession().update(question);
}
public Question getQuestionById(int id) {
List list = getSessionFactory().getCurrentSession().createQuery("from Questions where id=?")
.setParameter(0, id).list();
return (Question) list.get(0);
}
}