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<meta name="keywords" content="getTemplate()">
<meta name="keywords" content="templateName()">
<meta name="keywords" content="getField()">
<meta name="keywords" content="getFields()">
<meta name="keywords" content="getOffset()">
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<div class="sub-title"><span class="module-label-in-type">Module</span>&nbsp;<a href="../../../../../../../module-summary.html">openj9.dtfj</a></div>
<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">com.ibm.j9ddr.corereaders.tdump.zebedee.util</a></div>
<h1 title="Class Template" class="title">Class Template</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">java.lang.Object</a>
<div class="inheritance">com.ibm.j9ddr.corereaders.tdump.zebedee.util.Template</div>
</div>
<section class="description">
<hr>
<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">Template</span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a></span></div>
<div class="block">This class represents a single template as defined in a template xml file. A template
defines the layout of storage in memory (similar to a C struct) and the purpose of templates
is to define for each field, the name, offset in bytes, length, type, description etc.
The template classes have no dependencies on any of the other Zebedee classes and
so may be reused for other purposes. All it requires is that the user supplies an implementation
of <a href="http://java.sun.com/j2se/1.4.2/docs/api/javax/imageio/stream/ImageInputStream.html">ImageInputStream</a>
so that the template classes can obtain the data for the fields in each structure.
<p>
The DTD for the XML description of a template type can be found <a href="templatedtd.html">here</a> (in pretty
html format) or <a href="templatedtd.dtd">here</a> (in raw form). The XML is always verified and the first line
must contain the following DTD declaration: <b>&lt;!DOCTYPE type SYSTEM "file://template.dtd"&gt;</b>
(the reference to template.dtd is automatically intercepted).
<p>
Templates are created using the factory method getTemplate rather than being instantiated directly so only
one persistent instance is created for a given name.</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method.summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab1', 3)" class="table-tab">Static Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
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<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="TemplateField.html" title="class in com.ibm.j9ddr.corereaders.tdump.zebedee.util">TemplateField</a></code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getField(java.lang.String)">getField</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a>&nbsp;name)</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Returns the TemplateField with the given name.</div>
</div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link" target="_blank">List</a></code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getFields()">getFields</a></span>()</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Returns a <code>List</code> of the fields in the Template in their original order.</div>
</div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>int</code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getOffset(java.lang.String)">getOffset</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a>&nbsp;fieldName)</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Returns the offset in bytes of the specified field within the template.</div>
</div>
<div class="col-first odd-row-color method-summary-table-tab1 method-summary-table-tab4 method-summary-table"><code>static <a href="Template.html" title="class in com.ibm.j9ddr.corereaders.tdump.zebedee.util">Template</a></code></div>
<div class="col-second odd-row-color method-summary-table-tab1 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getTemplate(java.lang.String)">getTemplate</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a>&nbsp;templateFileName)</code></div>
<div class="col-last odd-row-color method-summary-table-tab1 method-summary-table-tab4 method-summary-table">
<div class="block">Create a new Template from the given template file.</div>
</div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>int</code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#length()">length</a></span>()</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Returns the length in bytes of this template</div>
</div>
<div class="col-first odd-row-color method-summary-table-tab1 method-summary-table-tab4 method-summary-table"><code>static void</code></div>
<div class="col-second odd-row-color method-summary-table-tab1 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#main(java.lang.String%5B%5D)">main</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a>[]&nbsp;args)</code></div>
<div class="col-last odd-row-color method-summary-table-tab1 method-summary-table-tab4 method-summary-table">
<div class="block">This method is mainly for regression testing.</div>
</div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a></code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#templateName()">templateName</a></span>()</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Returns the name of this template as specified by the top level element</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods.inherited.from.class.java.lang.Object">Methods declared in class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link" target="_blank">clone</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link" target="_blank">equals</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link" target="_blank">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link" target="_blank">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link" target="_blank">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link" target="_blank">notify</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link" target="_blank">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link" target="_blank">toString</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link" target="_blank">wait</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method.detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="getTemplate(java.lang.String)">
<h3>getTemplate</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="Template.html" title="class in com.ibm.j9ddr.corereaders.tdump.zebedee.util">Template</a></span>&nbsp;<span class="element-name">getTemplate</span>&#8203;<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a>&nbsp;templateFileName)</span>
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/FileNotFoundException.html" title="class or interface in java.io" class="external-link" target="_blank">FileNotFoundException</a>,
<a href="InvalidTemplateFile.html" title="class in com.ibm.j9ddr.corereaders.tdump.zebedee.util">InvalidTemplateFile</a></span></div>
<div class="block">Create a new Template from the given template file.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>templateFileName</code> - the name of the template file. This can be relative or
absolute and must include the ".xml" (if any). getResourceAsStream is used to locate
the xml file so absolute pathnames are actually relative to this class's classpath.</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/FileNotFoundException.html" title="class or interface in java.io" class="external-link" target="_blank">FileNotFoundException</a></code> - if the xml file could not be found</dd>
<dd><code><a href="InvalidTemplateFile.html" title="class in com.ibm.j9ddr.corereaders.tdump.zebedee.util">InvalidTemplateFile</a></code> - if the xml is invalid in any way</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="templateName()">
<h3>templateName</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a></span>&nbsp;<span class="element-name">templateName</span>()</div>
<div class="block">Returns the name of this template as specified by the top level element</div>
</section>
</li>
<li>
<section class="detail" id="getField(java.lang.String)">
<h3>getField</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="TemplateField.html" title="class in com.ibm.j9ddr.corereaders.tdump.zebedee.util">TemplateField</a></span>&nbsp;<span class="element-name">getField</span>&#8203;<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a>&nbsp;name)</span>
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/NoSuchFieldException.html" title="class or interface in java.lang" class="external-link" target="_blank">NoSuchFieldException</a></span></div>
<div class="block">Returns the TemplateField with the given name.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>name</code> - the name of the field</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/NoSuchFieldException.html" title="class or interface in java.lang" class="external-link" target="_blank">NoSuchFieldException</a></code> - if there is no field with the given name</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getFields()">
<h3>getFields</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link" target="_blank">List</a></span>&nbsp;<span class="element-name">getFields</span>()</div>
<div class="block">Returns a <code>List</code> of the fields in the Template in their original order.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>list the <code>List</code> of fields</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getOffset(java.lang.String)">
<h3>getOffset</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">getOffset</span>&#8203;<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a>&nbsp;fieldName)</span>
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/NoSuchFieldException.html" title="class or interface in java.lang" class="external-link" target="_blank">NoSuchFieldException</a></span></div>
<div class="block">Returns the offset in bytes of the specified field within the template.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>fieldName</code> - the name of the field</dd>
<dt>Returns:</dt>
<dd>the offset of the field</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/NoSuchFieldException.html" title="class or interface in java.lang" class="external-link" target="_blank">NoSuchFieldException</a></code> - if there is no field with the given name</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="length()">
<h3>length</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">length</span>()</div>
<div class="block">Returns the length in bytes of this template</div>
</section>
</li>
<li>
<section class="detail" id="main(java.lang.String[])">
<h3>main</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">main</span>&#8203;<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a>[]&nbsp;args)</span></div>
<div class="block">This method is mainly for regression testing. It prints a text version of the given
template files just containing the field name, offset and length. It's much easier to
do a diff on this format than the xml which I tend to fiddle with quite a lot!</div>
</section>
</li>
</ul>
</section>
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