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author | nhauge | 2008-11-20 02:13:40 +0000 |
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committer | nhauge | 2008-11-20 02:13:40 +0000 |
commit | 127ebada0dc741bf656713bdf1306739a32095be (patch) | |
tree | 3904a930ab15db589ac191fc0786321d0231d871 /jpa/plugins/org.eclipse.jpt.doc.user/tasks006.htm | |
parent | c388ffbaf129e5cda3183c2170829b6283fb665f (diff) | |
download | webtools.dali-200811190000.tar.gz webtools.dali-200811190000.tar.xz webtools.dali-200811190000.zip |
This commit was manufactured by cvs2svn to create tag 'v200811190000'.v200811190000
Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.doc.user/tasks006.htm')
-rw-r--r-- | jpa/plugins/org.eclipse.jpt.doc.user/tasks006.htm | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.doc.user/tasks006.htm b/jpa/plugins/org.eclipse.jpt.doc.user/tasks006.htm deleted file mode 100644 index 7aef6952a7..0000000000 --- a/jpa/plugins/org.eclipse.jpt.doc.user/tasks006.htm +++ /dev/null @@ -1,95 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" - "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> -<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> -<head> -<!-- Run date = July 23, 2008 8:59:44 --> -<meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> -<title>Entity</title> - -<meta http-equiv="Content-Style-Type" content="text/css" /> -<meta http-equiv="Content-Script-Type" content="text/javascript" /> -<meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.0" /> -<meta name="date" content="2005-07-10T12:57:20+08:00" /> -<meta name="robots" content="noarchive" /> -<meta name="doctitle" content="Entity" /> -<meta name="relnum" content="Release 2.0" /> -<meta name="copyright" content="Copyright (c) 2000, 2008 oracle . All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at http://www.eclipse.org/legal/epl-v10.html. Contributors: Oracle - initial API and implementation" /> -<link rel="copyright" href="dcommon/html/cpyr.htm" title="Copyright" type="text/html" /> -<link rel="stylesheet" href="dcommon/css/blafdoc.css" title="Oracle BLAFDoc" type="text/css" /> -<!-- start--> -<!-- contents --> -</head> -<body> -<p><a id="BABGBIEE" name="BABGBIEE"></a></p> -<div class="sect2"><!-- infolevel="all" infotype="General" --> -<h1>Entity</h1> -<p><a id="sthref57" name="sthref57"></a><a id="sthref58" name="sthref58"></a><a id="sthref59" name="sthref59"></a><a id="sthref60" name="sthref60"></a>An <span class="bold">Entity</span> is a persistent domain object.</p> -<p>An entity <span class="italic">can be</span>:</p> -<ul> -<li> -<p>Abstract or concrete classes. Entities may also extend non-entity classes as well as entity classes, and non-entity classes may extend entity classes.</p> -</li> -</ul> -<p>An entity <span class="italic">must have</span>:</p> -<ul> -<li> -<p>A no-arg constructor (public or protected); the entity class may have other constructors as well.</p> -</li> -</ul> -<p><a id="sthref61" name="sthref61"></a><a id="sthref62" name="sthref62"></a><a id="sthref63" name="sthref63"></a>Each persistent entity must be mapped to a database table and contain a primary key. Persistent entities are identified by the <code>@Entity</code> annotation.</p> -<p>Use this procedure to add persistence to an existing entity:</p> -<ol start="1"> -<li> -<p>Open the Java class in the <span class="gui-object-title">Package Explorer.</span></p> -</li> -<li> -<p>Select the class in the JPA Structure view.</p> -</li> -<li> -<p>In the JPA Details view, click the mapping type hyperlink to access the Mapping Type Selection dialog. In the following figure, clicking <span class="italic">entity</span> invokes the dialog from the JPA Details View.</p> -<div class="figure"><a id="sthref64" name="sthref64"></a> -<p class="titleinfigure">The Mapping Type Hyperlink</p> -<img src="img/mapped_entity_type_link.png" alt="The JPA Details view for an entity showing the mapping type hyperlink." title="The JPA Details view for an entity showing the mapping type hyperlink." /><br /></div> -<!-- class="figure" --> -<div align="center"> -<div class="inftblnotealso"><br /> -<table class="NoteAlso oac_no_warn" summary="" cellpadding="3" cellspacing="0"> -<tbody> -<tr> -<td align="left"> -<p class="notep1">Tip:</p> -You can also change (or add) persistence for an entity by right-clicking the class in the JPA Structure View and then clicking <span class="bold">Map As > Entity</span>.</td> -</tr> -</tbody> -</table> -<br /></div> -<!-- class="inftblnotealso" --></div> -</li> -<li> -<p>Select <span class="bold">Entity</span> from the Mapping Type Selection dialog and then click <span class="bold">OK</span>.</p> -<div class="figure"><a id="sthref65" name="sthref65"></a> -<p class="titleinfigure">The Mapping Type Selection Dialog</p> -<img src="img/mapping_type_selection_entity.png" alt="The Mapping Type selection dialog with Enity selected." title="The Mapping Type selection dialog with Enity selected." /><br /></div> -<!-- class="figure" --></li> -<li> -<p>Complete the remaining <a href="ref_persistence_prop_view.htm#BABFAEBB">JPA Details view (for entities)</a>.</p> -</li> -</ol> -<p> </p> -<img src="img/ngrelt.png" alt="Related tasks" title="Related tasks" /><br /> -<br /> -<a href="task_add_persistence.htm#BABHICAI">Adding persistence to a class</a><br /> -<a href="task_additonal_tables.htm#CIHGBIEI">Specifying additional tables</a><br /> -<a href="task_inheritance.htm#CIHCCCJD">Specifying entity inheritance</a><br /></div> -<!-- class="sect2" --> -<!-- Start Footer --> -<div class="footer"> -<table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> -<tr> -<td align="left" width="86%"><a href="dcommon/html/cpyr.htm"><span class="copyrightlogo">Copyright © 2006, 2008, Oracle. All rights reserved.</span></a></td> -</tr> -</table> -</div> -<!-- class="footer" --> -</body> -</html> |