MyEclipse 下开发JSF教程(4)

Furthermore you have to add a constrUCtor, which set the properties if you initialisize the instance variable of the newly object.

The following source code show the class book.

public class Book implements Serializable {

//------------------ Properties--------------------------------
private long id;
private String author;
private String title;
private boolean available;

//------------------ ConstrUCtors--------------------------------
public Book(){}
public Book(long id, String author, String title, boolean available){ 
this.id = id;
this.author = author;
this.title = title;
this.available = available;
}

//------------------ Getter and setter methods ---------------------

public String getAuthor() {
return author;
}
public void setAuthor(String author) {
this.author = author;
}
public boolean isAvailable() {
return available;
}
public void setAvailable(boolean available) {
this.available = available;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
}

Add a getter and setter for the class.

/**
 * Set the properties
 * @param book
 */
public void setBook(Book book){
this.setId(book.getId());
this.setAuthor(book.getAuthor());
this.setTitle(book.getTitle());
this.setAvailable(book.isAvailable());
}

/**
 * @return book object 
 */
public Book getBook(){

return new Book(this.getId(), 
this.getAuthor(), 
this.getTitle(), 
this.isAvailable());
}

The database class

We use a class to provide some test data without using a database. Download the sample application of this tutorial and copy the class SimulateDB.Java find in the folder src/de/laliluna/tutorial/library/ in the package de.laliluna.tutorial.library.

The class BookList

Create a futher class BookList in the package de.laliluna.library. This class inlcudes the property books, which represent the list of books. Generate a getter- and seter-method for the property books and change the getter-method like the following.

public class BookList {