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<!-- Generated by javadoc (1.8.0_151) on Tue Oct 31 17:36:46 EDT 2017 -->
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<title>DbLoad (Oracle - Berkeley DB Java Edition API)</title>
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<div class="aboutLanguage"><b>Berkeley DB Java Edition</b><br><font size=\"-1\"> version 7.5.11</font>
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<div class="header">
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<div class="subTitle">com.sleepycat.je.util</div>
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<h2 title="Class DbLoad" class="title">Class DbLoad</h2>
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<div class="contentContainer">
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<ul class="inheritance">
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<li>java.lang.Object</li>
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<li>
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<ul class="inheritance">
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<li>com.sleepycat.je.util.DbLoad</li>
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<br>
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<pre>public class <span class="typeNameLabel">DbLoad</span>
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extends java.lang.Object</pre>
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<div class="block">Loads a database from a dump file generated by <a href="../../../../com/sleepycat/je/util/DbDump.html" title="class in com.sleepycat.je.util"><code>DbDump</code></a>.
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This utility may be used programmatically or from the command line.
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<p>When using this utility as a command line program, and the
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application uses custom key comparators, be sure to add the jars or
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classes to the classpath that contain the application's comparator
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classes.</p>
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<pre>
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java { com.sleepycat.je.util.DbLoad |
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-jar je-<version>.jar DbLoad }
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-h <dir> # environment home directory
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[-f <fileName>] # input file
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[-n] # no overwrite mode
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[-T] # input file is in text mode
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[-I] # ignore unknown parameters
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[-c name=value] # config values
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[-s <databaseName> ] # database to load
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[-v] # show progress
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[-V] # print JE version number
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</pre>
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See <a href="../../../../com/sleepycat/je/util/DbLoad.html#main-java.lang.String:A-"><code>main(java.lang.String[])</code></a> for a full description of the
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command line arguments.
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<p>
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To load a database to a stream from code:
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<pre>
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DbLoad loader = new DbLoad();
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loader.setEnv(env);
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loader.setDbName(dbName);
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loader.setInputStream(stream);
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loader.setNoOverwrite(noOvrwr);
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loader.setTextFileMode(tfm);
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loader.load();
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</pre>
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<p>Because a <code>DATA=END</code> marker is used to terminate the dump of
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each database, multiple databases can be dumped and loaded using a single
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stream. The <a href="../../../../com/sleepycat/je/util/DbDump.html#dump--"><code>DbDump.dump()</code></a> method leaves the stream positioned after
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the last line written and the <a href="../../../../com/sleepycat/je/util/DbLoad.html#load--"><code>load()</code></a> method leaves the stream
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positioned after the last line read.</p></div>
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<h3>Field Summary</h3>
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<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation">
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<caption><span>Fields</span><span class="tabEnd"> </span></caption>
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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="../../../../com/sleepycat/je/Environment.html" title="class in com.sleepycat.je">Environment</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/je/util/DbLoad.html#env">env</a></span></code> </td>
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</tr>
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<h3>Constructor Summary</h3>
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<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
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<caption><span>Constructors</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/je/util/DbLoad.html#DbLoad--">DbLoad</a></span>()</code>
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<div class="block">Creates a DbLoad object.</div>
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</td>
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</tr>
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</table>
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<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption>
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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 id="i0" class="altColor">
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<td class="colFirst"><code>boolean</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/je/util/DbLoad.html#load--">load</a></span>()</code> </td>
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</tr>
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<tr id="i1" class="rowColor">
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<td class="colFirst"><code>static void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/je/util/DbLoad.html#main-java.lang.String:A-">main</a></span>(java.lang.String[] argv)</code>
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<div class="block">The main used by the DbLoad utility.</div>
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</td>
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</tr>
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<tr id="i2" class="altColor">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/je/util/DbLoad.html#setDbName-java.lang.String-">setDbName</a></span>(java.lang.String dbName)</code>
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<div class="block">Sets the database name to load.</div>
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</td>
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</tr>
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<tr id="i3" class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/je/util/DbLoad.html#setEnv-com.sleepycat.je.Environment-">setEnv</a></span>(<a href="../../../../com/sleepycat/je/Environment.html" title="class in com.sleepycat.je">Environment</a> env)</code>
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<div class="block">Sets the Environment to load from.</div>
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</td>
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</tr>
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<tr id="i4" class="altColor">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/je/util/DbLoad.html#setIgnoreUnknownConfig-boolean-">setIgnoreUnknownConfig</a></span>(boolean ignoreUnknownConfigMode)</code>
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<div class="block">Sets whether to ignore unknown parameters in the config file.</div>
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</td>
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</tr>
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<tr id="i5" class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/je/util/DbLoad.html#setInputReader-java.io.BufferedReader-">setInputReader</a></span>(java.io.BufferedReader reader)</code>
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<div class="block">Sets the BufferedReader to load from.</div>
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</td>
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</tr>
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<tr id="i6" class="altColor">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/je/util/DbLoad.html#setNoOverwrite-boolean-">setNoOverwrite</a></span>(boolean noOverwrite)</code>
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<div class="block">Sets whether the load should overwrite existing data or not.</div>
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</td>
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</tr>
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<tr id="i7" class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/je/util/DbLoad.html#setProgressInterval-long-">setProgressInterval</a></span>(long progressInterval)</code>
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<div class="block">If progressInterval is set, progress status messages are generated to
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stdout at set percentages of the load.</div>
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</td>
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</tr>
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<tr id="i8" class="altColor">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/je/util/DbLoad.html#setTextFileMode-boolean-">setTextFileMode</a></span>(boolean textFileMode)</code>
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<div class="block">Sets whether the load data is in text file format.</div>
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</td>
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</tr>
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<tr id="i9" class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/je/util/DbLoad.html#setTotalLoadBytes-long-">setTotalLoadBytes</a></span>(long totalLoadBytes)</code>
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<div class="block">Used for progress status messages.</div>
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</td>
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</tr>
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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>
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<h3>Methods inherited from class java.lang.Object</h3>
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<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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</ul>
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</li>
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</ul>
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</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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<li class="blockList"><a name="field.detail">
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</a>
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<h3>Field Detail</h3>
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<a name="env">
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</a>
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<ul class="blockListLast">
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<li class="blockList">
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<h4>env</h4>
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<pre>protected <a href="../../../../com/sleepycat/je/Environment.html" title="class in com.sleepycat.je">Environment</a> env</pre>
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</li>
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</ul>
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</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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<!-- -->
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</a>
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<h3>Constructor Detail</h3>
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<a name="DbLoad--">
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</a>
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<h4>DbLoad</h4>
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<pre>public DbLoad()</pre>
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<div class="block">Creates a DbLoad object.</div>
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</li>
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</ul>
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</li>
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</ul>
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<ul class="blockList">
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<li class="blockList"><a name="method.detail">
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</a>
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<h3>Method Detail</h3>
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<a name="main-java.lang.String:A-">
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<h4>main</h4>
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<pre>public static void main(java.lang.String[] argv)
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throws java.lang.Exception</pre>
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<div class="block">The main used by the DbLoad utility.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>argv</code> - The arguments accepted by the DbLoad utility.
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<pre>
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usage: java { com.sleepycat.je.util.DbLoad | -jar
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||
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je-<version>.jar DbLoad }
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[-f input-file] [-n] [-V] [-v] [-T] [-I]
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[-c name=value]
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[-s database] -h dbEnvHome
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</pre>
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<p>-f - the file to load from (in DbDump format)<br>
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-n - no overwrite mode. Do not overwrite existing data.<br>
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-V - display the version of the JE library.<br>
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-T - input file is in Text mode.<br>
|
||
|
-I - ignore unknown parameters in the config file.<br></p>
|
||
|
|
||
|
<p>If -f is not specified, the dump is read from System.in.</p>
|
||
|
|
||
|
<p>The -T option allows JE applications to easily load text files into
|
||
|
databases.</p>
|
||
|
|
||
|
<p>The -I option allows loading databases that were dumped with the
|
||
|
Berkeley DB C product, when the dump file contains parameters not known
|
||
|
to JE.</p>
|
||
|
|
||
|
<p>The input must be paired lines of text, where the first line of the
|
||
|
pair is the key item, and the second line of the pair is its
|
||
|
corresponding data item.</p>
|
||
|
|
||
|
<p>A simple escape mechanism, where newline and backslash (\) characters
|
||
|
are special, is applied to the text input. Newline characters are
|
||
|
interpreted as record separators. Backslash characters in the text will
|
||
|
be interpreted in one of two ways: If the backslash character precedes
|
||
|
another backslash character, the pair will be interpreted as a literal
|
||
|
backslash. If the backslash character precedes any other character, the
|
||
|
two characters following the backslash will be interpreted as a
|
||
|
hexadecimal specification of a single character; for example, \0a is a
|
||
|
newline character in the ASCII character set.</p>
|
||
|
|
||
|
<p>For this reason, any backslash or newline characters that naturally
|
||
|
occur in the text input must be escaped to avoid misinterpretation by
|
||
|
db_load.</p>
|
||
|
|
||
|
<p>-c name=value - Specify configuration options ignoring any value they
|
||
|
may have based on the input. The command-line format is name=value. See
|
||
|
the Supported Keywords section below for a list of keywords supported by
|
||
|
the -c option.</p>
|
||
|
|
||
|
<p>-s database - the database to load.<br>
|
||
|
-h dbEnvHome - the directory containing the database environment.<br>
|
||
|
-v - report progress <br></p>
|
||
|
|
||
|
<p>Supported Keywords<br>
|
||
|
version=N - specify the version of the input file. Currently only
|
||
|
version 3 is supported.<br>
|
||
|
format - specify the format of the file. Allowable values are "print"
|
||
|
and "bytevalue".<br>
|
||
|
dupsort - specify whether the database allows duplicates or not.
|
||
|
Allowable values are "true" and "false".<br>
|
||
|
type - specifies the type of database. Only "btree" is allowed.<br>
|
||
|
database - specifies the name of the database to be loaded.<br></p></dd>
|
||
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
||
|
<dd><code><a href="../../../../com/sleepycat/je/EnvironmentFailureException.html" title="class in com.sleepycat.je">EnvironmentFailureException</a></code> - if an unexpected, internal or
|
||
|
environment-wide failure occurs.</dd>
|
||
|
<dd><code>java.lang.Exception</code></dd>
|
||
|
</dl>
|
||
|
</li>
|
||
|
</ul>
|
||
|
<a name="setEnv-com.sleepycat.je.Environment-">
|
||
|
<!-- -->
|
||
|
</a>
|
||
|
<ul class="blockList">
|
||
|
<li class="blockList">
|
||
|
<h4>setEnv</h4>
|
||
|
<pre>public void setEnv(<a href="../../../../com/sleepycat/je/Environment.html" title="class in com.sleepycat.je">Environment</a> env)</pre>
|
||
|
<div class="block">Sets the Environment to load from.</div>
|
||
|
<dl>
|
||
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
||
|
<dd><code>env</code> - The environment.</dd>
|
||
|
</dl>
|
||
|
</li>
|
||
|
</ul>
|
||
|
<a name="setDbName-java.lang.String-">
|
||
|
<!-- -->
|
||
|
</a>
|
||
|
<ul class="blockList">
|
||
|
<li class="blockList">
|
||
|
<h4>setDbName</h4>
|
||
|
<pre>public void setDbName(java.lang.String dbName)</pre>
|
||
|
<div class="block">Sets the database name to load.</div>
|
||
|
<dl>
|
||
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
||
|
<dd><code>dbName</code> - database name</dd>
|
||
|
</dl>
|
||
|
</li>
|
||
|
</ul>
|
||
|
<a name="setInputReader-java.io.BufferedReader-">
|
||
|
<!-- -->
|
||
|
</a>
|
||
|
<ul class="blockList">
|
||
|
<li class="blockList">
|
||
|
<h4>setInputReader</h4>
|
||
|
<pre>public void setInputReader(java.io.BufferedReader reader)</pre>
|
||
|
<div class="block">Sets the BufferedReader to load from.</div>
|
||
|
<dl>
|
||
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
||
|
<dd><code>reader</code> - The BufferedReader.</dd>
|
||
|
</dl>
|
||
|
</li>
|
||
|
</ul>
|
||
|
<a name="setNoOverwrite-boolean-">
|
||
|
<!-- -->
|
||
|
</a>
|
||
|
<ul class="blockList">
|
||
|
<li class="blockList">
|
||
|
<h4>setNoOverwrite</h4>
|
||
|
<pre>public void setNoOverwrite(boolean noOverwrite)</pre>
|
||
|
<div class="block">Sets whether the load should overwrite existing data or not.</div>
|
||
|
<dl>
|
||
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
||
|
<dd><code>noOverwrite</code> - True if existing data should not be overwritten.</dd>
|
||
|
</dl>
|
||
|
</li>
|
||
|
</ul>
|
||
|
<a name="setTextFileMode-boolean-">
|
||
|
<!-- -->
|
||
|
</a>
|
||
|
<ul class="blockList">
|
||
|
<li class="blockList">
|
||
|
<h4>setTextFileMode</h4>
|
||
|
<pre>public void setTextFileMode(boolean textFileMode)</pre>
|
||
|
<div class="block">Sets whether the load data is in text file format.</div>
|
||
|
<dl>
|
||
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
||
|
<dd><code>textFileMode</code> - True if the load data is in text file format.</dd>
|
||
|
</dl>
|
||
|
</li>
|
||
|
</ul>
|
||
|
<a name="setIgnoreUnknownConfig-boolean-">
|
||
|
<!-- -->
|
||
|
</a>
|
||
|
<ul class="blockList">
|
||
|
<li class="blockList">
|
||
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<h4>setIgnoreUnknownConfig</h4>
|
||
|
<pre>public void setIgnoreUnknownConfig(boolean ignoreUnknownConfigMode)</pre>
|
||
|
<div class="block">Sets whether to ignore unknown parameters in the config file. This
|
||
|
allows loading databases that were dumped with the Berkeley DB C
|
||
|
product, when the dump file contains parameters not known to JE.</div>
|
||
|
<dl>
|
||
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
||
|
<dd><code>ignoreUnknownConfigMode</code> - True to ignore unknown parameters in
|
||
|
the config file.</dd>
|
||
|
</dl>
|
||
|
</li>
|
||
|
</ul>
|
||
|
<a name="setProgressInterval-long-">
|
||
|
<!-- -->
|
||
|
</a>
|
||
|
<ul class="blockList">
|
||
|
<li class="blockList">
|
||
|
<h4>setProgressInterval</h4>
|
||
|
<pre>public void setProgressInterval(long progressInterval)</pre>
|
||
|
<div class="block">If progressInterval is set, progress status messages are generated to
|
||
|
stdout at set percentages of the load.</div>
|
||
|
<dl>
|
||
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
||
|
<dd><code>progressInterval</code> - Specifies the percentage intervals for status
|
||
|
messages. If 0, no messages are generated.</dd>
|
||
|
</dl>
|
||
|
</li>
|
||
|
</ul>
|
||
|
<a name="setTotalLoadBytes-long-">
|
||
|
<!-- -->
|
||
|
</a>
|
||
|
<ul class="blockList">
|
||
|
<li class="blockList">
|
||
|
<h4>setTotalLoadBytes</h4>
|
||
|
<pre>public void setTotalLoadBytes(long totalLoadBytes)</pre>
|
||
|
<div class="block">Used for progress status messages. Must be set to greater than
|
||
|
0 if the progressInterval is greater than 0.</div>
|
||
|
<dl>
|
||
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
||
|
<dd><code>totalLoadBytes</code> - number of input bytes to be loaded.</dd>
|
||
|
</dl>
|
||
|
</li>
|
||
|
</ul>
|
||
|
<a name="load--">
|
||
|
<!-- -->
|
||
|
</a>
|
||
|
<ul class="blockListLast">
|
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|
<li class="blockList">
|
||
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<h4>load</h4>
|
||
|
<pre>public boolean load()
|
||
|
throws java.io.IOException,
|
||
|
<a href="../../../../com/sleepycat/je/DatabaseException.html" title="class in com.sleepycat.je">DatabaseException</a></pre>
|
||
|
<dl>
|
||
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
||
|
<dd><code>java.io.IOException</code></dd>
|
||
|
<dd><code><a href="../../../../com/sleepycat/je/DatabaseException.html" title="class in com.sleepycat.je">DatabaseException</a></code></dd>
|
||
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</dl>
|
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</li>
|
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</ul>
|
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</li>
|
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</ul>
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</li>
|
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</ul>
|
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</div>
|
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</div>
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<div class="aboutLanguage"><b>Berkeley DB Java Edition</b><br><font size=\"-1\"> version 7.5.11</font>
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