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<div class="subTitle">org.apache.tools.ant.taskdefs</div>
<h2 title="Class Checksum" class="title">Class Checksum</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li><a href="../../../../../org/apache/tools/ant/ProjectComponent.html" title="class in org.apache.tools.ant">org.apache.tools.ant.ProjectComponent</a></li>
<li>
<ul class="inheritance">
<li><a href="../../../../../org/apache/tools/ant/Task.html" title="class in org.apache.tools.ant">org.apache.tools.ant.Task</a></li>
<li>
<ul class="inheritance">
<li><a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html" title="class in org.apache.tools.ant.taskdefs">org.apache.tools.ant.taskdefs.MatchingTask</a></li>
<li>
<ul class="inheritance">
<li>org.apache.tools.ant.taskdefs.Checksum</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
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</li>
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<div class="description">
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<dl>
<dt>All Implemented Interfaces:</dt>
<dd>java.lang.Cloneable, <a href="../../../../../org/apache/tools/ant/taskdefs/condition/Condition.html" title="interface in org.apache.tools.ant.taskdefs.condition">Condition</a>, <a href="../../../../../org/apache/tools/ant/types/selectors/SelectorContainer.html" title="interface in org.apache.tools.ant.types.selectors">SelectorContainer</a></dd>
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<pre>public class <span class="strong">Checksum</span>
extends <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html" title="class in org.apache.tools.ant.taskdefs">MatchingTask</a>
implements <a href="../../../../../org/apache/tools/ant/taskdefs/condition/Condition.html" title="interface in org.apache.tools.ant.taskdefs.condition">Condition</a></pre>
<div class="block">Used to create or verify file checksums.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>Ant 1.5</dd></dl>
</li>
</ul>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class </code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.FormatElement.html" title="class in org.apache.tools.ant.taskdefs">Checksum.FormatElement</a></strong></code>
<div class="block">Helper class for the format attribute.</div>
</td>
</tr>
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<h3>Fields inherited from class org.apache.tools.ant.taskdefs.<a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html" title="class in org.apache.tools.ant.taskdefs">MatchingTask</a></h3>
<code><a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#fileset">fileset</a></code></li>
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<h3>Fields inherited from class org.apache.tools.ant.<a href="../../../../../org/apache/tools/ant/Task.html" title="class in org.apache.tools.ant">Task</a></h3>
<code><a href="../../../../../org/apache/tools/ant/Task.html#target">target</a>, <a href="../../../../../org/apache/tools/ant/Task.html#taskName">taskName</a>, <a href="../../../../../org/apache/tools/ant/Task.html#taskType">taskType</a>, <a href="../../../../../org/apache/tools/ant/Task.html#wrapper">wrapper</a></code></li>
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<h3>Fields inherited from class org.apache.tools.ant.<a href="../../../../../org/apache/tools/ant/ProjectComponent.html" title="class in org.apache.tools.ant">ProjectComponent</a></h3>
<code><a href="../../../../../org/apache/tools/ant/ProjectComponent.html#description">description</a>, <a href="../../../../../org/apache/tools/ant/ProjectComponent.html#location">location</a>, <a href="../../../../../org/apache/tools/ant/ProjectComponent.html#project">project</a></code></li>
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<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#Checksum()">Checksum</a></strong>()</code> </td>
</tr>
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<caption><span>Methods</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#add(org.apache.tools.ant.types.ResourceCollection)">add</a></strong>(<a href="../../../../../org/apache/tools/ant/types/ResourceCollection.html" title="interface in org.apache.tools.ant.types">ResourceCollection</a> rc)</code>
<div class="block">Add a resource collection.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#addFileset(org.apache.tools.ant.types.FileSet)">addFileset</a></strong>(<a href="../../../../../org/apache/tools/ant/types/FileSet.html" title="class in org.apache.tools.ant.types">FileSet</a> set)</code>
<div class="block">Files to generate checksums for.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static byte[]</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#decodeHex(char[])">decodeHex</a></strong>(char[] data)</code>
<div class="block">Converts an array of characters representing hexadecimal values into an
array of bytes of those same values.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#eval()">eval</a></strong>()</code>
<div class="block">Calculate the checksum(s)</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#execute()">execute</a></strong>()</code>
<div class="block">Calculate the checksum(s).</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#setAlgorithm(java.lang.String)">setAlgorithm</a></strong>(java.lang.String algorithm)</code>
<div class="block">Specifies the algorithm to be used to compute the checksum.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#setFile(java.io.File)">setFile</a></strong>(java.io.File file)</code>
<div class="block">Sets the file for which the checksum is to be calculated.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#setFileext(java.lang.String)">setFileext</a></strong>(java.lang.String fileext)</code>
<div class="block">Sets the file extension that is be to used to
create or identify destination file.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#setForceOverwrite(boolean)">setForceOverwrite</a></strong>(boolean forceOverwrite)</code>
<div class="block">Whether or not to overwrite existing file irrespective of
whether it is newer than
the source file.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#setFormat(org.apache.tools.ant.taskdefs.Checksum.FormatElement)">setFormat</a></strong>(<a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.FormatElement.html" title="class in org.apache.tools.ant.taskdefs">Checksum.FormatElement</a> e)</code>
<div class="block">Select the in/output pattern via a well know format name.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#setPattern(java.lang.String)">setPattern</a></strong>(java.lang.String p)</code>
<div class="block">Specify the pattern to use as a MessageFormat pattern.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#setProperty(java.lang.String)">setProperty</a></strong>(java.lang.String property)</code>
<div class="block">Sets the property to hold the generated checksum.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#setProvider(java.lang.String)">setProvider</a></strong>(java.lang.String provider)</code>
<div class="block">Sets the MessageDigest algorithm provider to be used
to calculate the checksum.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#setReadBufferSize(int)">setReadBufferSize</a></strong>(int size)</code>
<div class="block">The size of the read buffer to use.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#setTodir(java.io.File)">setTodir</a></strong>(java.io.File todir)</code>
<div class="block">Sets the root directory where checksum files will be
written/read</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#setTotalproperty(java.lang.String)">setTotalproperty</a></strong>(java.lang.String totalproperty)</code>
<div class="block">Sets the property to hold the generated total checksum
for all files.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.html#setVerifyproperty(java.lang.String)">setVerifyproperty</a></strong>(java.lang.String verifyProperty)</code>
<div class="block">Sets the verify property.</div>
</td>
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<h3>Methods inherited from class org.apache.tools.ant.taskdefs.<a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html" title="class in org.apache.tools.ant.taskdefs">MatchingTask</a></h3>
<code><a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#add(org.apache.tools.ant.types.selectors.FileSelector)">add</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addAnd(org.apache.tools.ant.types.selectors.AndSelector)">addAnd</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addContains(org.apache.tools.ant.types.selectors.ContainsSelector)">addContains</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addContainsRegexp(org.apache.tools.ant.types.selectors.ContainsRegexpSelector)">addContainsRegexp</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addCustom(org.apache.tools.ant.types.selectors.ExtendSelector)">addCustom</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addDate(org.apache.tools.ant.types.selectors.DateSelector)">addDate</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addDepend(org.apache.tools.ant.types.selectors.DependSelector)">addDepend</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addDepth(org.apache.tools.ant.types.selectors.DepthSelector)">addDepth</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addDifferent(org.apache.tools.ant.types.selectors.DifferentSelector)">addDifferent</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addFilename(org.apache.tools.ant.types.selectors.FilenameSelector)">addFilename</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addMajority(org.apache.tools.ant.types.selectors.MajoritySelector)">addMajority</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addModified(org.apache.tools.ant.types.selectors.modifiedselector.ModifiedSelector)">addModified</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addNone(org.apache.tools.ant.types.selectors.NoneSelector)">addNone</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addNot(org.apache.tools.ant.types.selectors.NotSelector)">addNot</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addOr(org.apache.tools.ant.types.selectors.OrSelector)">addOr</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addPresent(org.apache.tools.ant.types.selectors.PresentSelector)">addPresent</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addSelector(org.apache.tools.ant.types.selectors.SelectSelector)">addSelector</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addSize(org.apache.tools.ant.types.selectors.SizeSelector)">addSize</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#addType(org.apache.tools.ant.types.selectors.TypeSelector)">addType</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#appendSelector(org.apache.tools.ant.types.selectors.FileSelector)">appendSelector</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#createExclude()">createExclude</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#createExcludesFile()">createExcludesFile</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#createInclude()">createInclude</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#createIncludesFile()">createIncludesFile</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#createPatternSet()">createPatternSet</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#getDirectoryScanner(java.io.File)">getDirectoryScanner</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#getImplicitFileSet()">getImplicitFileSet</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#getSelectors(org.apache.tools.ant.Project)">getSelectors</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#hasSelectors()">hasSelectors</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#selectorCount()">selectorCount</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#selectorElements()">selectorElements</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#setCaseSensitive(boolean)">setCaseSensitive</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#setDefaultexcludes(boolean)">setDefaultexcludes</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#setExcludes(java.lang.String)">setExcludes</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#setExcludesfile(java.io.File)">setExcludesfile</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#setFollowSymlinks(boolean)">setFollowSymlinks</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#setIncludes(java.lang.String)">setIncludes</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#setIncludesfile(java.io.File)">setIncludesfile</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#setProject(org.apache.tools.ant.Project)">setProject</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#XsetIgnore(java.lang.String)">XsetIgnore</a>, <a href="../../../../../org/apache/tools/ant/taskdefs/MatchingTask.html#XsetItems(java.lang.String)">XsetItems</a></code></li>
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<h3>Methods inherited from class org.apache.tools.ant.<a href="../../../../../org/apache/tools/ant/Task.html" title="class in org.apache.tools.ant">Task</a></h3>
<code><a href="../../../../../org/apache/tools/ant/Task.html#bindToOwner(org.apache.tools.ant.Task)">bindToOwner</a>, <a href="../../../../../org/apache/tools/ant/Task.html#getOwningTarget()">getOwningTarget</a>, <a href="../../../../../org/apache/tools/ant/Task.html#getRuntimeConfigurableWrapper()">getRuntimeConfigurableWrapper</a>, <a href="../../../../../org/apache/tools/ant/Task.html#getTaskName()">getTaskName</a>, <a href="../../../../../org/apache/tools/ant/Task.html#getTaskType()">getTaskType</a>, <a href="../../../../../org/apache/tools/ant/Task.html#getWrapper()">getWrapper</a>, <a href="../../../../../org/apache/tools/ant/Task.html#handleErrorFlush(java.lang.String)">handleErrorFlush</a>, <a href="../../../../../org/apache/tools/ant/Task.html#handleErrorOutput(java.lang.String)">handleErrorOutput</a>, <a href="../../../../../org/apache/tools/ant/Task.html#handleFlush(java.lang.String)">handleFlush</a>, <a href="../../../../../org/apache/tools/ant/Task.html#handleInput(byte[], int, int)">handleInput</a>, <a href="../../../../../org/apache/tools/ant/Task.html#handleOutput(java.lang.String)">handleOutput</a>, <a href="../../../../../org/apache/tools/ant/Task.html#init()">init</a>, <a href="../../../../../org/apache/tools/ant/Task.html#isInvalid()">isInvalid</a>, <a href="../../../../../org/apache/tools/ant/Task.html#log(java.lang.String)">log</a>, <a href="../../../../../org/apache/tools/ant/Task.html#log(java.lang.String, int)">log</a>, <a href="../../../../../org/apache/tools/ant/Task.html#log(java.lang.String, java.lang.Throwable, int)">log</a>, <a href="../../../../../org/apache/tools/ant/Task.html#log(java.lang.Throwable, int)">log</a>, <a href="../../../../../org/apache/tools/ant/Task.html#maybeConfigure()">maybeConfigure</a>, <a href="../../../../../org/apache/tools/ant/Task.html#perform()">perform</a>, <a href="../../../../../org/apache/tools/ant/Task.html#reconfigure()">reconfigure</a>, <a href="../../../../../org/apache/tools/ant/Task.html#setOwningTarget(org.apache.tools.ant.Target)">setOwningTarget</a>, <a href="../../../../../org/apache/tools/ant/Task.html#setRuntimeConfigurableWrapper(org.apache.tools.ant.RuntimeConfigurable)">setRuntimeConfigurableWrapper</a>, <a href="../../../../../org/apache/tools/ant/Task.html#setTaskName(java.lang.String)">setTaskName</a>, <a href="../../../../../org/apache/tools/ant/Task.html#setTaskType(java.lang.String)">setTaskType</a></code></li>
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<h3>Methods inherited from class org.apache.tools.ant.<a href="../../../../../org/apache/tools/ant/ProjectComponent.html" title="class in org.apache.tools.ant">ProjectComponent</a></h3>
<code><a href="../../../../../org/apache/tools/ant/ProjectComponent.html#clone()">clone</a>, <a href="../../../../../org/apache/tools/ant/ProjectComponent.html#getDescription()">getDescription</a>, <a href="../../../../../org/apache/tools/ant/ProjectComponent.html#getLocation()">getLocation</a>, <a href="../../../../../org/apache/tools/ant/ProjectComponent.html#getProject()">getProject</a>, <a href="../../../../../org/apache/tools/ant/ProjectComponent.html#setDescription(java.lang.String)">setDescription</a>, <a href="../../../../../org/apache/tools/ant/ProjectComponent.html#setLocation(org.apache.tools.ant.Location)">setLocation</a></code></li>
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<h3>Methods inherited from class java.lang.Object</h3>
<code>equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h3>Constructor Detail</h3>
<a name="Checksum()">
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<h4>Checksum</h4>
<pre>public Checksum()</pre>
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<a name="setFile(java.io.File)">
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<h4>setFile</h4>
<pre>public void setFile(java.io.File file)</pre>
<div class="block">Sets the file for which the checksum is to be calculated.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>file</code> - a <code>File</code> value</dd></dl>
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<h4>setTodir</h4>
<pre>public void setTodir(java.io.File todir)</pre>
<div class="block">Sets the root directory where checksum files will be
written/read</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>todir</code> - the directory to write to</dd><dt><span class="strong">Since:</span></dt>
<dd>Ant 1.6</dd></dl>
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<h4>setAlgorithm</h4>
<pre>public void setAlgorithm(java.lang.String algorithm)</pre>
<div class="block">Specifies the algorithm to be used to compute the checksum.
Defaults to "MD5". Other popular algorithms like "SHA" may be used as well.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>algorithm</code> - a <code>String</code> value</dd></dl>
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<h4>setProvider</h4>
<pre>public void setProvider(java.lang.String provider)</pre>
<div class="block">Sets the MessageDigest algorithm provider to be used
to calculate the checksum.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>provider</code> - a <code>String</code> value</dd></dl>
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<pre>public void setFileext(java.lang.String fileext)</pre>
<div class="block">Sets the file extension that is be to used to
create or identify destination file.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>fileext</code> - a <code>String</code> value</dd></dl>
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<h4>setProperty</h4>
<pre>public void setProperty(java.lang.String property)</pre>
<div class="block">Sets the property to hold the generated checksum.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>property</code> - a <code>String</code> value</dd></dl>
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<h4>setTotalproperty</h4>
<pre>public void setTotalproperty(java.lang.String totalproperty)</pre>
<div class="block">Sets the property to hold the generated total checksum
for all files.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>totalproperty</code> - a <code>String</code> value</dd><dt><span class="strong">Since:</span></dt>
<dd>Ant 1.6</dd></dl>
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<h4>setVerifyproperty</h4>
<pre>public void setVerifyproperty(java.lang.String verifyProperty)</pre>
<div class="block">Sets the verify property. This project property holds
the result of a checksum verification - "true" or "false"</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>verifyProperty</code> - a <code>String</code> value</dd></dl>
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<h4>setForceOverwrite</h4>
<pre>public void setForceOverwrite(boolean forceOverwrite)</pre>
<div class="block">Whether or not to overwrite existing file irrespective of
whether it is newer than
the source file. Defaults to false.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>forceOverwrite</code> - a <code>boolean</code> value</dd></dl>
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<h4>setReadBufferSize</h4>
<pre>public void setReadBufferSize(int size)</pre>
<div class="block">The size of the read buffer to use.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>size</code> - an <code>int</code> value</dd></dl>
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<h4>setFormat</h4>
<pre>public void setFormat(<a href="../../../../../org/apache/tools/ant/taskdefs/Checksum.FormatElement.html" title="class in org.apache.tools.ant.taskdefs">Checksum.FormatElement</a> e)</pre>
<div class="block">Select the in/output pattern via a well know format name.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>e</code> - an <code>enumerated</code> value</dd><dt><span class="strong">Since:</span></dt>
<dd>1.7.0</dd></dl>
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<h4>setPattern</h4>
<pre>public void setPattern(java.lang.String p)</pre>
<div class="block">Specify the pattern to use as a MessageFormat pattern.
<p>{0} gets replaced by the checksum, {1} by the filename.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>p</code> - a <code>String</code> value</dd><dt><span class="strong">Since:</span></dt>
<dd>1.7.0</dd></dl>
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<h4>addFileset</h4>
<pre>public void addFileset(<a href="../../../../../org/apache/tools/ant/types/FileSet.html" title="class in org.apache.tools.ant.types">FileSet</a> set)</pre>
<div class="block">Files to generate checksums for.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>set</code> - a fileset of files to generate checksums for.</dd></dl>
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<h4>add</h4>
<pre>public void add(<a href="../../../../../org/apache/tools/ant/types/ResourceCollection.html" title="interface in org.apache.tools.ant.types">ResourceCollection</a> rc)</pre>
<div class="block">Add a resource collection.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>rc</code> - the ResourceCollection to add.</dd></dl>
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<h4>execute</h4>
<pre>public void execute()
throws <a href="../../../../../org/apache/tools/ant/BuildException.html" title="class in org.apache.tools.ant">BuildException</a></pre>
<div class="block">Calculate the checksum(s).</div>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/tools/ant/Task.html#execute()">execute</a></code> in class <code><a href="../../../../../org/apache/tools/ant/Task.html" title="class in org.apache.tools.ant">Task</a></code></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/tools/ant/BuildException.html" title="class in org.apache.tools.ant">BuildException</a></code> - on error</dd></dl>
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<h4>eval</h4>
<pre>public boolean eval()
throws <a href="../../../../../org/apache/tools/ant/BuildException.html" title="class in org.apache.tools.ant">BuildException</a></pre>
<div class="block">Calculate the checksum(s)</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/tools/ant/taskdefs/condition/Condition.html#eval()">eval</a></code> in interface <code><a href="../../../../../org/apache/tools/ant/taskdefs/condition/Condition.html" title="interface in org.apache.tools.ant.taskdefs.condition">Condition</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>Returns true if the checksum verification test passed,
false otherwise.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/tools/ant/BuildException.html" title="class in org.apache.tools.ant">BuildException</a></code> - on error</dd></dl>
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<h4>decodeHex</h4>
<pre>public static byte[] decodeHex(char[] data)
throws <a href="../../../../../org/apache/tools/ant/BuildException.html" title="class in org.apache.tools.ant">BuildException</a></pre>
<div class="block">Converts an array of characters representing hexadecimal values into an
array of bytes of those same values. The returned array will be half the
length of the passed array, as it takes two characters to represent any
given byte. An exception is thrown if the passed char array has an odd
number of elements.
NOTE: This code is copied from jakarta-commons codec.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>data</code> - an array of characters representing hexadecimal values</dd>
<dt><span class="strong">Returns:</span></dt><dd>the converted array of bytes</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/tools/ant/BuildException.html" title="class in org.apache.tools.ant">BuildException</a></code> - on error</dd></dl>
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