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395 lines
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395 lines
19 KiB
HTML
<div class="header">
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<div class="subTitle">
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javax.imageio.spi
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</div>
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<h2 class="title" title="Class IIOServiceProvider">Class IIOServiceProvider</h2>
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</div><div class="contentContainer">
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<ul class="inheritance">
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<li><a href="../../../java/lang/Object.html" title="class in java.lang">java.lang.Object</a></li>
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<li>
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<ul class="inheritance">
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<li>javax.imageio.spi.IIOServiceProvider</li>
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</ul> </li>
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</ul>
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<div class="description">
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<ul class="blockList">
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<dl>
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<dt>
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All Implemented Interfaces:
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</dt>
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<dd>
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<span><a href="../../../javax/imageio/spi/RegisterableService.html" title="javax.imageio.spi中的接口">RegisterableService</a></span>
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</dd>
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</dl>
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<dl>
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<dt>
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已知直接子类：
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</dt>
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<dd>
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<span><a href="../../../javax/imageio/spi/ImageInputStreamSpi.html" title="javax.imageio.spi中的类">ImageInputStreamSpi</a> ， <a href="../../../javax/imageio/spi/ImageOutputStreamSpi.html" title="javax.imageio.spi中的类">ImageOutputStreamSpi</a> ， <a href="../../../javax/imageio/spi/ImageReaderWriterSpi.html" title="javax.imageio.spi中的类">ImageReaderWriterSpi</a> ， <a href="../../../javax/imageio/spi/ImageTranscoderSpi.html" title="javax.imageio.spi中的类">ImageTranscoderSpi</a></span>
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</dd>
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</dl>
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<hr/> <br/> <pre>public abstract class <span class="typeNameLabel">IIOServiceProvider</span>
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extends <a href="../../../java/lang/Object.html" title="class in java.lang">Object</a>
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implements <a href="../../../javax/imageio/spi/RegisterableService.html" title="interface in javax.imageio.spi">RegisterableService</a></pre>
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<div class="block">
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<span>所有Image I / O服务提供商接口（SPI）通用功能的超级界面。</span>
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<span>有关服务提供程序类的更多信息，请参阅<code>IIORegistry</code>类的类注释。</span>
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</div>
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<dl>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<span><a href="../../../javax/imageio/spi/IIORegistry.html" title="javax.imageio.spi中的类"><code>IIORegistry</code></a> ， <a href="../../../javax/imageio/spi/ImageReaderSpi.html" title="javax.imageio.spi中的类"><code>ImageReaderSpi</code></a> ， <a href="../../../javax/imageio/spi/ImageWriterSpi.html" title="javax.imageio.spi中的类"><code>ImageWriterSpi</code></a> ， <a href="../../../javax/imageio/spi/ImageTranscoderSpi.html" title="javax.imageio.spi中的类"><code>ImageTranscoderSpi</code></a> ， <a href="../../../javax/imageio/spi/ImageInputStreamSpi.html" title="javax.imageio.spi中的类"><code>ImageInputStreamSpi</code></a></span>
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</dd>
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</dl> </li>
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</ul>
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</div>
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<div class="summary">
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<!-- =========== FIELD SUMMARY =========== -->
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<li class="blockList"><a name="field.summary">
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<!-- --> </a> <h3>Field Summary</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Field Summary table, listing fields, and an explanation">
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<caption>
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<span>Fields</span>
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<span class="tabEnd"> </span>
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</caption>
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<tbody>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Field and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>protected <a href="../../../java/lang/String.html" title="class in java.lang">String</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/imageio/spi/IIOServiceProvider.html#vendorName">vendorName</a></span></code>
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<div class="block">
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A
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<code>String</code>将从
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<code>getVendorName</code>返回，最初为
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<code>null</code> 。
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</div> </td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>protected <a href="../../../java/lang/String.html" title="class in java.lang">String</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/imageio/spi/IIOServiceProvider.html#version">version</a></span></code>
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<div class="block">
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A
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<code>String</code>从
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<code>getVersion</code>返回，最初为null。
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</div> </td>
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</tr>
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</tbody>
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</table> </li>
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</ul>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<ul class="blockList">
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<li class="blockList"><a name="constructor.summary">
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<!-- --> </a> <h3>构造方法摘要</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Constructor Summary table, listing constructors, and an explanation">
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<caption>
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<span>构造方法</span>
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<span class="tabEnd"> </span>
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</caption>
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<tbody>
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<tr>
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<th class="colOne" scope="col">Constructor and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../javax/imageio/spi/IIOServiceProvider.html#IIOServiceProvider--">IIOServiceProvider</a></span>()</code>
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<div class="block">
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构造一个空白
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<code>IIOServiceProvider</code> 。
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</div> </td>
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</tr>
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<tr class="rowColor">
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../javax/imageio/spi/IIOServiceProvider.html#IIOServiceProvider-java.lang.String-java.lang.String-">IIOServiceProvider</a></span>(<a href="../../../java/lang/String.html" title="class in java.lang">String</a> vendorName, <a href="../../../java/lang/String.html" title="class in java.lang">String</a> version)</code>
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<div class="block">
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构造一个
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<code>IIOServiceProvider</code>具有给定供应商名称和版本标识符。
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</div> </td>
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</tr>
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</tbody>
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</table> </li>
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</ul>
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<!-- ========== METHOD SUMMARY =========== -->
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<ul class="blockList">
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<li class="blockList"><a name="method.summary">
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<!-- --> </a> <h3>方法摘要</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
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<caption>
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<span class="activeTableTab" id="t0"><span>所有方法</span><span class="tabEnd"> </span></span>
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<span class="tableTab" id="t2"><span><a href="javascript:show(2);">接口方法</a></span><span class="tabEnd"> </span></span>
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<span class="tableTab" id="t3"><span><a href="javascript:show(4);">抽象方法</a></span><span class="tabEnd"> </span></span>
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<span class="tableTab" id="t4"><span><a href="javascript:show(8);">具体的方法</a></span><span class="tabEnd"> </span></span>
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</caption>
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<tbody>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Method and Description</th>
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</tr>
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<tr class="altColor" id="i0">
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<td class="colFirst"><code>abstract <a href="../../../java/lang/String.html" title="class in java.lang">String</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/imageio/spi/IIOServiceProvider.html#getDescription-java.util.Locale-">getDescription</a></span>(<a href="../../../java/util/Locale.html" title="class in java.util">Locale</a> locale)</code>
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<div class="block">
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返回此服务提供商及其相关实现的简短可读的描述。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i1">
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<td class="colFirst"><code><a href="../../../java/lang/String.html" title="class in java.lang">String</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/imageio/spi/IIOServiceProvider.html#getVendorName--">getVendorName</a></span>()</code>
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<div class="block">
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返回负责创建此服务提供商及其关联实施的供应商的名称。
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</div> </td>
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</tr>
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<tr class="altColor" id="i2">
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<td class="colFirst"><code><a href="../../../java/lang/String.html" title="class in java.lang">String</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/imageio/spi/IIOServiceProvider.html#getVersion--">getVersion</a></span>()</code>
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<div class="block">
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返回描述此服务提供商及其关联实现的版本号的字符串。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i3">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/imageio/spi/IIOServiceProvider.html#onDeregistration-javax.imageio.spi.ServiceRegistry-java.lang.Class-">onDeregistration</a></span>(<a href="../../../javax/imageio/spi/ServiceRegistry.html" title="class in javax.imageio.spi">ServiceRegistry</a> registry, <a href="../../../java/lang/Class.html" title="class in java.lang">类</a><?> category)</code>
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<div class="block">
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每当Spi课程从
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<code>ServiceRegistry</code>时，这个回调将是。
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</div> </td>
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</tr>
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<tr class="altColor" id="i4">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/imageio/spi/IIOServiceProvider.html#onRegistration-javax.imageio.spi.ServiceRegistry-java.lang.Class-">onRegistration</a></span>(<a href="../../../javax/imageio/spi/ServiceRegistry.html" title="class in javax.imageio.spi">ServiceRegistry</a> registry, <a href="../../../java/lang/Class.html" title="class in java.lang">类</a><?> category)</code>
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<div class="block">
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一个回调，在Spi类被实例化并在ServiceRegistry中
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<code>ServiceRegistry</code>后，将被调用一次。
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</div> </td>
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</tr>
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</tbody>
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</table>
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<ul class="blockList">
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<li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
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<!-- --> </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#clone--">clone</a>, <a href="../../../java/lang/Object.html#equals-java.lang.Object-">equals</a>, <a href="../../../java/lang/Object.html#finalize--">finalize</a>, <a href="../../../java/lang/Object.html#getClass--">getClass</a>, <a href="../../../java/lang/Object.html#hashCode--">hashCode</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>
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</ul> </li>
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</ul> </li>
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</ul>
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</div>
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<div class="details">
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<ul class="blockList">
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<li class="blockList">
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<!-- ============ FIELD DETAIL =========== -->
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<ul class="blockList">
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<li class="blockList"><a name="field.detail">
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<!-- --> </a> <h3>字段详细信息</h3> <a name="vendorName">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>vendorName</h4> <pre>protected <a href="../../../java/lang/String.html" title="class in java.lang">String</a> vendorName</pre>
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<div class="block">
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<span>A <code>String</code>将从<code>getVendorName</code>返回，最初为<code>null</code> 。</span>
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<span>构造函数应将其设置为非<code>null</code>值。</span>
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</div> </li>
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</ul> <a name="version">
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<!-- --> </a>
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<ul class="blockListLast">
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<li class="blockList"> <h4>version</h4> <pre>protected <a href="../../../java/lang/String.html" title="class in java.lang">String</a> version</pre>
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<div class="block">
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<span>A <code>String</code>从<code>getVersion</code>返回，最初为null。</span>
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<span>构造函数应将其设置为非<code>null</code>值。</span>
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</div> </li>
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</ul> </li>
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</ul>
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<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<ul class="blockList">
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<li class="blockList"><a name="constructor.detail">
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<!-- --> </a> <h3>构造方法详细信息</h3> <a name="IIOServiceProvider-java.lang.String-java.lang.String-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>IIOServiceProvider</h4> <pre>public IIOServiceProvider(<a href="../../../java/lang/String.html" title="class in java.lang">String</a> vendorName,
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<a href="../../../java/lang/String.html" title="class in java.lang">String</a> version)</pre>
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<div class="block">
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构造一个
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<code>IIOServiceProvider</code>具有给定供应商名称和版本标识符。
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</div>
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<dl>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>vendorName</code> - 供应商名称。
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</dd>
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<dd>
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<code>version</code> - 版本标识符。
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</dd>
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<dt>
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<span class="throwsLabel">异常</span>
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</dt>
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<dd>
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<code><a href="../../../java/lang/IllegalArgumentException.html" title="class in java.lang">IllegalArgumentException</a></code> - 如果
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<code>vendorName</code>是
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<code>null</code> 。
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</dd>
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<dd>
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<code><a href="../../../java/lang/IllegalArgumentException.html" title="class in java.lang">IllegalArgumentException</a></code> - 如果
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<code>version</code>是
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<code>null</code> 。
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</dd>
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</dl> </li>
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</ul> <a name="IIOServiceProvider--">
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<!-- --> </a>
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<ul class="blockListLast">
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<li class="blockList"> <h4>IIOServiceProvider</h4> <pre>public IIOServiceProvider()</pre>
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<div class="block">
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<span>构造一个空白<code>IIOServiceProvider</code> 。</span>
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<span>为了确保<code>getVendorName</code>和<code>getVersion</code>方法将返回非<code>null</code>值，由子类初始化实例变量和/或覆盖方法实现。</span>
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</div> </li>
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</ul> </li>
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</ul>
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<!-- ============ METHOD DETAIL ========== -->
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<ul class="blockList">
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<li class="blockList"><a name="method.detail">
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<!-- --> </a> <h3>方法详细信息</h3> <a name="onRegistration-javax.imageio.spi.ServiceRegistry-java.lang.Class-">
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<ul class="blockList">
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<li class="blockList"> <h4>onRegistration</h4> <pre>public void onRegistration(<a href="../../../javax/imageio/spi/ServiceRegistry.html" title="class in javax.imageio.spi">ServiceRegistry</a> registry,
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<a href="../../../java/lang/Class.html" title="class in java.lang">类</a><?> category)</pre>
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<div class="block">
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<span>一个回调，在Spi类已经被实例化并注册到<code>ServiceRegistry</code>之后将被调用一次。</span>
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<span>这可以用于验证环境是否适合此服务，例如可以加载本机库。</span>
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<span>如果服务在找到自己的环境中无法运行，则应该从注册表中注销自身。</span>
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<p> <span>只有注册表应该调用这个方法。</span> </p>
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<p> <span>默认实现什么都不做。</span> </p>
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</div>
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<dl>
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<dt>
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<span class="overrideSpecifyLabel">Specified by:</span>
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</dt>
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<dd>
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<code><a href="../../../javax/imageio/spi/RegisterableService.html#onRegistration-javax.imageio.spi.ServiceRegistry-java.lang.Class-">onRegistration</a></code>中的
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<code><a href="../../../javax/imageio/spi/RegisterableService.html" title="interface in javax.imageio.spi">RegisterableService</a></code>
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</dd>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>registry</code> - 一个
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<code>ServiceRegistry</code>其中该对象已被注册。
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</dd>
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<dd>
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<code>category</code> - 一个
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<code>类</code>此对象已注册的注册表类别的
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<code>类</code>对象。
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</dd>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../../javax/imageio/spi/ServiceRegistry.html#registerServiceProvider-java.lang.Object-"><code>ServiceRegistry.registerServiceProvider(Object provider)</code></a>
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</dd>
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</dl> </li>
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</ul> <a name="onDeregistration-javax.imageio.spi.ServiceRegistry-java.lang.Class-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>onDeregistration</h4> <pre>public void onDeregistration(<a href="../../../javax/imageio/spi/ServiceRegistry.html" title="class in javax.imageio.spi">ServiceRegistry</a> registry,
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<a href="../../../java/lang/Class.html" title="class in java.lang">类</a><?> category)</pre>
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<div class="block">
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<span>每当Spi课程从<code>ServiceRegistry</code>时，将会回调。</span>
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<p> <span>只有注册表应该调用这个方法。</span> </p>
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<p> <span>默认实现什么都不做。</span> </p>
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</div>
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<dl>
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<dt>
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<span class="overrideSpecifyLabel">Specified by:</span>
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</dt>
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<dd>
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<code><a href="../../../javax/imageio/spi/RegisterableService.html#onDeregistration-javax.imageio.spi.ServiceRegistry-java.lang.Class-">onDeregistration</a></code>在接口
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<code><a href="../../../javax/imageio/spi/RegisterableService.html" title="interface in javax.imageio.spi">RegisterableService</a></code>
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</dd>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>registry</code> -
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<code>ServiceRegistry</code>从该对象（全部或部分）注销。
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</dd>
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<dd>
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<code>category</code> - 一个
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<code>类</code>对象，指示该对象正在注销的注册表类别。
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</dd>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../../javax/imageio/spi/ServiceRegistry.html#deregisterServiceProvider-java.lang.Object-"><code>ServiceRegistry.deregisterServiceProvider(Object provider)</code></a>
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</dd>
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</dl> </li>
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</ul> <a name="getVendorName--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getVendorName</h4> <pre>public <a href="../../../java/lang/String.html" title="class in java.lang">String</a> getVendorName()</pre>
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<div class="block">
|
||
<span>返回负责创建此服务提供商及其关联实施的供应商的名称。</span>
|
||
<span>由于供应商名称可能用于选择服务提供商，因此它不会本地化。</span>
|
||
<p> <span>默认实现返回<code>vendorName</code>实例变量的值。</span> </p>
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
一个非
|
||
<code>null</code>
|
||
<code>String</code>包含供应商的名称。
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="getVersion--">
|
||
<!-- --> </a>
|
||
<ul class="blockList">
|
||
<li class="blockList"> <h4>getVersion</h4> <pre>public <a href="../../../java/lang/String.html" title="class in java.lang">String</a> getVersion()</pre>
|
||
<div class="block">
|
||
<span>返回描述此服务提供商及其关联实现的版本号的字符串。</span>
|
||
<span>由于代码转换器可能会使用该版本来识别他们所理解的服务提供商，因此此方法不进行本地化。</span>
|
||
<p> <span>默认实现返回值为<code>version</code>实例变量。</span> </p>
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
一个非
|
||
<code>null</code>
|
||
<code>String</code>包含该服务提供商的版本。
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="getDescription-java.util.Locale-">
|
||
<!-- --> </a>
|
||
<ul class="blockListLast">
|
||
<li class="blockList"> <h4>getDescription</h4> <pre>public abstract <a href="../../../java/lang/String.html" title="class in java.lang">String</a> getDescription(<a href="../../../java/util/Locale.html" title="class in java.util">Locale</a> locale)</pre>
|
||
<div class="block">
|
||
<span>返回此服务提供商及其相关实现的简短可读的描述。</span>
|
||
<span>如果可能的话，最终的字符串应该被本地化为所提供的<code>Locale</code> 。</span>
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="paramLabel">参数</span>
|
||
</dt>
|
||
<dd>
|
||
<code>locale</code> - 一个
|
||
<code>Locale</code> ，返回值应该对其进行本地化。
|
||
</dd>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
一个
|
||
<code>String</code>包含该服务提供商的描述。
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> </li>
|
||
</ul> </li>
|
||
</ul>
|
||
</div>
|
||
</div> |