File	Doc	Category	Size	Date	Package
DataAdapter.java	API Doc	Example	2689	Sun Sep 02 14:59:06 BST 2001	com.oreilly.forum.adapter

DataAdapter

• java.lang.Object

Fields Summary
private static DataAdapter	instance

Constructors Summary

Methods Summary
public abstract java.util.Iterator	getAllBoards() return an iterator of all BoardSummary objects.
public abstract java.util.Iterator	getAllMessages(long boardID, MonthYear month) If no messages exist for the specified board and month, return an empty iterator. return an iterator of MessageSummary objects. throws DataException if the boardID is illegal or a database error occurs.
public abstract BoardSummary	getBoardSummary(long boardID) return a board summary for the given id. throws DataException if boardID is illegal or a database error occurs.
public static synchronized com.oreilly.forum.adapter.DataAdapter	getInstance() return the singleton instance of this class. if (instance == null) { String adapterClassName = ForumConfig.getAdapterClassName(); try { Class adapterClass = Class.forName(adapterClassName); instance = (DataAdapter) adapterClass.newInstance(); } catch (Exception ex) { throw new DataException("Unable to instantiate " + adapterClassName); } } return instance;
public abstract Message	getMessage(long msgID) param msgID must be a valid message identifier. return the message with the specified id. throws DataException if msgID does not exist or a database error occurs.
public abstract Message	postNewMessage(long boardID, java.lang.String msgSubject, java.lang.String authorEmail, java.lang.String msgText) Post a new message. return the newly created message. throws DataException if a database error occurs, or if any parameter is illegal.
public abstract Message	replyToMessage(long origMsgID, java.lang.String msgSubject, java.lang.String authorEmail, java.lang.String msgText) Add a reply to an existing message. throws DataException if a database error occurs, or if any parameter is illegal.