dragon.onlinedb.amazon
Class AmazonReviewQuery

java.lang.Object
  |
  +--dragon.onlinedb.AbstractQuery
        |
        +--dragon.onlinedb.amazon.AmazonReviewQuery

All Implemented Interfaces:

ArticleQuery, CollectionReader

public class AmazonReviewQuery

extends AbstractQuery

Amazon reveiw query

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Field Summary

protected Article[]	arrArticle
protected HttpUtil	http
protected java.lang.String	queryKey
protected java.lang.String	reviewUrl
protected java.lang.String	term
protected java.lang.String	webEnv

Fields inherited from class dragon.onlinedb.AbstractQuery

articleNum, curArticle, curArticleNo, curPageNo, curPageWidth, pageNum, pageWidth, parser

Constructor Summary

AmazonReviewQuery()

AmazonReviewQuery(java.lang.String productCode)

Method Summary

protected Article	getArticle(int articleNo)
Article	getArticleByKey(java.lang.String PMID) Reads out the article according to its key
boolean	initQuery() One should call this method before retrieval articles.
static void	main(java.lang.String[] args)
boolean	moveToPage(int pageNo) Move to the given page and the pointer is set on the first article of the page.
void	setSearchTerm(java.lang.String productCode) Set the searching terms.
boolean	supportArticleKeyRetrieval() if the query supports this retrieval mode, one can get articles by calling getArticleByKey method.

Methods inherited from class dragon.onlinedb.AbstractQuery

close, getArticle, getArticleKey, getArticleParser, getCurPageNo, getCurPageWidth, getNextArticle, getPageNum, getPageWidth, getTotalArticleNum, loadCollection, moveToArticle, moveToNextArticle, moveToNextPage, restart, setArticleParser

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

webEnv

protected java.lang.String webEnv

queryKey

protected java.lang.String queryKey

term

protected java.lang.String term

reviewUrl

protected java.lang.String reviewUrl

arrArticle

protected Article[] arrArticle

http

protected HttpUtil http

Constructor Detail

AmazonReviewQuery

public AmazonReviewQuery(java.lang.String productCode)

AmazonReviewQuery

public AmazonReviewQuery()

Method Detail

main

public static void main(java.lang.String[] args)

supportArticleKeyRetrieval

public boolean supportArticleKeyRetrieval()

Description copied from interface: CollectionReader

if the query supports this retrieval mode, one can get articles by calling getArticleByKey method.

Returns:

true if the query support the article retrieval by key.

setSearchTerm

public void setSearchTerm(java.lang.String productCode)

Description copied from interface: ArticleQuery

Set the searching terms. How to interpret the terms specified in the string is subject to the implementations.

initQuery

public boolean initQuery()

Description copied from interface: ArticleQuery

One should call this method before retrieval articles. After initialization, number of pages and number of papers are available.

Returns:

a boolean value to indicate the operation is successful or failed.

moveToPage

public boolean moveToPage(int pageNo)

Description copied from interface: ArticleQuery

Move to the given page and the pointer is set on the first article of the page.

Parameters:

pageNo - the page #

Returns:

true if the given page exists.

getArticleByKey

public Article getArticleByKey(java.lang.String PMID)

Description copied from interface: CollectionReader

Reads out the article according to its key

Parameters:

PMID - the unique entry number of the article

Returns:

an article if exists

getArticle

protected Article getArticle(int articleNo)

Specified by:

getArticle in class AbstractQuery