470 lines
15 KiB
HTML
470 lines
15 KiB
HTML
<html>
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<head>
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<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<meta content="text/html; charset=ISO-8859-1">
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<title></title>
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<style type="text/css">
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body { background-color: white; font-size: normal; color: black ; }
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a { color: #525d76; }
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a.black { color: #000000;}
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table {border-width: 0; width: 100%}
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table.centered {text-align: center}
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table.title {text-align: center; width: 80%}
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img{border-width: 0;}
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span.s1 {font-family: Helvetica, Arial, sans-serif; font-weight: bold; color: #000000; }
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span.s1_white { font-family: Helvetica, Arial, sans-serif; font-weight: bold; color: #ffffff; }
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span.title {font-family: Helvetica, Arial, sans-serif; font-weight: bold; color: #000000; }
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span.c1 {color: #000000; font-family: Helvetica, Arial, sans-serif}
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tr.left {text-align: left}
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hr { width: 100%; size: 2}
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</style>
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</head>
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<body>
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<table width="100%" cellspacing="0" cellpadding="0" border="0">
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<tr>
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<td valign="top" align="left"><a href="http://jakarta.apache.org/index.html"><img hspace="0" vspace="0" border="0" src="images/jakarta-logo.gif"></a></td><td width="100%" valign="top" align="left" bgcolor="#ffffff"><img hspace="0" vspace="0" border="0" align="right" src="images/header.gif"></td>
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<tr>
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<td colspan="2" bgcolor="#525d76"><span class="c1"><a class="black" href="http://www.apache.org/">www.apache.org ></a><a class="black" href="http://jakarta.apache.org/">jakarta.apache.org ></a><a href="http://jakarta.apache.org/poi/" class="black">jakarta.apache.org/poi</a></span></td>
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</tr>
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<tr>
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<td height="8"></td>
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</tr>
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</table>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<tr>
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<td width="1%">
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<br>
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</td><td nowrap="1" valign="top" width="14%">
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<br>
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<span class="s1">About</span>
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<br>
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<a class="s1" href="index.html">Index</a>
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<br>
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<a class="s1" href="historyandfuture.html">History</a>
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<br>
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<a class="s1" href="historyandfuture.html">Future</a>
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<br>
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<a class="s1" href="http://sourceforge.net/project/showfiles.php?group_id=32701">Download</a>
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<br>
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<a class="s1" href="plan/POI10Vision.html">1.0 Vision</a>
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<br>
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<a class="s1" href="plan/POI20Vision.html">2.0 Vision</a>
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<br>
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<a class="s1" href="who.html">Who we are</a>
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<br>
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<a class="s1" href="changes.html">Changes</a>
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<br>
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<br>
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<span class="s1">Sub-Projects</span>
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<br>
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<a class="s1" href="overview.html">Overview</a>
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<br>
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<a class="s1" href="poifs/index.html">POIFS</a>
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<br>
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<a class="s1" href="hssf/index.html">HSSF</a>
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<br>
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<a class="s1" href="hdf/index.html">HDF</a>
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<br>
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<a class="s1" href="hpsf/index.html">HPSF</a>
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<br>
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<a class="s1" href="utils/index.html">POI-Utils</a>
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<br>
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<br>
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<span class="s1">References</span>
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<br>
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<a class="s1" href="inthenews.html">In The News</a>
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<br>
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<a class="s1" href="livesites.html">Live Sites</a>
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<br>
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<a class="s1" href="http://sc.openoffice.org/excelfileformat.pdf">XLS spec [PDF]</a>
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<br>
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<a class="s1" href="http://xml.apache.org/cocoon/">Apache Cocoon</a>
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<br>
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<a class="s1" href="resolutions/index.html">Resolutions</a>
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<br>
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<br>
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<span class="s1">Get Involved</span>
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<br>
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<a class="s1" href="contrib.html">Contributing</a>
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<br>
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<a class="s1" href="http://nagoya.apache.org/bugzilla/buglist.cgi?product=POI">Bug Database</a>
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<br>
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<a class="s1" href="http://jakarta.apache.org/site/cvsindex.html">CVS</a>
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<br>
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<a class="s1" href="http://jakarta.apache.org/site/mail.html">Mail Lists</a>
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<br>
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</td><td width="1%">
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<br>
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</td><td align="left" valign="top" width="*"><font size="-2" color="#000000">
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<p>
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<a href="mailto:"></a>
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</p>
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</font>
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<div align="right">
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<table cellspacing="0" cellpadding="2" border="0" width="100%">
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<tr>
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<td bgcolor="#525D76"><font color="#ffffff" size="+1"><font face="Arial,sans-serif"><b>Logo Contest</b></font></font></td>
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</tr>
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<tr>
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<td>
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<br>
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<p align="justify">
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The POI committers have voted to
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<a href="http://jakarta.apache.org/ant">"innovate"</a> and hold a
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logo contest. The big P at the top of the page is just a placeholder.
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So the rules are pretty much this:
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</p>
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<ul>
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<li>
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<a href="http://burnallgifs.org/">Only PNG submissions</a>
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be accepted (we can convert them as needed).
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</li>
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<li>
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Submissions must be sent to the <a href="http://jakarta.apache.org/site/mail.html">POI
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User's mailing list</a> via an http link. If you do not
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have an available webserver contact Andy (acoliver at apache dot
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org) and ask him to post it for you (and he will if it doesn't
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suck royally). Large binary attachments annoyingly posted to
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the list will be rebuked. :-)
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</li>
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<li>
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Image authors must be willing to work with us on any font and
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sizing issues, etc.
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</li>
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<li>
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All submissions become property of the Apache Software
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Foundation to do whatever it wants with them (thanks!).
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</li>
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<li>
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A non-binding poll will be taken and everyone can vote.
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</li>
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<li>
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Based on the poll results and the fact that Andy won't vote for
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anything that isn't some kind of tiki god or hawaiian theme
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(maybe a poi pounder would be acceptable), the committers will
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vote on the new POI logo.
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</li>
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<li>
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Logos should be submitted in two flavors: one for the top of the
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page and another for posting on other sites that note projects
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that use POI technology.
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</li>
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<li>
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The winner will get credit posted somewhere on the POI site and
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have their logo used wherever POI is proudly served.
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</li>
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</ul>
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<p align="justify">
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You can see the current submissions <a href="news/logocontest.html">here.</a>
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</p>
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</td>
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</tr>
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</table>
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</div>
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<br>
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<div align="right">
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<table cellspacing="0" cellpadding="2" border="0" width="100%">
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<tr>
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<td bgcolor="#525D76"><font color="#ffffff" size="+1"><font face="Arial,sans-serif"><b>Purpose</b></font></font></td>
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</tr>
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<tr>
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<td>
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<br>
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<p align="justify">
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The POI project consists of APIs for manipulating various file formats
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based upon Microsoft's OLE 2 Compound Document format using pure Java.
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</p>
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<p align="justify">
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OLE 2 Compound Document Format based files include most Microsoft Office
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files such as XLS and DOC.
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</p>
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<p align="justify">
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As a general policy we try to collaborate as much as possible with other projects to
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provide this functionality. Examples include: <a href="http://xml.apache.org/cocoon">Cocoon</a> for
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which you'll soon find generators and serializers for our projects;
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<a href="http://www.openoffice.org">Open Office.org</a> with whom we collaborate in documenting the
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XLS format; and <a href="http://jakarta.apache.org/lucene">Lucene</a> for which we'll soon have file
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format interpretors. When practical, we donate components directly to those projects for POI-enabling them.
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</p>
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<div align="right">
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<table cellspacing="0" cellpadding="2" border="0" width="99%">
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<tr>
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<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>Why/when would I use POI?</b></font></font></td>
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</tr>
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<tr>
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<td>
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<br>
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<p align="justify">
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We'll tackle this on a component level. POI refers to the whole project.
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</p>
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<p align="justify">
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So why should you use POIFS or HSSF?
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</p>
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<p align="justify">
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You'd use POIFS if you had a document written in OLE 2 Compound Document Format, probably written using
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MFC, that you needed to read in Java. Alternatively, you'd use POI to write OLE 2 Compound Document Format
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if you needed to inter-operate with software running on the Windows platform. We are not just bragging when
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we say that POIFS is the most complete and correct port of this file format to date!
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</p>
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<p align="justify">
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You'd use HSSF if you needed to read or write an XLS (Excel) file using Java. You can also read and modify
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spreadsheets using this API, although right now writing is more mature.
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</p>
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</td>
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</tr>
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</table>
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</div>
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<br>
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<div align="right">
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<table cellspacing="0" cellpadding="2" border="0" width="99%">
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<tr>
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<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>What does POI stand for?</b></font></font></td>
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</tr>
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<tr>
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<td>
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<br>
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<p align="justify">
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POI stands for Poor Obfuscation Implementation. Why would we name our project such a derogatory name? Well,
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Microsoft's OLE 2 Compound Document Format is a poorly conceived thing. It is essentially an archive structured
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much like the old DOS FAT filesystem. Redmond chose, instead of using tar, gzip, zip or arc, to invent their own
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archive format that does not provide any standard encryption or compression, is not very appendable and is prone
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to fragmentation.
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</p>
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<p align="justify">
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Poi is also a Hawaiian delicacy that <a href="http://www.m-w.com">Merriam Webster's dictionary</a> defines as:
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"A Hawaiian food of taro root cooked, pounded, and kneaded to a paste and often allowed to ferment." This seemed
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strangely descriptive of the file format.
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</p>
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<p align="justify">
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So if you like acronyms, then POI is an acronym. If you hate them, then we just used the name of the food for our
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project. If you wish to signify your love or hate for acronyms, use POI or Poi to refer to the project respectively.
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</p>
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</td>
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</tr>
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</table>
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</div>
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<br>
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</td>
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</tr>
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</table>
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</div>
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<br>
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<div align="right">
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<table cellspacing="0" cellpadding="2" border="0" width="100%">
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<tr>
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<td bgcolor="#525D76"><font color="#ffffff" size="+1"><font face="Arial,sans-serif"><b>Components To Date</b></font></font></td>
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</tr>
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<tr>
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<td>
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<br>
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<div align="right">
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<table cellspacing="0" cellpadding="2" border="0" width="99%">
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<tr>
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<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>Overview</b></font></font></td>
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</tr>
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<tr>
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<td>
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<br>
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<p align="justify">A common misconception is that POI writes Excel files. POI is the name of the project. POI contains several
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components, one of which, HSSF, writes Excel files. The following are components of the entire POI project
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and a brief summary of their purpose.</p>
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</td>
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</tr>
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</table>
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</div>
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<br>
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<div align="right">
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<table cellspacing="0" cellpadding="2" border="0" width="99%">
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<tr>
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<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>POIFS (POI Filesystem)</b></font></font></td>
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</tr>
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<tr>
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<td>
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<br>
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<p align="justify">POIFS is the oldest and most stable part of the project. It is our port of the OLE 2 Compound Document Format to
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pure Java. It supports both read and write functionality. All of our components ultimately rely on it by
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definition. Please see <a href="poifs/index.html">the POIFS project page</a> for more information.</p>
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</td>
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</tr>
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</table>
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</div>
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<br>
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<div align="right">
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<table cellspacing="0" cellpadding="2" border="0" width="99%">
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<tr>
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<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>HSSF (Horrible Spreadsheet Format)</b></font></font></td>
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</tr>
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<tr>
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<td>
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<br>
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<p align="justify">HSSF is our port of the Microsoft Excel 97(-2002) file format (BIFF8) to pure Java. It supports read and write
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capability. Please see <a href="hssf/index.html">the HSSF project page</a> for more information.</p>
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</td>
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</tr>
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</table>
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</div>
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<br>
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<div align="right">
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<table cellspacing="0" cellpadding="2" border="0" width="99%">
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<tr>
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<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>HDF (Horrible Document Format)</b></font></font></td>
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</tr>
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<tr>
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<td>
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<br>
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<p align="justify">HDF is our port of the Microsoft Word 97 file format to pure Java. It supports read and write capability.
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Please see <a href="hdf/index.html">the HDF project page for more information</a>. This component is
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in the early stages of design. Jump in!</p>
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</td>
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</tr>
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</table>
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</div>
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<br>
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<div align="right">
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<table cellspacing="0" cellpadding="2" border="0" width="99%">
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<tr>
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<td bgcolor="#525D76"><font color="#ffffff" size="+0"><font face="Arial,sans-serif"><b>HPSF (Horrible Property Set Format)</b></font></font></td>
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</tr>
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<tr>
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<td>
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<br>
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<p align="justify">HPSF is our port of the OLE 2 property set format to pure
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Java. Property sets are mostly use to store a document's properties
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(title, author, date of last modification etc.), but they can be used
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for application-specific purposes as well. Currently HPSF supports
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read functionality only. Please see <a href="hpsf/index.html">the HPSF project page</a> for more
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information.</p>
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</td>
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</tr>
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</table>
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</div>
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<br>
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</td>
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</tr>
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</table>
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</div>
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<br>
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<div align="right">
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<table cellspacing="0" cellpadding="2" border="0" width="100%">
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<tr>
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<td bgcolor="#525D76"><font color="#ffffff" size="+1"><font face="Arial,sans-serif"><b>What happened to the HSSF Serializer?</b></font></font></td>
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</tr>
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<tr>
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<td>
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<br>
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<p align="justify">The HSSF Serializer, which was part of our 1.0 release and last builds on
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<a href="http://www.sourceforge.net/projects/poi">Sourceforge</a>, has been donated to the Cocoon project. We're
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currently in the process of porting it over.</p>
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</td>
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</tr>
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</table>
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</div>
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<br>
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<div align="right">
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<table cellspacing="0" cellpadding="2" border="0" width="100%">
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<tr>
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<td bgcolor="#525D76"><font color="#ffffff" size="+1"><font face="Arial,sans-serif"><b>Contributing </b></font></font></td>
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</tr>
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<tr>
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<td>
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<br>
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<p align="justify">
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So you'd like to contribute to the project? Great! We need enthusiastic, hard-working, talented folks to help
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us on the project in several areas. The first is bug reports and feature requests! The second is documentation -
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we'll be at your every beck and call if you've got a critique or you'd like to contribute or otherwise improve
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the documentation. We could especially use some help documenting the HSSF file format! Last, but not least, we
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could use some binary crunching Java coders to chew through the convolution that characterizes Microsoft's file
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formats and help us port new ones to a superior Java platform!
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</p>
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<p align="justify">So if you're motivated, ready, and have the time, join the mail lists and we'll be happy to help you get started on the
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project!
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</p>
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</td>
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</tr>
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</table>
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</div>
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<br>
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</td>
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</tr>
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</table>
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<br>
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<table width="100%" border="0" cellspacing="0" cellpadding="0">
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<tbody>
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<tr>
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<td>
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<hr noshade="" size="1">
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</td>
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</tr>
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<tr>
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<td align="center"><i>Copyright © 2002 Apache Software Foundation</i></td>
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</tr>
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<tr>
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<td align="right" width="100%">
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<br>
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</td>
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</tr>
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<tr>
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<td align="right" width="100%"><a href="http://krysalis.org/"><img alt="Krysalis Logo" src="images/krysalis-compatible.jpg"></a><a href="http://xml.apache.org/cocoon/"><img alt="Cocoon Logo" src="images/built-with-cocoon.gif"></a></td>
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</tr>
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</tbody>
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</table>
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</body>
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</html>
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