diff options
author | nhauge | 2007-05-04 19:55:48 +0000 |
---|---|---|
committer | nhauge | 2007-05-04 19:55:48 +0000 |
commit | bc72d754f082fe30ef0d7aeff54f29c64553f02a (patch) | |
tree | d69c3c3f38ea93ee78ce6d4529f80d928ee88030 /jpa/plugins/org.eclipse.jpt.doc.user/tasks007.htm | |
parent | d8139fbb848c9509ae592b5477c85f5fd34b8ceb (diff) | |
download | webtools.dali-bc72d754f082fe30ef0d7aeff54f29c64553f02a.tar.gz webtools.dali-bc72d754f082fe30ef0d7aeff54f29c64553f02a.tar.xz webtools.dali-bc72d754f082fe30ef0d7aeff54f29c64553f02a.zip |
178911 - Initial check-in for user.doc plugin for Dali 1.0.
Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.doc.user/tasks007.htm')
-rw-r--r-- | jpa/plugins/org.eclipse.jpt.doc.user/tasks007.htm | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.doc.user/tasks007.htm b/jpa/plugins/org.eclipse.jpt.doc.user/tasks007.htm new file mode 100644 index 0000000000..2dbfc37566 --- /dev/null +++ b/jpa/plugins/org.eclipse.jpt.doc.user/tasks007.htm @@ -0,0 +1,206 @@ +<!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 = May 3, 2007 9:19:10 --> +<meta name="OAC_IGNORE_SKIP_NAV" content="true" /> +<title>Basic mapping</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 - Version 4.5.3 Build 02" /> +<meta name="date" content="2005-07-10T12:57:20+08:00" /> +<meta name="robots" content="all" scheme="http://www.robotstxt.org/" /> +<meta name="doctitle" content="Basic mapping" /> +<meta name="relnum" content="Release 1.0.0" /> +<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="BABBABCE" name="BABBABCE"></a></p> +<div class="sect2"><!-- infolevel="all" infotype="General" --> +<table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> +<tr valign="bottom"> +<td align="left" width="86%"> +<h1>Basic mapping</h1> +</td> +</tr> +</table> +<p><a id="sthref110" name="sthref110"></a><a id="sthref111" name="sthref111"></a><a id="sthref112" name="sthref112"></a><a id="sthref113" name="sthref113"></a>Use a <span class="bold">Basic Mapping</span> to map an attribute directly to a database column. Basic mappings may be used only with the following attribute types:</p> +<ul> +<li type="disc"> +<p>Java primitive types and wrappers of the primitive types</p> +</li> +<li type="disc"> +<p><code>java.lang.String, java.math.BigInteger</code></p> +</li> +<li type="disc"> +<p><code>java.math.BigDecimal</code></p> +</li> +<li type="disc"> +<p><code>java.util.Date</code></p> +</li> +<li type="disc"> +<p><code>java.util.Calendar, java.sql.Date</code></p> +</li> +<li type="disc"> +<p><code>java.sql.Time</code></p> +</li> +<li type="disc"> +<p><code>java.sql.Timestamp</code></p> +</li> +<li type="disc"> +<p><code>byte[]</code></p> +</li> +<li type="disc"> +<p><code>Byte[]</code></p> +</li> +<li type="disc"> +<p><code>char[]</code></p> +</li> +<li type="disc"> +<p><code>Character[]</code></p> +</li> +<li type="disc"> +<p>enums</p> +</li> +<li type="disc"> +<p>any other type that implements <code>Serializable</code></p> +</li> +</ul> +<p>To create a basic mapping:</p> +<ol type="1" start="1"> +<li> +<p>In the <a href="ref_persistence_outline.htm#BABEGGFE">JPA Structure view</a>, select the field to map. The <a href="ref_persistence_map_view.htm#BABIFBAF">JPA Details view (for attributes)</a> displays the properties for the selected field.</p> +</li> +<li> +<p>In the <span class="gui-object-title">Map As</span> field, select <span class="gui-object-action">Basic</span>.</p> +</li> +<li> +<p>Use this table to complete the remaining fields on the <span class="gui-object-title">JPA Details</span> view.</p> +<div class="inftblruleinformal"> +<table class="RuleInformal" title="This table lists the fields in the Persistence Properties view for this mapping." summary="This table lists the fields in the Persistence Properties view for this mapping." 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">Map As</td> +<td align="left" headers="r2c1-t3 r1c2-t3">Defines this mapping as a <span class="bold">Basic Mapping</span>. +<p>This field corresponds to the <code>@Basic</code> annotation.</p> +</td> +<td align="left" headers="r2c1-t3 r1c3-t3">Basic</td> +</tr> +<tr align="left" valign="top"> +<td align="left" id="r3c1-t3" headers="r1c1-t3">Column</td> +<td align="left" headers="r3c1-t3 r1c2-t3">The database column mapped to the entity attribute. See <a href="ref_mapping_general.htm#CACGCBHB">"Column"</a> for details. +<ul> +<li type="disc"> +<p>Name – Name of the database column.</p> +</li> +<li type="disc"> +<p>Table – Name of the database table.</p> +</li> +<li type="disc"> +<p>Insertable – Specify if the column is always included in <code>SQL INSERT</code> statements.</p> +</li> +<li type="disc"> +<p>Updatable – Specify if the column is always included in <code>SQL UPDATE</code> statements.</p> +</li> +</ul> +</td> +<td align="left" headers="r3c1-t3 r1c3-t3">By default, the Column is assumed to be named identically to the attribute and always included in the <code>INSERT</code> and <code>UPDATE</code> statements.</td> +</tr> +<tr align="left" valign="top"> +<td align="left" id="r4c1-t3" headers="r1c1-t3">Table</td> +<td align="left" headers="r4c1-t3 r1c2-t3">Name of the database table.</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">Fetch</td> +<td align="left" headers="r5c1-t3 r1c2-t3">Defines how data is loaded from the database. See <a href="ref_mapping_general.htm#CACGGGHB">"Fetch Type"</a> for details. +<ul> +<li type="disc"> +<p>Eager</p> +</li> +<li type="disc"> +<p>Lazy</p> +</li> +</ul> +</td> +<td align="left" headers="r5c1-t3 r1c3-t3">Eager</td> +</tr> +<tr align="left" valign="top"> +<td align="left" id="r6c1-t3" headers="r1c1-t3">Optional</td> +<td align="left" headers="r6c1-t3 r1c2-t3">Specifies if this field is can be null.</td> +<td align="left" headers="r6c1-t3 r1c3-t3">Yes</td> +</tr> +<tr align="left" valign="top"> +<td align="left" id="r7c1-t3" headers="r1c1-t3">Lob</td> +<td align="left" headers="r7c1-t3 r1c2-t3">Specifies if this is a large objects (BLOB or CLOB). See <a href="ref_mapping_general.htm#CACBBIBI">"Lob"</a> for details.</td> +<td align="left" headers="r7c1-t3 r1c3-t3"><br /></td> +</tr> +<tr align="left" valign="top"> +<td align="left" id="r8c1-t3" headers="r1c1-t3">Temporal</td> +<td align="left" headers="r8c1-t3 r1c2-t3">Specifies the type of data. See <a href="ref_mapping_general.htm#CACEAJGD">"Temporal"</a> for details. +<ul> +<li type="disc"> +<p>Date</p> +</li> +<li type="disc"> +<p>Time</p> +</li> +<li type="disc"> +<p>Timestamp</p> +</li> +</ul> +</td> +<td align="left" headers="r8c1-t3 r1c3-t3"><br /></td> +</tr> +</tbody> +</table> +<br /></div> +<!-- class="inftblruleinformal" --></li> +</ol> +<p>Eclipse adds the following annotations to the field:</p> +<pre xml:space="preserve" class="oac_no_warn"> +@Column(name="<span class="italic"><COLUMN_NAME></span>", table="<span class="italic"><COLUMN_TABLE></span>", + insertable=<span class="italic"><INSERTABLE></span>, updatable=<span class="italic"><UPDATABLE></span>) +@Basic(fetch=FetchType.<span class="italic"><FETCH_TYPE></span>, optional = <span class="italic"><OPTIONAL></span>) +@Temporal(TemporalType.<span class="italic"><TEMPORAL></span>) + + +</pre> +<p> </p> +<img src="img/ngrelt.png" alt="Related task" title="Related task" /><br /> +<br /> +<a href="task_mapping.htm#BABDGBIJ">Mapping an entity</a> +<p> </p> +<img src="img/ngrelr.png" alt="Related reference" title="Related reference" /><br /> +<br /> +<a href="ref_persistence_outline.htm#BABEGGFE">JPA Structure view</a><br /> +<a href="ref_persistence_map_view.htm#BABIFBAF">JPA Details view (for attributes)</a> +<p> </p> +<img src="img/ngrelc.png" alt="Related concept" title="Related concept" /><br /> +<br /> +<a href="concept_mapping.htm#BABBDJFI">Understanding OR mappings</a><br /> +<a href="concepts001.htm#BABBGFJG">Understanding EJB 3.0 Java Persistence API</a></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, 2007, Oracle. All rights reserved.</span></a></td> +</tr> +</table> +</div> +<!-- class="footer" --> +</body> +</html> |