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-<!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">
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-<meta http-equiv="Content-Type" content="text/html; charset=us-ascii" />
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-<meta http-equiv="Content-Script-Type" content="text/javascript" />
-<title>General information</title>
-<meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.1.1 Build 004" />
-<meta name="date" content="2009-05-01T8:12:51Z" />
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-<meta name="doctitle" content="General information" />
-<meta name="relnum" content="Release 2.2" />
-<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" />
-<!-- contents -->
-</head>
-<body>
-<p><a id="CACBHFIJ" name="CACBHFIJ"></a></p>
-<div class="sect3"><!-- infolevel="all" infotype="General" -->
-<h1>General information</h1>
-<p>This table lists the General properties available in the <span class="gui-object-title">Java Details view</span> for each mapping type.</p>
-<div class="inftblruleinformal">
-<table class="RuleInformal" title="This table describes the options on the Persistence Properties view." summary="This table describes the options on the Persistence Properties view." dir="ltr" border="1" width="100%" frame="border" rules="all" cellpadding="3" cellspacing="0">
-<col width="21%" />
-<col width="*" />
-<col width="27%" />
-<col width="21%" />
-<thead>
-<tr align="left" valign="top">
-<th align="left" valign="bottom" id="r1c1-t16">Property</th>
-<th align="left" valign="bottom" id="r1c2-t16">Description</th>
-<th align="left" valign="bottom" id="r1c3-t16">Default</th>
-<th align="left" valign="bottom" id="r1c4-t16">Available for Mapping Type</th>
-</tr>
-</thead>
-<tbody>
-<tr align="left" valign="top">
-<td align="left" id="r2c1-t16" headers="r1c1-t16">Mapping Type Hyperlink</td>
-<td align="left" headers="r2c1-t16 r1c2-t16">Clicking the name of the mapping type, which is represented as a hyperlink, invokes the Mapping Type Selection dialog. Use this dialog to specify the type of attribute.</td>
-<td align="left" headers="r2c1-t16 r1c3-t16">Basic</td>
-<td align="left" headers="r2c1-t16 r1c4-t16">All mapping types</td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r3c1-t16" headers="r1c1-t16"><a id="CACGCBHB" name="CACGCBHB"></a>Column</td>
-<td align="left" headers="r3c1-t16 r1c2-t16"><a id="sthref230" name="sthref230"></a><a id="sthref231" name="sthref231"></a>The database column that contains the value for the attribute. This field corresponds to the <code>@Column</code> annotation.</td>
-<td align="left" headers="r3c1-t16 r1c3-t16">By default, the Column is assumed to be named identically to the attribute.</td>
-<td align="left" headers="r3c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks010.htm#BABCBHDF">Embedded mapping</a>, <a href="tasks012.htm#BABGCBHG">ID mapping</a>, <a href="tasks018.htm#BABHIBII">Version mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r4c1-t16" headers="r1c1-t16">&nbsp;&nbsp;Name</td>
-<td align="left" headers="r4c1-t16 r1c2-t16">Name of the database column.
-<p>This field corresponds to the <code>@Column</code> annotation.</p>
-</td>
-<td align="left" headers="r4c1-t16 r1c3-t16"><br /></td>
-<td align="left" headers="r4c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks010.htm#BABCBHDF">Embedded mapping</a>, <a href="tasks012.htm#BABGCBHG">ID mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r5c1-t16" headers="r1c1-t16">&nbsp;&nbsp;Table</td>
-<td align="left" headers="r5c1-t16 r1c2-t16">Name of the database table that contains the selected column.</td>
-<td align="left" headers="r5c1-t16 r1c3-t16"><br /></td>
-<td align="left" headers="r5c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks010.htm#BABCBHDF">Embedded mapping</a>, <a href="tasks012.htm#BABGCBHG">ID mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r6c1-t16" headers="r1c1-t16">&nbsp;&nbsp;Insertable</td>
-<td align="left" headers="r6c1-t16 r1c2-t16">Specifies if the column is always included in <code>SQL INSERT</code> statements.</td>
-<td align="left" headers="r6c1-t16 r1c3-t16">True</td>
-<td align="left" headers="r6c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks010.htm#BABCBHDF">Embedded mapping</a>, <a href="tasks012.htm#BABGCBHG">ID mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r7c1-t16" headers="r1c1-t16">&nbsp;&nbsp;Updatable</td>
-<td align="left" headers="r7c1-t16 r1c2-t16">Specifies if this column is always included in <code>SQL UPDATE</code> statements.</td>
-<td align="left" headers="r7c1-t16 r1c3-t16">True</td>
-<td align="left" headers="r7c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks010.htm#BABCBHDF">Embedded mapping</a>, <a href="tasks012.htm#BABGCBHG">ID mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r8c1-t16" headers="r1c1-t16">&nbsp;&nbsp;Unique</td>
-<td align="left" headers="r8c1-t16 r1c2-t16">Sets the <code>UNIQUE</code> constraint for the column.</td>
-<td align="left" headers="r8c1-t16 r1c3-t16">False</td>
-<td align="left" headers="r8c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks010.htm#BABCBHDF">Embedded mapping</a>, <a href="tasks012.htm#BABGCBHG">ID mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r9c1-t16" headers="r1c1-t16">&nbsp;&nbsp;Nullable</td>
-<td align="left" headers="r9c1-t16 r1c2-t16">Specifies if the column allows null values.</td>
-<td align="left" headers="r9c1-t16 r1c3-t16">True</td>
-<td align="left" headers="r9c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks010.htm#BABCBHDF">Embedded mapping</a>, <a href="tasks012.htm#BABGCBHG">ID mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r10c1-t16" headers="r1c1-t16">&nbsp;&nbsp;Length</td>
-<td align="left" headers="r10c1-t16 r1c2-t16">Sets the column length.</td>
-<td align="left" headers="r10c1-t16 r1c3-t16">255</td>
-<td align="left" headers="r10c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks010.htm#BABCBHDF">Embedded mapping</a>, <a href="tasks012.htm#BABGCBHG">ID mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r11c1-t16" headers="r1c1-t16">&nbsp;&nbsp;Precision</td>
-<td align="left" headers="r11c1-t16 r1c2-t16">Sets the precision for the column values.</td>
-<td align="left" headers="r11c1-t16 r1c3-t16">0</td>
-<td align="left" headers="r11c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks010.htm#BABCBHDF">Embedded mapping</a>, <a href="tasks012.htm#BABGCBHG">ID mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r12c1-t16" headers="r1c1-t16">&nbsp;&nbsp;Scale</td>
-<td align="left" headers="r12c1-t16 r1c2-t16">Sets the number of digits that appear to the right of the decimal point.</td>
-<td align="left" headers="r12c1-t16 r1c3-t16">0</td>
-<td align="left" headers="r12c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks010.htm#BABCBHDF">Embedded mapping</a>, <a href="tasks012.htm#BABGCBHG">ID mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r13c1-t16" headers="r1c1-t16">&nbsp;&nbsp;Column Definition</td>
-<td align="left" headers="r13c1-t16 r1c2-t16">Define the DDL for a column. This is used when a table is being generated.</td>
-<td align="left" headers="r13c1-t16 r1c3-t16"><br /></td>
-<td align="left" headers="r13c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks010.htm#BABCBHDF">Embedded mapping</a>, <a href="tasks012.htm#BABGCBHG">ID mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r14c1-t16" headers="r1c1-t16"><a id="CACGGGHB" name="CACGGGHB"></a><a id="sthref232" name="sthref232"></a><a id="sthref233" name="sthref233"></a><a id="sthref234" name="sthref234"></a>Fetch Type</td>
-<td align="left" headers="r14c1-t16 r1c2-t16">Defines how data is loaded from the database:
-<ul>
-<li>
-<p>Eager &ndash; Data is loaded in before it is actually needed.</p>
-</li>
-<li>
-<p>Lazy &ndash; Data is loaded only when required by the transaction.</p>
-</li>
-</ul>
-</td>
-<td align="left" headers="r14c1-t16 r1c3-t16">Eager</td>
-<td align="left" headers="r14c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks016.htm#BABFHBCJ">One-to-one mapping</a>, <a href="tasks013.htm#BABEIEGD">Many-to-many mapping</a>, <a href="tasks014.htm#BABHFAFJ">Many-to-one mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r15c1-t16" headers="r1c1-t16">Optional</td>
-<td align="left" headers="r15c1-t16 r1c2-t16">Specifies if this field is can be null.</td>
-<td align="left" headers="r15c1-t16 r1c3-t16">Yes</td>
-<td align="left" headers="r15c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks016.htm#BABFHBCJ">One-to-one mapping</a>, <a href="tasks014.htm#BABHFAFJ">Many-to-one mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r16c1-t16" headers="r1c1-t16"><a id="CACBBIBI" name="CACBBIBI"></a><a id="sthref235" name="sthref235"></a>Lob</td>
-<td align="left" headers="r16c1-t16 r1c2-t16">Specify if the field is mapped to <code>java.sql.Clob</code> or <code>java.sql.Blob</code>.
-<p>This field corresponds to the <code>@Lob</code> annotation.</p>
-</td>
-<td align="left" headers="r16c1-t16 r1c3-t16"><br /></td>
-<td align="left" headers="r16c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a><br /></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r17c1-t16" headers="r1c1-t16"><a id="CACEAJGD" name="CACEAJGD"></a><a id="sthref236" name="sthref236"></a><a id="sthref237" name="sthref237"></a><a id="sthref238" name="sthref238"></a>Temporal</td>
-<td align="left" headers="r17c1-t16 r1c2-t16">Specifies if this field is one of the following:
-<ul>
-<li>
-<p>Date &ndash; <code>java.sql.Date</code></p>
-</li>
-<li>
-<p>Time &ndash; <code>java.sql.Time</code></p>
-</li>
-<li>
-<p>Timestamp &ndash; <code>java.sql.Timestamp</code></p>
-</li>
-</ul>
-<p>This field corresponds to the <code>@Temporal</code> annotation.</p>
-</td>
-<td align="left" headers="r17c1-t16 r1c3-t16"><br /></td>
-<td align="left" headers="r17c1-t16 r1c4-t16"><a href="tasks009.htm#BABBABCE">Basic mapping</a>, <a href="tasks012.htm#BABGCBHG">ID mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r18c1-t16" headers="r1c1-t16"><a id="sthref239" name="sthref239"></a><a id="sthref240" name="sthref240"></a><a id="sthref241" name="sthref241"></a>Enumerated</td>
-<td align="left" headers="r18c1-t16 r1c2-t16">Specify how to persist enumerated constraints if the <code>String</code> value suits your application requirements or to match an existing database schema.
-<ul>
-<li>
-<p>ordinal</p>
-</li>
-<li>
-<p><code>String</code></p>
-</li>
-</ul>
-<p>This field corresponds to the <code>@Enumerated</code> annotation.</p>
-</td>
-<td align="left" headers="r18c1-t16 r1c3-t16">Ordinal</td>
-<td align="left" headers="r18c1-t16 r1c4-t16"><br /></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r19c1-t16" headers="r1c1-t16">Target Entity</td>
-<td align="left" headers="r19c1-t16 r1c2-t16">The persistent entity to which the attribute is mapped.</td>
-<td align="left" headers="r19c1-t16 r1c3-t16"><br /></td>
-<td align="left" headers="r19c1-t16 r1c4-t16"><a href="tasks016.htm#BABFHBCJ">One-to-one mapping</a>, <a href="tasks015.htm#BABHGEBD">One-to-many mapping</a> <a href="tasks013.htm#BABEIEGD">Many-to-many mapping</a>, <a href="tasks014.htm#BABHFAFJ">Many-to-one mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r20c1-t16" headers="r1c1-t16"><a id="CACJAIHB" name="CACJAIHB"></a>Cascade Type</td>
-<td align="left" headers="r20c1-t16 r1c2-t16">Specify which operations are propagated throughout the entity.
-<ul>
-<li>
-<p>All &ndash; All operations</p>
-</li>
-<li>
-<p>Persist</p>
-</li>
-<li>
-<p>Merge</p>
-</li>
-<li>
-<p>Move</p>
-</li>
-<li>
-<p>Remove</p>
-</li>
-<li>
-<p>Refresh</p>
-</li>
-</ul>
-</td>
-<td align="left" headers="r20c1-t16 r1c3-t16"><br /></td>
-<td align="left" headers="r20c1-t16 r1c4-t16"><a href="tasks016.htm#BABFHBCJ">One-to-one mapping</a>, <a href="tasks015.htm#BABHGEBD">One-to-many mapping</a>, <a href="tasks013.htm#BABEIEGD">Many-to-many mapping</a>, <a href="tasks014.htm#BABHFAFJ">Many-to-one mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r21c1-t16" headers="r1c1-t16"><a id="CACJDJJA" name="CACJDJJA"></a>Mapped By</td>
-<td align="left" headers="r21c1-t16 r1c2-t16">The field in the database table that "owns" the relationship. This field is required only on the non-owning side of the relationship.</td>
-<td align="left" headers="r21c1-t16 r1c3-t16"><br /></td>
-<td align="left" headers="r21c1-t16 r1c4-t16"><a href="tasks016.htm#BABFHBCJ">One-to-one mapping</a>, <a href="tasks015.htm#BABHGEBD">One-to-many mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r22c1-t16" headers="r1c1-t16"><a id="CACDADIH" name="CACDADIH"></a><a id="sthref242" name="sthref242"></a><a id="sthref243" name="sthref243"></a>Order By</td>
-<td align="left" headers="r22c1-t16 r1c2-t16">Specify the default order for objects returned from a query:
-<ul>
-<li>
-<p>No ordering</p>
-</li>
-<li>
-<p>Primary key</p>
-</li>
-<li>
-<p>Custom ordering</p>
-</li>
-</ul>
-<p>This field corresponds to the <code>@OrderBy</code> annotation.</p>
-</td>
-<td align="left" headers="r22c1-t16 r1c3-t16">Primary key</td>
-<td align="left" headers="r22c1-t16 r1c4-t16"><a href="tasks015.htm#BABHGEBD">One-to-many mapping</a>. <a href="tasks013.htm#BABEIEGD">Many-to-many mapping</a>, <a href="tasks014.htm#BABHFAFJ">Many-to-one mapping</a></td>
-</tr>
-<tr align="left" valign="top">
-<td align="left" id="r23c1-t16" headers="r1c1-t16">Attribute Overrides</td>
-<td align="left" headers="r23c1-t16 r1c2-t16">Overrides <span class="bold">Basic</span> mappings of a mapped superclass (for example, if the inherited column name is incompatible with a pre-existing data model, or invalid as a column name in your database).</td>
-<td align="left" headers="r23c1-t16 r1c3-t16"><br /></td>
-<td align="left" headers="r23c1-t16 r1c4-t16"><a href="tasks010.htm#BABCBHDF">Embedded mapping</a>
-<p><a href="tasks010.htm#BABCBHDF">Embedded mapping</a></p>
-<br /></td>
-</tr>
-</tbody>
-</table>
-<br /></div>
-<!-- class="inftblruleinformal" -->
-<p>&nbsp;</p>
-<img src="img/ngrelt.png" alt="Related task" title="Related task" /><br />
-<br />
-<a href="task_mapping.htm#BABDGBIJ">Mapping an entity</a></div>
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-<a href="dcommon/html/cpyr.htm"><span class="copyrightlogo">Legal Notices</span></a></td>
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