uTools-Manuals/docs/java/javax/sql/RowSetWriter.html

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     compact2, compact3 
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     javax.sql 
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<h2 class="title" title="Interface RowSetWriter">Interface RowSetWriter</h2>
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         All Known Subinterfaces: 
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<span><a href="../../javax/sql/rowset/spi/TransactionalWriter.html" title="javax.sql.rowset.spi中的接口">TransactionalWriter</a> ， <a href="../../javax/sql/rowset/spi/XmlWriter.html" title="javax.sql.rowset.spi中的接口">XmlWriter</a></span>
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<hr/> <br/> <pre>public interface <span class="typeNameLabel">RowSetWriter</span></pre>
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<span>一个实现<code>RowSetWriter</code>接口的对象，称为<i>写入器</i> 。</span>
<span>作者可以向支持读写器范例的<code>RowSet</code>对象注册。</span>
<p> <span>如果断开连接的<code>RowSet</code>对象修改其某些数据，并且它具有与之关联的写入器，则可以实现它，以便内部调用写入器的<code>writeData</code>方法将更新写回到数据源。</span> <span>为了做到这一点，作者必须首先建立与行集数据源的连接。</span> </p>
<p> <span>如果要更新的数据已经在数据源中被更改，则会有冲突，在这种情况下，写入程序不会将更改写入数据源。</span> <span>作者用于预防或限制冲突的算法完全取决于其实现。</span> </p>
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<span class="simpleTagLabel">从以下版本开始：</span>
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         1.4 
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/sql/RowSetWriter.html#writeData-javax.sql.RowSetInternal-">writeData</a></span>(<a href="../../javax/sql/RowSetInternal.html" title="interface in javax.sql">RowSetInternal</a> caller)</code>
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              将此 
             <code>RowSetWriter</code>对象的行集中的更改写回数据源，从中获取其数据。 
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<li class="blockList"> <h4>writeData</h4> <pre>boolean writeData(<a href="../../javax/sql/RowSetInternal.html" title="interface in javax.sql">RowSetInternal</a> caller)
           throws <a href="../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></pre>
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            将此 
           <code>RowSetWriter</code>对象的行集中的更改写回数据源，从中获取其数据。 
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<span class="paramLabel">参数</span>
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<code>caller</code> -所述 
            <code>RowSet</code>对象（1），其已经实现了 
            <code>RowSetInternal</code>接口，（2）与此写入器被注册，和（3）调用此方法在内部 
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<span class="returnLabel">结果</span>
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<span><code>true</code>如果修改后的数据被写入;</span>
<span><code>false</code>如果没有，如果有冲突的话会是这样</span>
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<span class="throwsLabel">异常</span>
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<code><a href="../../java/sql/SQLException.html" title="class in java.sql">SQLException</a></code> - 如果发生数据库访问错误 
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