threadbean.java

用java编写的留言版

package com.bitterjava.bbs.ejb;

import java.rmi.RemoteException;
import java.security.Identity;
import java.util.Properties;
import javax.ejb.*;
/**
 * This is an Entity Bean class with CMP fields
 */
public class ThreadBean implements EntityBean {
	public String boardName;
	private javax.ejb.EntityContext entityContext = null;
	public String name;
	final static long serialVersionUID = 3206093459760846163L;
	public int threadID;
	private java.util.Vector posts;
	private PostHome postHome = null;

/**
 * This method was generated for supporting the associations.
 * @return java.util.Vector
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
protected java.util.Vector _getLinks() {
	java.util.Vector links = new java.util.Vector();
	return links;
}
/**
 * This method was generated for supporting the associations.
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
protected void _initLinks() {}
/**
 * This method was generated for supporting the associations.
 * @exception java.rmi.RemoteException The exception description.
 * @exception javax.ejb.RemoveException The exception description.
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
protected void _removeLinks() throws java.rmi.RemoteException, javax.ejb.RemoveException {
	java.util.Enumeration links = _getLinks().elements();
	while (links.hasMoreElements()) {
		try {
			((com.ibm.ivj.ejb.associations.interfaces.Link) (links.nextElement())).remove();
		}
		catch (javax.ejb.FinderException e) {} //Consume Finder error since I am going away
	}
}
/**
 * Insert the method's description here.
 * Creation date: (9/25/2001 2:06:15 PM)
 * @return int
 * @param author java.lang.String
 * @param date java.util.Date
 * @param subject java.lang.String
 * @param text java.lang.String
 */
public int addPost(String author, java.util.Date date, String subject, String text) throws RemoteException, CreateException {
	int nextID = 0;
	for (int i = 0; i < posts.size(); i++) {
		Post post = resolvePost(i);
		int postID = post.getPostID();
		nextID = Math.max(nextID, postID+1);
	}
	Post newPost = getPostHome().create(boardName, nextID, threadID);
	newPost.setAuthor(author);
	newPost.setDate(new java.sql.Date(date.getTime()));
	newPost.setSubject(subject);
	newPost.setText(text);
	posts.addElement(newPost);
	return nextID;
}
/**
 * ejbActivate method comment
 * @exception java.rmi.RemoteException The exception description.
 */
public void ejbActivate() throws java.rmi.RemoteException {
	_initLinks();
}
/**
 * ejbCreate method for a CMP entity bean
 * @param argBoardName java.lang.String
 * @param argThreadID int
 * @exception javax.ejb.CreateException The exception description.
 * @exception java.rmi.RemoteException The exception description.
 */
public void ejbCreate(java.lang.String argBoardName, int argThreadID) throws javax.ejb.CreateException, java.rmi.RemoteException {
	_initLinks();
	// All CMP fields should be initialized here.
	boardName = argBoardName;
	threadID = argThreadID;

	name = "";
	posts = new java.util.Vector();
}
/**
 * ejbLoad method comment
 * @exception java.rmi.RemoteException The exception description.
 */
public void ejbLoad() throws java.rmi.RemoteException {
	_initLinks();

	try {
		posts = new java.util.Vector();
		java.util.Enumeration e = getPostHome().findAllForThread(boardName, threadID);
		while (e.hasMoreElements()) {
			posts.addElement(e.nextElement());
		}
	}
	catch (FinderException e) {
	}
	catch (NullPointerException e) {
	}
}
/**
 * ejbPassivate method comment
 * @exception java.rmi.RemoteException The exception description.
 */
public void ejbPassivate() throws java.rmi.RemoteException {}
/**
 * ejbPostCreate method for a CMP entity bean
 * @param argBoardName java.lang.String
 * @param argThreadID int
 * @exception java.rmi.RemoteException The exception description.
 */
public void ejbPostCreate(java.lang.String argBoardName, int argThreadID) throws java.rmi.RemoteException {}
/**
 * ejbRemove method comment
 * @exception java.rmi.RemoteException The exception description.
 * @exception javax.ejb.RemoveException The exception description.
 */
public void ejbRemove() throws java.rmi.RemoteException, javax.ejb.RemoveException {
	_removeLinks();
	removeAllPosts();
}
/**
 * ejbStore method comment
 * @exception java.rmi.RemoteException The exception description.
 */
public void ejbStore() throws java.rmi.RemoteException {}
/**
 * Insert the method's description here.
 * Creation date: (9/25/2001 1:52:03 PM)
 * @return java.lang.String
 */
public String getBoardName() {
	return boardName;
}
/**
 * getEntityContext method comment
 * @return javax.ejb.EntityContext
 */
public javax.ejb.EntityContext getEntityContext() {
	return entityContext;
}
/**
 * Getter method for name
 * @return java.lang.String
 */
public java.lang.String getName() {
	return name;
}
/**
 * Insert the method's description here.
 * Creation date: (9/25/2001 4:56:27 PM)
 * @return com.bitterjava.bbs.ejb.Post
 * @param postID int
 * @exception java.rmi.RemoteException The exception description.
 */
public Post getPost(int postID) throws java.rmi.RemoteException {
	Post rcPost = null;
	for (int i = 0; i < posts.size(); i++) {
		Post thisPost = resolvePost(i);
		int thisID = thisPost.getPostID();
		if (thisID == postID) {
			rcPost = thisPost;
			break;
		}
	}
	return rcPost;
}
/**
 * Insert the method's description here.
 * Creation date: (9/25/2001 2:01:08 PM)
 * @return com.bitterjava.bbs.ejb.PostHome
 */
private PostHome getPostHome() {
	if (postHome == null) {
		try {
			Properties env = entityContext.getEnvironment();
			String providerURL = env.getProperty("providerURL");
			String postHomeName = env.getProperty("postHomeName");
			String ctxFactory = env.getProperty("ctxFactory");
			
			Properties p = new Properties();
		
			p.put("java.naming.provider.url", providerURL);
			p.put("java.naming.factory.initial", ctxFactory);
			javax.naming.InitialContext ic  = new javax.naming.InitialContext(p);

			java.lang.Object homeObject = ic.lookup(postHomeName);
			postHome = (PostHome)javax.rmi.PortableRemoteObject.narrow((org.omg.CORBA.Object)homeObject, PostHome.class);
		}
		catch (Exception e) {
		}

	}
	return postHome;
}
/**
 * Insert the method's description here.
 * Creation date: (9/25/2001 2:04:46 PM)
 * @return java.util.Collection
 */
public java.util.Collection getPosts() {
	return posts;
}
/**
 * Insert the method's description here.
 * Creation date: (9/25/2001 1:43:35 PM)
 * @return int
 */
public int getThreadID() {
	return threadID;
}
/**
 * Insert the method's description here.
 * Creation date: (9/26/2001 10:23:53 PM)
 * @exception java.rmi.RemoteException The exception description.
 * @exception javax.ejb.RemoveException The exception description.
 */
public void removeAllPosts() throws java.rmi.RemoteException, javax.ejb.RemoveException {
	for (int i = 0; i < posts.size(); i++) {
		Post thisPost = resolvePost(i);
		thisPost.remove();
	}
	posts = new java.util.Vector();
}
/**
 * Insert the method's description here.
 * Creation date: (9/25/2001 2:14:20 PM)
 * @param post com.bitterjava.bbs.ejb.Post
 */
public void removePost(Post post) throws RemoteException, RemoveException {
	for (int i = 0; i < posts.size(); i++) {
		Post thisPost = resolvePost(i);
		if (thisPost.isIdentical(post)) {
			posts.remove(i);
			thisPost.remove();
			break;
		}
	}
}
/**
 * Insert the method's description here.
 * Creation date: (9/27/2001 9:52:05 AM)
 * @return com.bitterjava.bbs.ejb.Post
 * @param postIndex int
 */
private Post resolvePost(int postIndex) {
	java.lang.Object o = posts.elementAt(postIndex);
	Post postEjb = (Post)javax.rmi.PortableRemoteObject.narrow((org.omg.CORBA.Object)o, Post.class);
	return postEjb;
}
/**
 * setEntityContext method comment
 * @param ctx javax.ejb.EntityContext
 * @exception java.rmi.RemoteException The exception description.
 */
public void setEntityContext(javax.ejb.EntityContext ctx) throws java.rmi.RemoteException {
	entityContext = ctx;
}
/**
 * Setter method for name
 * @param newValue java.lang.String
 */
public void setName(java.lang.String newValue) {
	this.name = newValue;
}
/**
 * unsetEntityContext method comment
 * @exception java.rmi.RemoteException The exception description.
 */
public void unsetEntityContext() throws java.rmi.RemoteException {
	entityContext = null;
}
}