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<div class="header">
<div class="subTitle">
compact3
</div>
<div class="subTitle">
javax.sql.rowset.serial
</div>
<h2 class="title" title="Class SerialClob">Class SerialClob</h2>
</div><div class="contentContainer">
<ul class="inheritance">
<li><a href="../../../../java/lang/Object.html" title="class in java.lang">java.lang.Object</a></li>
<li>
<ul class="inheritance">
<li>javax.sql.rowset.serial.SerialClob</li>
</ul> </li>
</ul>
<div class="description">
<ul class="blockList">
<li class="blockList">
<dl>
<dt>
All Implemented Interfaces:
</dt>
<dd>
<span><a href="../../../../java/io/Serializable.html" title="java.io中的接口">Serializable</a> ， <a href="../../../../java/lang/Cloneable.html" title="java.lang中的接口">Cloneable</a> ， <a href="../../../../java/sql/Clob.html" title="java.sql中的接口">Clob</a></span>
</dd>
</dl>
<hr/> <br/> <pre>public class <span class="typeNameLabel">SerialClob</span>
extends <a href="../../../../java/lang/Object.html" title="class in java.lang">Object</a>
implements <a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a>, <a href="../../../../java/io/Serializable.html" title="interface in java.io">Serializable</a>, <a href="../../../../java/lang/Cloneable.html" title="interface in java.lang">Cloneable</a></pre>
<div class="block">
<span>在Java编程语言中的序列化映射为SQL <code>CLOB</code>值。</span>
<p> <span><code>SerialClob</code>类提供了一个用于从<code>Clob</code>对象创建实例的<code>Clob</code>函数。</span> <span>请注意， <code>Clob</code>对象应该在将<code>SerialClob</code>对象从其构造之前将SQL <code>CLOB</code>的数据带到客户端。</span> <span>SQL <code>CLOB</code>值的数据可以作为Unicode字符流在客户端上实现。</span> </p>
<p> <span><code>SerialClob</code>方法使得可以从<code>SerialClob</code>对象获取子<code>SerialClob</code>或找到字符模式的开始。</span> </p>
<h3> <span>线程安全</span> </h3>
<p> <span>SerialClob不能安全地被多个并发线程使用。</span> <span>如果一个SerialClob要由多个线程使用，则应该通过适当的同步来控制对SerialClob的访问。</span> </p>
</div>
<dl>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../../serialized-form.html#javax.sql.rowset.serial.SerialClob">Serialized Form</a>
</dd>
</dl> </li>
</ul>
</div>
<div class="summary">
<ul class="blockList">
<li class="blockList">
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<ul class="blockList">
<li class="blockList"><a name="constructor.summary">
<!-- --> </a> <h3>构造方法摘要</h3>
<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Constructor Summary table, listing constructors, and an explanation">
<caption>
<span>构造方法</span>
<span class="tabEnd"> </span>
</caption>
<tbody>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#SerialClob-char:A-">SerialClob</a></span>(char[] ch)</code>
<div class="block">
构造一个
<code>SerialClob</code>对象，它是给定的
<code>char</code>数组的序列化版本。
</div> </td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#SerialClob-java.sql.Clob-">SerialClob</a></span>(<a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a> clob)</code>
<div class="block">
构造一个
<code>SerialClob</code>对象，它是给定的
<code>Clob</code>对象的序列化版本。
</div> </td>
</tr>
</tbody>
</table> </li>
</ul>
<!-- ========== METHOD SUMMARY =========== -->
<ul class="blockList">
<li class="blockList"><a name="method.summary">
<!-- --> </a> <h3>方法摘要</h3>
<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
<caption>
<span class="activeTableTab" id="t0"><span>所有方法</span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t2"><span><a href="javascript:show(2);">接口方法</a></span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t4"><span><a href="javascript:show(8);">具体的方法</a></span><span class="tabEnd"> </span></span>
</caption>
<tbody>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor" id="i0">
<td class="colFirst"><code><a href="../../../../java/lang/Object.html" title="class in java.lang">Object</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#clone--">clone</a></span>()</code>
<div class="block">
返回此
<code>SerialClob</code>的克隆。
</div> </td>
</tr>
<tr class="rowColor" id="i1">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#equals-java.lang.Object-">equals</a></span>(<a href="../../../../java/lang/Object.html" title="class in java.lang">Object</a> obj)</code>
<div class="block">
将此SerialClob与指定对象进行比较。
</div> </td>
</tr>
<tr class="altColor" id="i2">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#free--">free</a></span>()</code>
<div class="block">
此方法可以释放
<code>SeriableClob</code>对象并释放它所拥有的资源。
</div> </td>
</tr>
<tr class="rowColor" id="i3">
<td class="colFirst"><code><a href="../../../../java/io/InputStream.html" title="class in java.io">InputStream</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#getAsciiStream--">getAsciiStream</a></span>()</code>
<div class="block">
将此
<code>SerialClob</code>对象指定的
<code>CLOB</code>值作为ascii流
<code>SerialClob</code> 。
</div> </td>
</tr>
<tr class="altColor" id="i4">
<td class="colFirst"><code><a href="../../../../java/io/Reader.html" title="class in java.io">Reader</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#getCharacterStream--">getCharacterStream</a></span>()</code>
<div class="block">
将此
<code>SerialClob</code>对象的数据作为Unicode字符流返回。
</div> </td>
</tr>
<tr class="rowColor" id="i5">
<td class="colFirst"><code><a href="../../../../java/io/Reader.html" title="class in java.io">Reader</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#getCharacterStream-long-long-">getCharacterStream</a></span>(long pos, long length)</code>
<div class="block">
返回一个包含部分
<code>SerialClob</code>值的
<code>Reader</code>对象，以pos指定的字符开头，长度为长度字符。
</div> </td>
</tr>
<tr class="altColor" id="i6">
<td class="colFirst"><code><a href="../../../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#getSubString-long-int-">getSubString</a></span>(long pos, int length)</code>
<div class="block">
返回此
<code>SerialClob</code>对象中包含的子字符串的副本，从给定位置开始，并继续指定的数字或字符。
</div> </td>
</tr>
<tr class="rowColor" id="i7">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#hashCode--">hashCode</a></span>()</code>
<div class="block">
返回此
<code>SerialClob</code>的哈希码。
</div> </td>
</tr>
<tr class="altColor" id="i8">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#length--">length</a></span>()</code>
<div class="block">
检索此
<code>SerialClob</code>对象的字符数组中的字符数。
</div> </td>
</tr>
<tr class="rowColor" id="i9">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#position-java.sql.Clob-long-">position</a></span>(<a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a> searchStr, long start)</code>
<div class="block">
返回此
<code>SerialClob</code>对象的位置，其中给定的
<code>Clob</code>签名开始，在指定位置开始搜索。
</div> </td>
</tr>
<tr class="altColor" id="i10">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#position-java.lang.String-long-">position</a></span>(<a href="../../../../java/lang/String.html" title="class in java.lang">String</a> searchStr, long start)</code>
<div class="block">
返回此
<code>SerialClob</code>对象中的位置，给定的
<code>String</code>对象开始，开始在指定位置的搜索。
</div> </td>
</tr>
<tr class="rowColor" id="i11">
<td class="colFirst"><code><a href="../../../../java/io/OutputStream.html" title="class in java.io">OutputStream</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#setAsciiStream-long-">setAsciiStream</a></span>(long pos)</code>
<div class="block">
检索用于将Ascii字符写入
<code>SerialClob</code>对象所代表的
<code>CLOB</code>值的流，从位置
<code>pos</code>开始。
</div> </td>
</tr>
<tr class="altColor" id="i12">
<td class="colFirst"><code><a href="../../../../java/io/Writer.html" title="class in java.io">Writer</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#setCharacterStream-long-">setCharacterStream</a></span>(long pos)</code>
<div class="block">
检索用于将Unicode字符流写入此
<code>SerialClob</code>对象表示的
<code>CLOB</code>值的流，位置为
<code>pos</code> 。
</div> </td>
</tr>
<tr class="rowColor" id="i13">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#setString-long-java.lang.String-">setString</a></span>(long pos, <a href="../../../../java/lang/String.html" title="class in java.lang">String</a> str)</code>
<div class="block">
将给定的Java
<code>String</code>写入
<code>SerialClob</code>对象表示的
<code>CLOB</code>值，位于位置
<code>pos</code> 。
</div> </td>
</tr>
<tr class="altColor" id="i14">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#setString-long-java.lang.String-int-int-">setString</a></span>(long pos, <a href="../../../../java/lang/String.html" title="class in java.lang">String</a> str, int offset, int length)</code>
<div class="block">
写入
<code>len</code>的字符
<code>str</code> ，起始于字符
<code>offset</code>到
<code>CLOB</code>值，这
<code>Clob</code>表示。
</div> </td>
</tr>
<tr class="rowColor" id="i15">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../javax/sql/rowset/serial/SerialClob.html#truncate-long-">truncate</a></span>(long length)</code>
<div class="block">
截断此
<code>SerialClob</code>对象所代表的
<code>CLOB</code>值，使其长度为
<code>len</code>字符。
</div> </td>
</tr>
</tbody>
</table>
<ul class="blockList">
<li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
<!-- --> </a> <h3>Methods inherited from class java.lang.<a href="../../../../java/lang/Object.html" title="class in java.lang">Object</a></h3> <code><a href="../../../../java/lang/Object.html#finalize--">finalize</a>, <a href="../../../../java/lang/Object.html#getClass--">getClass</a>, <a href="../../../../java/lang/Object.html#notify--">notify</a>, <a href="../../../../java/lang/Object.html#notifyAll--">notifyAll</a>, <a href="../../../../java/lang/Object.html#toString--">toString</a>, <a href="../../../../java/lang/Object.html#wait--">wait</a>, <a href="../../../../java/lang/Object.html#wait-long-">wait</a>, <a href="../../../../java/lang/Object.html#wait-long-int-">wait</a></code></li>
</ul> </li>
</ul> </li>
</ul>
</div>
<div class="details">
<ul class="blockList">
<li class="blockList">
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<ul class="blockList">
<li class="blockList"><a name="constructor.detail">
<!-- --> </a> <h3>构造方法详细信息</h3> <a name="SerialClob-char:A-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>SerialClob</h4> <pre>public SerialClob(char[] ch)
throws <a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a>,
<a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></pre>
<div class="block">
<span>构造一个<code>SerialClob</code>对象，它是给定的<code>char</code>数组的序列化版本。</span>
<p> <span>新的<code>SerialClob</code>对象使用<code>char</code>阵列的数据<code>char</code> ，从而允许断开的<code>RowSet</code>对象建立一个序列化的<code>Clob</code>对象，而不用触摸数据源。</span> </p>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>ch</code> - 表示要序列化的
<code>Clob</code>对象的char数组
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> - 如果在序列化期间发生错误
</dd>
<dd>
<code><a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></code> - 如果发生SQL错误
</dd>
</dl> </li>
</ul> <a name="SerialClob-java.sql.Clob-">
<!-- --> </a>
<ul class="blockListLast">
<li class="blockList"> <h4>SerialClob</h4> <pre>public SerialClob(<a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a> clob)
throws <a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a>,
<a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></pre>
<div class="block">
<span>构造一个<code>SerialClob</code>对象，该对象是给定<code>Clob</code>对象的序列化版本。</span>
<p> <span>新的<code>SerialClob</code>对象使用<code>SerialClob</code>对象的数据进行<code>Clob</code> ;</span> <span>因此， <code>Clob</code>对象之前应该已经将SQL <code>CLOB</code>的数据从数据库提交给客户端。</span> <span>否则，新的<code>SerialClob</code>对象对象将不包含任何数据。</span> </p>
<p> <span>注意：提供给此构造函数的<code>Clob</code>对象必须为<code>Clob.getCharacterStream()</code>和<code>Clob.getAsciiStream</code>方法返回非空值。</span> <span>这<code>SerialClob</code>构造函数不能序列化<code>Clob</code>在这个实例对象，将抛出<code>SQLException</code>对象。</span> </p>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<span><code>clob</code> - 要<code>Clob</code>此<code>SerialClob</code>对象的<code>SerialClob</code>对象;</span>
<span>不能为空</span>
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> - 如果在序列化期间发生错误
</dd>
<dd>
<span><code><a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></code> - 如果在捕获CLOB时发生SQL错误;</span>
<span>如果<code>Clob</code>对象为空;</span>
<span>或者如果满足<code>Clob.getCharacterStream()</code>和<code>Clob.getAsciiStream()</code>的方法<code>Clob</code>返回一个空</span>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../../../java/sql/Clob.html" title="java.sql中的接口"><code>Clob</code></a></span>
</dd>
</dl> </li>
</ul> </li>
</ul>
<!-- ============ METHOD DETAIL ========== -->
<ul class="blockList">
<li class="blockList"><a name="method.detail">
<!-- --> </a> <h3>方法详细信息</h3> <a name="length--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>length</h4> <pre>public long length()
throws <a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></pre>
<div class="block">
检索此
<code>SerialClob</code>对象的字符数组中的字符数。
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../../java/sql/Clob.html#length--">length</a></code>在界面
<code><a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
一个
<code>long</code>表示这个
<code>SerialClob</code>对象的字符数组的字符长度
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<span><code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> - 如果发生错误;</span>
<span>如果<code>free</code>以前曾被调用此对象</span>
</dd>
</dl> </li>
</ul> <a name="getCharacterStream--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getCharacterStream</h4> <pre>public <a href="../../../../java/io/Reader.html" title="class in java.io">Reader</a> getCharacterStream()
throws <a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></pre>
<div class="block">
<span>将此<code>SerialClob</code>对象的数据作为Unicode字符流返回。</span>
<span>与相关方法<code>getAsciiStream</code>不同，无论<code>SerialClob</code>对象是使用<code>Clob</code>对象还是<code>char</code>数组创建，都会生成流。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../../java/sql/Clob.html#getCharacterStream--">getCharacterStream</a></code>在界面
<code><a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
一个
<code>java.io.Reader</code>此
<code>SerialClob</code>对象数据的
<code>SerialClob</code>对象
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<span><code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> - 如果发生错误;</span>
<span>如果<code>free</code>以前已经被调用了这个对象</span>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../../java/sql/Clob.html#setCharacterStream-long-"><code>Clob.setCharacterStream(long)</code></a>
</dd>
</dl> </li>
</ul> <a name="getAsciiStream--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getAsciiStream</h4> <pre>public <a href="../../../../java/io/InputStream.html" title="class in java.io">InputStream</a> getAsciiStream()
throws <a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a>,
<a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></pre>
<div class="block">
<span>获取此<code>SerialClob</code>对象指定的<code>CLOB</code>值作为ascii流。</span>
<span>此方法转发<code>getAsciiStream</code>呼叫到底层<code>Clob</code>在事件对象，这<code>SerialClob</code>对象被实例化与<code>Clob</code>对象。</span>
<span>如果此<code>SerialClob</code>对象使用<code>char</code>数组实例化，则抛出<code>SerialException</code>对象。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../../java/sql/Clob.html#getAsciiStream--">getAsciiStream</a></code>在界面
<code><a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
一个
<code>java.io.InputStream</code>此
<code>SerialClob</code>对象数据的
<code>SerialClob</code>对象
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<span><code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> - 如果此<code>SerialClob</code>对象未被实例<code>Clob</code>对象;</span>
<span>如果<code>free</code>以前已经被调用了这个对象</span>
</dd>
<dd>
<code><a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></code> - 如果访问由用于创建此
<code>SerialClob</code>对象的
<code>Clob</code>对象表示的
<code>CLOB</code>值存在错误
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../../java/sql/Clob.html#setAsciiStream-long-"><code>Clob.setAsciiStream(long)</code></a>
</dd>
</dl> </li>
</ul> <a name="getSubString-long-int-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getSubString</h4> <pre>public <a href="../../../../java/lang/String.html" title="class in java.lang">String</a> getSubString(long pos,
int length)
throws <a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></pre>
<div class="block">
返回此
<code>SerialClob</code>对象中包含的子字符串的副本，从给定位置开始，并继续指定的数字或字符。
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../../java/sql/Clob.html#getSubString-long-int-">getSubString</a></code>在界面
<code><a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<span><code>pos</code> - 要复制的子串中第一个字符的位置;</span>
<span><code>SerialClob</code>对象的第一个字符在位置<code>1</code> ;</span>
<span>不得小于<code>1</code> ，并且<code>1</code>的起始位置和长度的总和必须小于此<code>SerialClob</code>对象的长度</span>
</dd>
<dd>
<span><code>length</code> - 要返回的子字符串中的字符数;</span>
<span>不能大于此<code>SerialClob</code>对象的长度，并且子字符串的起始位置和长度之和必须小于此<code>SerialClob</code>对象的长度</span>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
一个
<code>String</code>对象，该对象包含该给定位置开始的并包含指定数量的连续字符的
<code>SerialClob</code>对象的子字符串
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<span><code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> - 如果任一参数超出范围;</span>
<span>如果<code>free</code>以前已经被调用了这个对象</span>
</dd>
</dl> </li>
</ul> <a name="position-java.lang.String-long-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>position</h4> <pre>public long position(<a href="../../../../java/lang/String.html" title="class in java.lang">String</a> searchStr,
long start)
throws <a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a>,
<a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></pre>
<div class="block">
<span>返回此<code>SerialClob</code>对象中的位置，给定的<code>String</code>对象开始，开始在指定位置的搜索。</span>
<span>如果找不到该模式，此方法返回<code>-1</code> 。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../../java/sql/Clob.html#position-java.lang.String-long-">position</a></code>在界面
<code><a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>searchStr</code> - 要搜索的
<code>String</code>对象
</dd>
<dd>
<span><code>start</code> - 在此<code>SerialClob</code>对象中的位置开始搜索;</span>
<span>第一名是<code>1</code> ;</span>
<span>不得小于<code>1</code>也不得大于此<code>SerialClob</code>对象的长度</span>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<span>给定<code>String</code>对象开始的位置，在指定位置开始搜索;</span>
<span><code>-1</code>如果给定的<code>String</code>对象未找到或起始位置超出范围;</span>
<span>返回值的位置编号从<code>1</code>开始</span>
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> - 如果
<code>free</code>方法以前是在此对象上调用的
</dd>
<dd>
<code><a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></code> - 如果从数据库访问Clob值时出错。
</dd>
</dl> </li>
</ul> <a name="position-java.sql.Clob-long-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>position</h4> <pre>public long position(<a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a> searchStr,
long start)
throws <a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a>,
<a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></pre>
<div class="block">
<span>返回此<code>SerialClob</code>对象的位置，其中给定的<code>Clob</code>签名开始，在指定位置开始搜索。</span>
<span>如果找不到该模式，此方法返回<code>-1</code> 。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../../java/sql/Clob.html#position-java.sql.Clob-long-">position</a></code>在界面
<code><a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>searchStr</code> - 要搜索的
<code>Clob</code>对象
</dd>
<dd>
<span><code>start</code> - 在此<code>SerialClob</code>对象中的位置开始搜索;</span>
<span>第一名是<code>1</code> ;</span>
<span>不得小于<code>1</code>也不得大于此<code>SerialClob</code>对象的长度</span>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
给定的
<code>Clob</code>对象在指定的起始位置或之后在该
<code>SerialClob</code>对象中开始的位置
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<span><code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> - 如果定位Clob签名出现错误;</span>
<span>如果<code>free</code>方法以前曾被调用此对象</span>
</dd>
<dd>
<code><a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></code> - 从数据库访问Clob值时是否存在错误
</dd>
</dl> </li>
</ul> <a name="setString-long-java.lang.String-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setString</h4> <pre>public int setString(long pos,
<a href="../../../../java/lang/String.html" title="class in java.lang">String</a> str)
throws <a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></pre>
<div class="block">
将给定的Java
<code>String</code>写入
<code>SerialClob</code>对象表示的
<code>CLOB</code>值，位于位置
<code>pos</code> 。
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../../java/sql/Clob.html#setString-long-java.lang.String-">setString</a></code>在界面
<code><a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<span><code>pos</code> - 开始写入这个<code>SerialClob</code>对象所代表的<code>CLOB</code>值的位置;</span>
<span>第一名是<code>1</code> ;</span>
<span>不得小于<code>1</code>也不得大于此<code>SerialClob</code>对象的长度</span>
</dd>
<dd>
<code>str</code> -字符串写入到
<code>CLOB</code>值，这
<code>SerialClob</code>对象表示
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
写入的字符数
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<span><code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> - 访问<code>CLOB</code>值时是否有错误;</span>
<span>如果设置无效位置;</span>
<span>如果设置了无效的偏移值;</span>
<span>要写入的字节数大于<code>SerialClob</code>长度;</span>
<span>或长度和偏移的组合值大于Clob缓冲区;</span>
<span>如果<code>free</code>方法以前曾被调用此对象</span>
</dd>
</dl> </li>
</ul> <a name="setString-long-java.lang.String-int-int-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setString</h4> <pre>public int setString(long pos,
<a href="../../../../java/lang/String.html" title="class in java.lang">String</a> str,
int offset,
int length)
throws <a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></pre>
<div class="block">
写入
<code>len</code>的字符
<code>str</code> ，起始于字符
<code>offset</code>到
<code>CLOB</code>值，这
<code>Clob</code>表示。
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../../java/sql/Clob.html#setString-long-java.lang.String-int-int-">setString</a></code>在界面
<code><a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<span><code>pos</code> - 开始写入此<code>SerialClob</code>对象所代表的<code>CLOB</code>值的位置;</span>
<span>第一名是<code>1</code> ;</span>
<span>不得低于<code>1</code>也不得大于此<code>SerialClob</code>对象的长度</span>
</dd>
<dd>
<code>str</code> - 要写入
<code>Clob</code>对象代表的
<code>CLOB</code>值的字符串
</dd>
<dd>
<code>offset</code> - 偏移到
<code>str</code>开始读取要写入的字符
</dd>
<dd>
<code>length</code> - 要写入的字符数
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
写入的字符数
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<span><code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> -如果有访问误差<code>CLOB</code>值;</span>
<span>如果设置无效位置;</span>
<span>如果设置了无效的偏移值;</span>
<span>要写入的字节数大于<code>SerialClob</code>长度;</span>
<span>或长度和偏移的组合值大于Clob缓冲区;</span>
<span>如果<code>free</code>方法以前曾被调用此对象</span>
</dd>
</dl> </li>
</ul> <a name="setAsciiStream-long-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setAsciiStream</h4> <pre>public <a href="../../../../java/io/OutputStream.html" title="class in java.io">OutputStream</a> setAsciiStream(long pos)
throws <a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a>,
<a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></pre>
<div class="block">
<span>检索用于将Ascii字符写入<code>SerialClob</code>对象表示的<code>CLOB</code>值的流，从位置<code>pos</code>开始。</span>
<span>此方法转发<code>setAsciiStream()</code>呼叫到底层<code>Clob</code>在事件对象，这<code>SerialClob</code>对象被实例化与<code>Clob</code>对象。</span>
<span>如果此<code>SerialClob</code>对象使用<code>char</code>数组实例化，则抛出<code>SerialException</code>对象。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../../java/sql/Clob.html#setAsciiStream-long-">setAsciiStream</a></code>在界面
<code><a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>pos</code> - 开始写入
<code>CLOB</code>对象的位置
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
可以写入ASCII编码字符的流
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<span><code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> - 如果没有使用Clob对象实例化SerialClob;</span>
<span>如果<code>free</code>方法以前曾被调用此对象</span>
</dd>
<dd>
<code><a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></code> - 访问
<code>CLOB</code>值时是否存在错误
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../../javax/sql/rowset/serial/SerialClob.html#getAsciiStream--"><code>getAsciiStream()</code></a>
</dd>
</dl> </li>
</ul> <a name="setCharacterStream-long-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setCharacterStream</h4> <pre>public <a href="../../../../java/io/Writer.html" title="class in java.io">Writer</a> setCharacterStream(long pos)
throws <a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a>,
<a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></pre>
<div class="block">
<span>检索用于将Unicode字符流写入<code>SerialClob</code>对象所代表的<code>CLOB</code>值的流，位置为<code>pos</code> 。</span>
<span>此方法转发<code>setCharacterStream()</code>呼叫到底层<code>Clob</code>在事件对象，这<code>SerialClob</code>对象被实例化与<code>Clob</code>对象。</span>
<span>如果此<code>SerialClob</code>对象使用<code>char</code>数组<code>SerialException</code>则抛出<code>SerialException</code> 。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../../java/sql/Clob.html#setCharacterStream-long-">setCharacterStream</a></code>在界面
<code><a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>pos</code> - 开始写入
<code>CLOB</code>值的位置
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
可编写Unicode编码字符的流
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<span><code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> - 如果SerialClob未用Clob对象实例化;</span>
<span>如果<code>free</code>方法以前曾被调用此对象</span>
</dd>
<dd>
<code><a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></code> - 访问
<code>CLOB</code>值时是否存在错误
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../../javax/sql/rowset/serial/SerialClob.html#getCharacterStream--"><code>getCharacterStream()</code></a>
</dd>
</dl> </li>
</ul> <a name="truncate-long-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>truncate</h4> <pre>public void truncate(long length)
throws <a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></pre>
<div class="block">
<span>截断此<code>SerialClob</code>对象所代表的<code>CLOB</code>值，以使其长度为<code>len</code>字符。</span>
<p> <span>将<code>SerialClob</code>对象<code>SerialClob</code>为0，具有清除其内容的效果。</span> </p>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../../java/sql/Clob.html#truncate-long-">truncate</a></code>在界面
<code><a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>length</code> - 应截断
<code>CLOB</code>值的长度（以字节为单位）
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<span><code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> - 访问<code>CLOB</code>值时是否有错误;</span>
<span>如果<code>free</code>方法以前曾被调用此对象</span>
</dd>
</dl> </li>
</ul> <a name="getCharacterStream-long-long-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getCharacterStream</h4> <pre>public <a href="../../../../java/io/Reader.html" title="class in java.io">Reader</a> getCharacterStream(long pos,
long length)
throws <a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></pre>
<div class="block">
返回一个包含部分
<code>SerialClob</code>值的
<code>Reader</code>对象，以pos指定的字符开头，长度为长度字符。
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../../java/sql/Clob.html#getCharacterStream-long-long-">getCharacterStream</a></code>在界面
<code><a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<span><code>pos</code> - 要检索的部分值的第一个字符的偏移量。</span>
<span>在第一个字符<code>SerialClob</code>是在位置1。</span>
</dd>
<dd>
<code>length</code> - 要检索的部分值的字符长度。
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>Reader</code>可以读取部分
<code>SerialClob</code>值。
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></code> - 如果pos小于1或pos大于SerialClob中的
<code>SerialClob</code>数，或者如果pos +长度大于SerialClob中的
<code>SerialClob</code> ;
</dd>
<dd>
<code><a href="../../../../javax/sql/rowset/serial/SerialException.html" title="class in javax.sql.rowset.serial">SerialException</a></code> - 如果
<code>free</code>方法以前是在此对象上调用的
</dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.6
</dd>
</dl> </li>
</ul> <a name="free--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>free</h4> <pre>public void free()
throws <a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></pre>
<div class="block">
<span>此方法可以释放<code>SeriableClob</code>对象并释放其拥有的资源。</span>
<span>调用<code>free</code>方法后，该对象无效。</span>
<p> <span>如果<code>free</code>被多次调用，在后续调用<code>free</code>被视为无操作。</span> </p>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../../../java/sql/Clob.html#free--">free</a></code>在界面
<code><a href="../../../../java/sql/Clob.html" title="interface in java.sql">Clob</a></code>
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></code> - 如果发生错误，释放Clob的资源
</dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.6
</dd>
</dl> </li>
</ul> <a name="equals-java.lang.Object-">
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<ul class="blockList">
<li class="blockList"> <h4>equals</h4> <pre>public boolean equals(<a href="../../../../java/lang/Object.html" title="class in java.lang">Object</a> obj)</pre>
<div class="block">
<span>将此SerialClob与指定对象进行比较。</span>
<span>其结果是<code>true</code>当且仅当该参数不是<code>null</code>并且是<code>SerialClob</code>对象，表示相同的字符序列作为该对象。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../../../java/lang/Object.html#equals-java.lang.Object-">equals</a></code>在类别
<code><a href="../../../../java/lang/Object.html" title="class in java.lang">Object</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>obj</code> - 对比这个
<code>SerialClob</code>的对象
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>true</code>如果给定的对象代表一个
<code>SerialClob</code>相当于此SerialClob，
<code>false</code>否则
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../../../java/lang/Object.html#hashCode--"><code>Object.hashCode()</code></a> ， <a href="../../../../java/util/HashMap.html" title="java.util中的类"><code>HashMap</code></a></span>
</dd>
</dl> </li>
</ul> <a name="hashCode--">
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<ul class="blockList">
<li class="blockList"> <h4>hashCode</h4> <pre>public int hashCode()</pre>
<div class="block">
返回这个
<code>SerialClob</code>的哈希码。
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../../../java/lang/Object.html#hashCode--">hashCode</a></code>在类
<code><a href="../../../../java/lang/Object.html" title="class in java.lang">Object</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
该对象的哈希码值。
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../../../java/lang/Object.html#equals-java.lang.Object-"><code>Object.equals(java.lang.Object)</code></a> ，
<a href="../../../../java/lang/System.html#identityHashCode-java.lang.Object-"><code>System.identityHashCode(java.lang.Object)</code></a>
</dd>
</dl> </li>
</ul> <a name="clone--">
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<ul class="blockListLast">
<li class="blockList"> <h4>clone</h4> <pre>public <a href="../../../../java/lang/Object.html" title="class in java.lang">Object</a> clone()</pre>
<div class="block">
<span>返回此<code>SerialClob</code>的克隆。</span>
<span>该副本将包含对内部字符数组的克隆的引用，而不是对此<code>SerialClob</code>对象的原始内部字符数组的引用。</span>
<span>底层的<code>Clob</code>对象将被设置为null。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../../../java/lang/Object.html#clone--">clone</a></code>在类别
<code><a href="../../../../java/lang/Object.html" title="class in java.lang">Object</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
该SerialClob的克隆
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../../../java/lang/Cloneable.html" title="java.lang中的接口"><code>Cloneable</code></a></span>
</dd>
</dl> </li>
</ul> </li>
</ul> </li>
</ul>
</div>
</div>
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