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diff --git a/jpa/plugins/org.eclipse.jpt.doc.user/task_inheritance.htm b/jpa/plugins/org.eclipse.jpt.doc.user/task_inheritance.htm deleted file mode 100644 index 7979aaefeb..0000000000 --- a/jpa/plugins/org.eclipse.jpt.doc.user/task_inheritance.htm +++ /dev/null @@ -1,134 +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 = January 22, 2008 9:11:18 --> -<meta name="OAC_IGNORE_SKIP_NAV" content="true" /> -<title>Specifying entity inheritance</title> -<meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> -<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="Specifying entity inheritance" /> -<meta name="relnum" content="M5 - Release 2.0.0" /> -<meta name="partnum" content="" /> -<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" /> -<link rel="start" href="../../index.htm" title="Home" type="text/html" /> -<link rel="contents" href="toc.htm" title="Contents" type="text/html" /> -</head> -<body> -<p><a id="CIHCCCJD" name="CIHCCCJD"></a></p> -<div class="sect1"><!-- infolevel="all" infotype="General" --> -<h1>Specifying entity inheritance</h1> -<p><a id="sthref100" name="sthref100"></a><a id="sthref101" name="sthref101"></a>An entity may inherit properties from other entities. You can specify a specific strategy to use for inheritance.</p> -<p>Use this procedure to specify inheritance (<code>@Inheritance)</code> for an existing entity (<code>@Entity</code>):</p> -<ol start="1"> -<li> -<p>Select the entity in the <span class="gui-object-title">Package Explorer</span>.</p> -</li> -<li> -<p>In the <span class="gui-object-title">JPA Details</span> view, select the <span class="gui-object-action">Inheritance</span> information.</p> -<div class="figure"><a id="sthref102" name="sthref102"></a> -<p class="titleinfigure">Specifying Inheritance</p> -<img src="img/inheritance_tab.png" alt="Selecting the Inheritance area on the JPA Details view." title="Selecting the Inheritance area on the JPA Details view." /><br /></div> -<!-- class="figure" --></li> -<li> -<p>In the <span class="bold">Strategy</span> list, select one of the following the inheritance strategies:</p> -<ul> -<li> -<p>A single table (default)</p> -</li> -<li> -<p>Joined table</p> -</li> -<li> -<p>One table per class</p> -</li> -</ul> -</li> -<li> -<p>Use the following table to complete the remaining fields on the tab. See <a href="reference006.htm#CACFHGHE">"Inheritance information"</a> for additional details.</p> -<div class="inftblruleinformal"> -<table class="RuleInformal" title="This table describes the options on the Persistence Properties view, Inheritance tab." summary="This table describes the options on the Persistence Properties view, Inheritance tab." dir="ltr" border="1" width="100%" frame="border" rules="all" cellpadding="3" cellspacing="0"> -<thead> -<tr align="left" valign="top"> -<th align="left" valign="bottom" id="r1c1-t3">Property</th> -<th align="left" valign="bottom" id="r1c2-t3">Description</th> -<th align="left" valign="bottom" id="r1c3-t3">Default</th> -</tr> -</thead> -<tbody> -<tr align="left" valign="top"> -<td align="left" id="r2c1-t3" headers="r1c1-t3"><a id="sthref103" name="sthref103"></a><a id="sthref104" name="sthref104"></a>Discriminator Column</td> -<td align="left" headers="r2c1-t3 r1c2-t3">Name of the discriminator column when using a <span class="bold">Single</span> or <span class="bold">Joined</span> inheritance strategy. -<p>This field corresponds to the <code>@DiscriminatorColumn</code> annotation.</p> -</td> -<td align="left" headers="r2c1-t3 r1c3-t3"><br /></td> -</tr> -<tr align="left" valign="top"> -<td align="left" id="r3c1-t3" headers="r1c1-t3">Discriminator Type</td> -<td align="left" headers="r3c1-t3 r1c2-t3">Set the discriminator type to <code>Char</code> or <code>Integer</code> (instead of its default: <code>String</code>). The <span class="bold">Discriminator Value</span> must conform to this type.</td> -<td align="left" headers="r3c1-t3 r1c3-t3">String</td> -</tr> -<tr align="left" valign="top"> -<td align="left" id="r4c1-t3" headers="r1c1-t3"><a id="sthref105" name="sthref105"></a><a id="sthref106" name="sthref106"></a>Discriminator Value</td> -<td align="left" headers="r4c1-t3 r1c2-t3">Specify the discriminator value used to differentiate an entity in this inheritance hierarchy. The value must conform to the specified <span class="bold">Discriminator Type</span>. -<p>This field corresponds to the <code>@DiscriminatorValue</code> annotation.</p> -</td> -<td align="left" headers="r4c1-t3 r1c3-t3"><br /></td> -</tr> -<tr align="left" valign="top"> -<td align="left" id="r5c1-t3" headers="r1c1-t3">Override Default</td> -<td align="left" headers="r5c1-t3 r1c2-t3">Use this field to specify custom primary key join columns. -<p>This field corresponds to the <code>@PrimaryKeyJoinClumn</code> annotation.</p> -</td> -<td align="left" headers="r5c1-t3 r1c3-t3"><br /></td> -</tr> -</tbody> -</table> -<br /></div> -<!-- class="inftblruleinformal" --></li> -</ol> -<p>Eclipse adds the following annotations the entity field:</p> -<pre xml:space="preserve" class="oac_no_warn"> -@Inheritance(strategy=InheritanceType.<span class="italic"><INHERITANCE_STRATEGY></span>) -@DiscriminatorColumn(name="<span class="italic"><DISCRIMINATOR_COLUMN></span>", - discriminatorType=<span class="italic"><DISCRIMINATOR_TYPE></span>) -@DiscriminatorValue(value-"<span class="italic"><DISCRIMINATOR_VALUE></span>") -@PrimaryKeyJoinColumn(name="<span class="italic"><JOIN_COLUMN_NAME></span>", - referencedColumnName = "<span class="italic"><REFERENCED_COLUMN_NAME></span>") - -</pre> -<p><a id="sthref107" name="sthref107"></a><a id="sthref108" name="sthref108"></a><a id="sthref109" name="sthref109"></a>The following figures illustrates the different inheritance strategies.</p> -<div class="figure"><a id="sthref110" name="sthref110"></a> -<p class="titleinfigure">Single Table Inheritance</p> -<img src="img/inheritance_single.png" alt="This figure illustrates entity inheritance in a single table." title="This figure illustrates entity inheritance in a single table." /><br /></div> -<!-- class="figure" --> -<div class="figure"><a id="sthref111" name="sthref111"></a> -<p class="titleinfigure"><a id="sthref112" name="sthref112"></a><a id="sthref113" name="sthref113"></a>Joined Table Inheritance</p> -<img src="img/inheritance_join.png" alt="This figure illustrates a joined subclass inheritance strategy." title="This figure illustrates a joined subclass inheritance strategy." /><br /></div> -<!-- class="figure" --> -<br /> -<p> </p> -<img src="img/ngrelt.png" alt="Related task" title="Related task" /><br /> -<br /> -<a href="task_add_persistence.htm#BABHICAI">Adding persistence to a class</a> -<p> </p> -<img src="img/ngrelc.png" alt="Related concept" title="Related concept" /><br /> -<br /> -<a href="concept_persistence.htm#BABCAHIC">Understanding Java persistence</a><br /></div> -<!-- class="sect1" --> -<!-- 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. 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