carlos.garcia
/
praktikum-holons


			
				
					
						
						
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<div class="subTitle">org.apache.commons.compress.archivers.sevenz</div>
<h2 title="Class SevenZFile" class="title">Class SevenZFile</h2>
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<ul class="inheritance">
<li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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<li>org.apache.commons.compress.archivers.sevenz.SevenZFile</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="http://docs.oracle.com/javase/7/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a></dd>
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<pre>public class <a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.73">SevenZFile</a>
extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="http://docs.oracle.com/javase/7/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a></pre>
<div class="block">Reads a 7z file, using SeekableByteChannel under
 the covers.
 <p>
 The 7z file format is a flexible container
 that can contain many compression and
 encryption types, but at the moment only
 only Copy, LZMA, LZMA2, BZIP2, Deflate and AES-256 + SHA-256
 are supported.
 <p>
 The format is very Windows/Intel specific,
 so it uses little-endian byte order,
 doesn't store user/group or permission bits,
 and represents times using NTFS timestamps
 (100 nanosecond units since 1 January 1601).
 Hence the official tools recommend against
 using it for backup purposes on *nix, and
 recommend .tar.7z or .tar.lzma or .tar.xz
 instead.
 <p>
 Both the header and file contents may be
 compressed and/or encrypted. With both
 encrypted, neither file names nor file
 contents can be read, but the use of
 encryption isn't plausibly deniable.</div>
<dl><dt><span class="strong">Since:</span></dt>
  <dd>1.6</dd>
<dt><span class="strong">This class is not thread-safe</span></dt>
  <dd></dd></dl>
</li>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#SevenZFile(java.io.File)">SevenZFile</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</a>&nbsp;filename)</code>
<div class="block">Reads a file as unencrypted 7z archive</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#SevenZFile(java.io.File,%20byte[])">SevenZFile</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</a>&nbsp;filename,
                    byte[]&nbsp;password)</code>
<div class="block">Reads a file as 7z archive</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#SevenZFile(java.nio.channels.SeekableByteChannel)">SevenZFile</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/channels/SeekableByteChannel.html?is-external=true" title="class or interface in java.nio.channels">SeekableByteChannel</a>&nbsp;channel)</code>
<div class="block">Reads a SeekableByteChannel as 7z archive

 <a href="../../../../../../org/apache/commons/compress/utils/SeekableInMemoryByteChannel.html" title="class in org.apache.commons.compress.utils"><code>SeekableInMemoryByteChannel</code></a>
 allows you to read from an in-memory archive.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#SevenZFile(java.nio.channels.SeekableByteChannel,%20byte[])">SevenZFile</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/channels/SeekableByteChannel.html?is-external=true" title="class or interface in java.nio.channels">SeekableByteChannel</a>&nbsp;channel,
                    byte[]&nbsp;password)</code>
<div class="block">Reads a SeekableByteChannel as 7z archive

 <a href="../../../../../../org/apache/commons/compress/utils/SeekableInMemoryByteChannel.html" title="class in org.apache.commons.compress.utils"><code>SeekableInMemoryByteChannel</code></a>
 allows you to read from an in-memory archive.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#SevenZFile(java.nio.channels.SeekableByteChannel,%20java.lang.String,%20byte[])">SevenZFile</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/channels/SeekableByteChannel.html?is-external=true" title="class or interface in java.nio.channels">SeekableByteChannel</a>&nbsp;channel,
                    <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;filename,
                    byte[]&nbsp;password)</code>
<div class="block">Reads a SeekableByteChannel as 7z archive

 <a href="../../../../../../org/apache/commons/compress/utils/SeekableInMemoryByteChannel.html" title="class in org.apache.commons.compress.utils"><code>SeekableInMemoryByteChannel</code></a>
 allows you to read from an in-memory archive.</div>
</td>
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<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#close()">close</a></strong>()</code>
<div class="block">Closes the archive.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a>&lt;<a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZArchiveEntry.html" title="class in org.apache.commons.compress.archivers.sevenz">SevenZArchiveEntry</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#getEntries()">getEntries</a></strong>()</code>
<div class="block">Returns meta-data of all archive entries.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZArchiveEntry.html" title="class in org.apache.commons.compress.archivers.sevenz">SevenZArchiveEntry</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#getNextEntry()">getNextEntry</a></strong>()</code>
<div class="block">Returns the next Archive Entry in this archive.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#matches(byte[],%20int)">matches</a></strong>(byte[]&nbsp;signature,
              int&nbsp;length)</code>
<div class="block">Checks if the signature matches what is expected for a 7z file.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#read()">read</a></strong>()</code>
<div class="block">Reads a byte of data.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#read(byte[])">read</a></strong>(byte[]&nbsp;b)</code>
<div class="block">Reads data into an array of bytes.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#read(byte[],%20int,%20int)">read</a></strong>(byte[]&nbsp;b,
        int&nbsp;off,
        int&nbsp;len)</code>
<div class="block">Reads data into an array of bytes.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#toString()">toString</a></strong>()</code>&nbsp;</td>
</tr>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li>
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<h3>Constructor Detail</h3>
<a name="SevenZFile(java.io.File, byte[])">
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<h4>SevenZFile</h4>
<pre>public&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.100">SevenZFile</a>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</a>&nbsp;filename,
          byte[]&nbsp;password)
           throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Reads a file as 7z archive</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>filename</code> - the file to read</dd><dd><code>password</code> - optional password if the archive is encrypted -
 the byte array is supposed to be the UTF16-LE encoded
 representation of the password.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if reading the archive fails</dd></dl>
</li>
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<a name="SevenZFile(java.nio.channels.SeekableByteChannel)">
<!--   -->
</a>
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<h4>SevenZFile</h4>
<pre>public&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.116">SevenZFile</a>(<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/channels/SeekableByteChannel.html?is-external=true" title="class or interface in java.nio.channels">SeekableByteChannel</a>&nbsp;channel)
           throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Reads a SeekableByteChannel as 7z archive

 <p><a href="../../../../../../org/apache/commons/compress/utils/SeekableInMemoryByteChannel.html" title="class in org.apache.commons.compress.utils"><code>SeekableInMemoryByteChannel</code></a>
 allows you to read from an in-memory archive.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>channel</code> - the channel to read</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if reading the archive fails</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.13</dd></dl>
</li>
</ul>
<a name="SevenZFile(java.nio.channels.SeekableByteChannel, byte[])">
<!--   -->
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<h4>SevenZFile</h4>
<pre>public&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.134">SevenZFile</a>(<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/channels/SeekableByteChannel.html?is-external=true" title="class or interface in java.nio.channels">SeekableByteChannel</a>&nbsp;channel,
          byte[]&nbsp;password)
           throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Reads a SeekableByteChannel as 7z archive

 <p><a href="../../../../../../org/apache/commons/compress/utils/SeekableInMemoryByteChannel.html" title="class in org.apache.commons.compress.utils"><code>SeekableInMemoryByteChannel</code></a>
 allows you to read from an in-memory archive.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>channel</code> - the channel to read</dd><dd><code>password</code> - optional password if the archive is encrypted -
 the byte array is supposed to be the UTF16-LE encoded
 representation of the password.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if reading the archive fails</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.13</dd></dl>
</li>
</ul>
<a name="SevenZFile(java.nio.channels.SeekableByteChannel, java.lang.String, byte[])">
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<h4>SevenZFile</h4>
<pre>public&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.154">SevenZFile</a>(<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/channels/SeekableByteChannel.html?is-external=true" title="class or interface in java.nio.channels">SeekableByteChannel</a>&nbsp;channel,
          <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;filename,
          byte[]&nbsp;password)
           throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Reads a SeekableByteChannel as 7z archive

 <p><a href="../../../../../../org/apache/commons/compress/utils/SeekableInMemoryByteChannel.html" title="class in org.apache.commons.compress.utils"><code>SeekableInMemoryByteChannel</code></a>
 allows you to read from an in-memory archive.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>channel</code> - the channel to read</dd><dd><code>filename</code> - name of the archive - only used for error reporting</dd><dd><code>password</code> - optional password if the archive is encrypted -
 the byte array is supposed to be the UTF16-LE encoded
 representation of the password.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if reading the archive fails</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.13</dd></dl>
</li>
</ul>
<a name="SevenZFile(java.io.File)">
<!--   -->
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<h4>SevenZFile</h4>
<pre>public&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.186">SevenZFile</a>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</a>&nbsp;filename)
           throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Reads a file as unencrypted 7z archive</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>filename</code> - the file to read</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if reading the archive fails</dd></dl>
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<h3>Method Detail</h3>
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<h4>close</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.195">close</a>()
           throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Closes the archive.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/Closeable.html?is-external=true#close()" title="class or interface in java.io">close</a></code>&nbsp;in interface&nbsp;<code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a></code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/AutoCloseable.html?is-external=true#close()" title="class or interface in java.lang">close</a></code>&nbsp;in interface&nbsp;<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a></code></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if closing the file fails</dd></dl>
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<h4>getNextEntry</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZArchiveEntry.html" title="class in org.apache.commons.compress.archivers.sevenz">SevenZArchiveEntry</a>&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.216">getNextEntry</a>()
                                throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Returns the next Archive Entry in this archive.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the next entry,
         or <code>null</code> if there are no more entries</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if the next entry could not be read</dd></dl>
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<pre>public&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a>&lt;<a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZArchiveEntry.html" title="class in org.apache.commons.compress.archivers.sevenz">SevenZArchiveEntry</a>&gt;&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.239">getEntries</a>()</pre>
<div class="block">Returns meta-data of all archive entries.

 <p>This method only provides meta-data, the entries can not be
 used to read the contents, you still need to process all
 entries in order using <a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#getNextEntry()"><code>getNextEntry()</code></a> for that.</p>

 <p>The content methods are only available for entries that have
 already been reached via <a href="../../../../../../org/apache/commons/compress/archivers/sevenz/SevenZFile.html#getNextEntry()"><code>getNextEntry()</code></a>.</p></div>
<dl><dt><span class="strong">Returns:</span></dt><dd>meta-data of all archive entries.</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.11</dd></dl>
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<h4>read</h4>
<pre>public&nbsp;int&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.953">read</a>()
         throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Reads a byte of data.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the byte read, or -1 if end of input is reached</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if an I/O error has occurred</dd></dl>
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<pre>public&nbsp;int&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.985">read</a>(byte[]&nbsp;b)
         throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Reads data into an array of bytes.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>b</code> - the array to write data to</dd>
<dt><span class="strong">Returns:</span></dt><dd>the number of bytes read, or -1 if end of input is reached</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if an I/O error has occurred</dd></dl>
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<pre>public&nbsp;int&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.999">read</a>(byte[]&nbsp;b,
       int&nbsp;off,
       int&nbsp;len)
         throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Reads data into an array of bytes.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>b</code> - the array to write data to</dd><dd><code>off</code> - offset into the buffer to start filling at</dd><dd><code>len</code> - of bytes to read</dd>
<dt><span class="strong">Returns:</span></dt><dd>the number of bytes read, or -1 if end of input is reached</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if an I/O error has occurred</dd></dl>
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<h4>matches</h4>
<pre>public static&nbsp;boolean&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.1033">matches</a>(byte[]&nbsp;signature,
              int&nbsp;length)</pre>
<div class="block">Checks if the signature matches what is expected for a 7z file.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>signature</code> - the bytes to check</dd><dd><code>length</code> - the number of bytes to check</dd>
<dt><span class="strong">Returns:</span></dt><dd>true, if this is the signature of a 7z archive.</dd><dt><span class="strong">Since:</span></dt>
  <dd>1.8</dd></dl>
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<h4>toString</h4>
<pre>public&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/archivers/sevenz/SevenZFile.html#line.1066">toString</a>()</pre>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a></code>&nbsp;in class&nbsp;<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
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