295 lines
9.8 KiB
HTML
295 lines
9.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<!-- NewPage -->
|
|
<html lang="zh">
|
|
<head>
|
|
<!-- Generated by javadoc (1.8.0_101) on Wed Sep 14 13:10:27 CST 2016 -->
|
|
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
|
|
<title>GeneratedValue</title>
|
|
<meta name="date" content="2016-09-14">
|
|
<link rel="stylesheet" type="text/css" href="../../stylesheet.css" title="Style">
|
|
<script type="text/javascript" src="../../script.js"></script>
|
|
</head>
|
|
<body>
|
|
<script type="text/javascript"><!--
|
|
try {
|
|
if (location.href.indexOf('is-external=true') == -1) {
|
|
parent.document.title="GeneratedValue";
|
|
}
|
|
}
|
|
catch(err) {
|
|
}
|
|
//-->
|
|
</script>
|
|
<noscript>
|
|
<div>您的浏览器已禁用 JavaScript。</div>
|
|
</noscript>
|
|
<!-- ========= START OF TOP NAVBAR ======= -->
|
|
<div class="topNav"><a name="navbar.top">
|
|
<!-- -->
|
|
</a>
|
|
<div class="skipNav"><a href="#skip.navbar.top" title="跳过导航链接">跳过导航链接</a></div>
|
|
<a name="navbar.top.firstrow">
|
|
<!-- -->
|
|
</a>
|
|
<ul class="navList" title="导航">
|
|
<li><a href="../../overview-summary.html">概览</a></li>
|
|
<li><a href="package-summary.html">程序包</a></li>
|
|
<li class="navBarCell1Rev">类</li>
|
|
<li><a href="class-use/GeneratedValue.html">使用</a></li>
|
|
<li><a href="package-tree.html">树</a></li>
|
|
<li><a href="../../deprecated-list.html">已过时</a></li>
|
|
<li><a href="../../index-files/index-1.html">索引</a></li>
|
|
<li><a href="../../help-doc.html">帮助</a></li>
|
|
</ul>
|
|
</div>
|
|
<div class="subNav">
|
|
<ul class="navList">
|
|
<li><a href="../../javax/persistence/Entity.html" title="javax.persistence中的注释"><span class="typeNameLink">上一个类</span></a></li>
|
|
<li><a href="../../javax/persistence/GenerationType.html" title="javax.persistence中的枚举"><span class="typeNameLink">下一个类</span></a></li>
|
|
</ul>
|
|
<ul class="navList">
|
|
<li><a href="../../index.html?javax/persistence/GeneratedValue.html" target="_top">框架</a></li>
|
|
<li><a href="GeneratedValue.html" target="_top">无框架</a></li>
|
|
</ul>
|
|
<ul class="navList" id="allclasses_navbar_top">
|
|
<li><a href="../../allclasses-noframe.html">所有类</a></li>
|
|
</ul>
|
|
<div>
|
|
<script type="text/javascript"><!--
|
|
allClassesLink = document.getElementById("allclasses_navbar_top");
|
|
if(window==top) {
|
|
allClassesLink.style.display = "block";
|
|
}
|
|
else {
|
|
allClassesLink.style.display = "none";
|
|
}
|
|
//-->
|
|
</script>
|
|
</div>
|
|
<div>
|
|
<ul class="subNavList">
|
|
<li>概要: </li>
|
|
<li>字段 | </li>
|
|
<li>必需 | </li>
|
|
<li><a href="#annotation.type.optional.element.summary">可选</a></li>
|
|
</ul>
|
|
<ul class="subNavList">
|
|
<li>详细资料: </li>
|
|
<li>字段 | </li>
|
|
<li><a href="#annotation.type.element.detail">元素</a></li>
|
|
</ul>
|
|
</div>
|
|
<a name="skip.navbar.top">
|
|
<!-- -->
|
|
</a></div>
|
|
<!-- ========= END OF TOP NAVBAR ========= -->
|
|
<!-- ======== START OF CLASS DATA ======== -->
|
|
<div class="header">
|
|
<div class="subTitle">javax.persistence</div>
|
|
<h2 title="注释类型 GeneratedValue" class="title">注释类型 GeneratedValue</h2>
|
|
</div>
|
|
<div class="contentContainer">
|
|
<div class="description">
|
|
<ul class="blockList">
|
|
<li class="blockList">
|
|
<hr>
|
|
<br>
|
|
<pre>@Target(value={METHOD,FIELD})
|
|
@Retention(value=RUNTIME)
|
|
public @interface <span class="memberNameLabel">GeneratedValue</span></pre>
|
|
<div class="block">Provides for the specification of generation strategies for the
|
|
values of primary keys.
|
|
|
|
<p> The <code>GeneratedValue</code> annotation
|
|
may be applied to a primary key property or field of an entity or
|
|
mapped superclass in conjunction with the <a href="../../javax/persistence/Id.html" title="javax.persistence中的注释"><code>Id</code></a> annotation.
|
|
The use of the <code>GeneratedValue</code> annotation is only
|
|
required to be supported for simple primary keys. Use of the
|
|
<code>GeneratedValue</code> annotation is not supported for derived
|
|
primary keys.
|
|
|
|
<pre>
|
|
|
|
Example 1:
|
|
|
|
@Id
|
|
@GeneratedValue(strategy=SEQUENCE, generator="CUST_SEQ")
|
|
@Column(name="CUST_ID")
|
|
public Long getId() { return id; }
|
|
|
|
Example 2:
|
|
|
|
@Id
|
|
@GeneratedValue(strategy=TABLE, generator="CUST_GEN")
|
|
@Column(name="CUST_ID")
|
|
Long id;
|
|
</pre></div>
|
|
<dl>
|
|
<dt><span class="simpleTagLabel">从以下版本开始:</span></dt>
|
|
<dd>Java Persistence 1.0</dd>
|
|
<dt><span class="seeLabel">另请参阅:</span></dt>
|
|
<dd><a href="../../javax/persistence/Id.html" title="javax.persistence中的注释"><code>Id</code></a></dd>
|
|
</dl>
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
<div class="summary">
|
|
<ul class="blockList">
|
|
<li class="blockList">
|
|
<!-- =========== ANNOTATION TYPE OPTIONAL MEMBER SUMMARY =========== -->
|
|
<ul class="blockList">
|
|
<li class="blockList"><a name="annotation.type.optional.element.summary">
|
|
<!-- -->
|
|
</a>
|
|
<h3>可选元素概要</h3>
|
|
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="可选元素概要表, 列表可选元素和解释">
|
|
<caption><span>可选元素</span><span class="tabEnd"> </span></caption>
|
|
<tr>
|
|
<th class="colFirst" scope="col">限定符和类型</th>
|
|
<th class="colLast" scope="col">可选元素和说明</th>
|
|
</tr>
|
|
<tr class="altColor">
|
|
<td class="colFirst"><code>java.lang.String</code></td>
|
|
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/persistence/GeneratedValue.html#generator--">generator</a></span></code>
|
|
<div class="block"><span class="deprecatedLabel">已过时。</span> </div>
|
|
</td>
|
|
</tr>
|
|
<tr class="rowColor">
|
|
<td class="colFirst"><code><a href="../../javax/persistence/GenerationType.html" title="javax.persistence中的枚举">GenerationType</a></code></td>
|
|
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/persistence/GeneratedValue.html#strategy--">strategy</a></span></code>
|
|
<div class="block"><span class="deprecatedLabel">已过时。</span> </div>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
</li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
<div class="details">
|
|
<ul class="blockList">
|
|
<li class="blockList">
|
|
<!-- ============ ANNOTATION TYPE MEMBER DETAIL =========== -->
|
|
<ul class="blockList">
|
|
<li class="blockList"><a name="annotation.type.element.detail">
|
|
<!-- -->
|
|
</a>
|
|
<h3>元素详细资料</h3>
|
|
<a name="strategy--">
|
|
<!-- -->
|
|
</a>
|
|
<ul class="blockList">
|
|
<li class="blockList">
|
|
<h4>strategy</h4>
|
|
<pre>@Deprecated
|
|
public abstract <a href="../../javax/persistence/GenerationType.html" title="javax.persistence中的枚举">GenerationType</a> strategy</pre>
|
|
<div class="block"><span class="deprecatedLabel">已过时。</span> </div>
|
|
<div class="block">(Optional) The primary key generation strategy
|
|
that the persistence provider must use to
|
|
generate the annotated entity primary key.</div>
|
|
<dl>
|
|
<dt><span class="returnLabel">返回:</span></dt>
|
|
<dd>GenerationType</dd>
|
|
</dl>
|
|
<dl>
|
|
<dt>默认值:</dt>
|
|
<dd>javax.persistence.GenerationType.AUTO</dd>
|
|
</dl>
|
|
</li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
<ul class="blockList">
|
|
<li class="blockList"><a name="generator--">
|
|
<!-- -->
|
|
</a>
|
|
<ul class="blockListLast">
|
|
<li class="blockList">
|
|
<h4>generator</h4>
|
|
<pre>@Deprecated
|
|
public abstract java.lang.String generator</pre>
|
|
<div class="block"><span class="deprecatedLabel">已过时。</span> </div>
|
|
<div class="block">(Optional) The name of the primary key generator
|
|
to use as specified in the SequenceGenerator
|
|
or TableGenerator annotation.
|
|
<p> Defaults to the id generator supplied by persistence provider.</div>
|
|
<dl>
|
|
<dt><span class="returnLabel">返回:</span></dt>
|
|
<dd>String</dd>
|
|
</dl>
|
|
<dl>
|
|
<dt>默认值:</dt>
|
|
<dd>""</dd>
|
|
</dl>
|
|
</li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
</div>
|
|
<!-- ========= END OF CLASS DATA ========= -->
|
|
<!-- ======= START OF BOTTOM NAVBAR ====== -->
|
|
<div class="bottomNav"><a name="navbar.bottom">
|
|
<!-- -->
|
|
</a>
|
|
<div class="skipNav"><a href="#skip.navbar.bottom" title="跳过导航链接">跳过导航链接</a></div>
|
|
<a name="navbar.bottom.firstrow">
|
|
<!-- -->
|
|
</a>
|
|
<ul class="navList" title="导航">
|
|
<li><a href="../../overview-summary.html">概览</a></li>
|
|
<li><a href="package-summary.html">程序包</a></li>
|
|
<li class="navBarCell1Rev">类</li>
|
|
<li><a href="class-use/GeneratedValue.html">使用</a></li>
|
|
<li><a href="package-tree.html">树</a></li>
|
|
<li><a href="../../deprecated-list.html">已过时</a></li>
|
|
<li><a href="../../index-files/index-1.html">索引</a></li>
|
|
<li><a href="../../help-doc.html">帮助</a></li>
|
|
</ul>
|
|
</div>
|
|
<div class="subNav">
|
|
<ul class="navList">
|
|
<li><a href="../../javax/persistence/Entity.html" title="javax.persistence中的注释"><span class="typeNameLink">上一个类</span></a></li>
|
|
<li><a href="../../javax/persistence/GenerationType.html" title="javax.persistence中的枚举"><span class="typeNameLink">下一个类</span></a></li>
|
|
</ul>
|
|
<ul class="navList">
|
|
<li><a href="../../index.html?javax/persistence/GeneratedValue.html" target="_top">框架</a></li>
|
|
<li><a href="GeneratedValue.html" target="_top">无框架</a></li>
|
|
</ul>
|
|
<ul class="navList" id="allclasses_navbar_bottom">
|
|
<li><a href="../../allclasses-noframe.html">所有类</a></li>
|
|
</ul>
|
|
<div>
|
|
<script type="text/javascript"><!--
|
|
allClassesLink = document.getElementById("allclasses_navbar_bottom");
|
|
if(window==top) {
|
|
allClassesLink.style.display = "block";
|
|
}
|
|
else {
|
|
allClassesLink.style.display = "none";
|
|
}
|
|
//-->
|
|
</script>
|
|
</div>
|
|
<div>
|
|
<ul class="subNavList">
|
|
<li>概要: </li>
|
|
<li>字段 | </li>
|
|
<li>必需 | </li>
|
|
<li><a href="#annotation.type.optional.element.summary">可选</a></li>
|
|
</ul>
|
|
<ul class="subNavList">
|
|
<li>详细资料: </li>
|
|
<li>字段 | </li>
|
|
<li><a href="#annotation.type.element.detail">元素</a></li>
|
|
</ul>
|
|
</div>
|
|
<a name="skip.navbar.bottom">
|
|
<!-- -->
|
|
</a></div>
|
|
<!-- ======== END OF BOTTOM NAVBAR ======= -->
|
|
</body>
|
|
</html>
|