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Yasuhiro KIMURA
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<div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">com.sleepycat.persist</a></div>
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<h2 title="Interface ForwardCursor" class="title">Interface ForwardCursor<V></h2>
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<dt>All Superinterfaces:</dt>
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<dd><code>java.lang.Iterable<V></code></dd>
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<dl>
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<dt>All Known Subinterfaces:</dt>
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<dd><code><a href="EntityCursor.html" title="interface in com.sleepycat.persist">EntityCursor</a><V></code></dd>
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</dl>
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<hr>
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<pre>public interface <span class="typeNameLabel">ForwardCursor<V></span>
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extends java.lang.Iterable<V></pre>
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<div class="block">Cursor operations limited to traversing forward. See <a href="EntityCursor.html" title="interface in com.sleepycat.persist"><code>EntityCursor</code></a>
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for general information on cursors.
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<p><code>ForwardCursor</code> objects are <em>not</em> thread-safe. Cursors
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should be opened, used and closed by a single thread.</p>
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<p><em>WARNING:</em> Cursors must always be closed to prevent resource leaks
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which could lead to the index becoming unusable or cause an
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<code>OutOfMemoryError</code>. To ensure that a cursor is closed in the
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face of exceptions, close it in a finally block.</p></div>
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<h3>Method Summary</h3>
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<table class="memberSummary" 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="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract 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="colSecond" scope="col">Method</th>
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<th class="colLast" scope="col">Description</th>
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</tr>
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<tr id="i0" class="altColor">
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<td class="colFirst"><code>void</code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#close--">close</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Closes the cursor.</div>
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</td>
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</tr>
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<tr id="i1" class="rowColor">
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<td class="colFirst"><code>java.util.Iterator<<a href="ForwardCursor.html" title="type parameter in ForwardCursor">V</a>></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#iterator--">iterator</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Returns an iterator over the key range, starting with the value
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following the current position or at the first value if the cursor is
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uninitialized.</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>java.util.Iterator<<a href="ForwardCursor.html" title="type parameter in ForwardCursor">V</a>></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#iterator-com.sleepycat.db.LockMode-">iterator</a></span>​(<a href="../db/LockMode.html" title="class in com.sleepycat.db">LockMode</a> lockMode)</code></th>
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<td class="colLast">
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<div class="block">Returns an iterator over the key range, starting with the value
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following the current position or at the first value if the cursor is
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uninitialized.</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><a href="ForwardCursor.html" title="type parameter in ForwardCursor">V</a></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#next--">next</a></span>()</code></th>
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<td class="colLast">
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<div class="block">Moves the cursor to the next value and returns it, or returns null
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if there are no more values in the cursor range.</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><a href="ForwardCursor.html" title="type parameter in ForwardCursor">V</a></code></td>
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<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#next-com.sleepycat.db.LockMode-">next</a></span>​(<a href="../db/LockMode.html" title="class in com.sleepycat.db">LockMode</a> lockMode)</code></th>
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<td class="colLast">
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<div class="block">Moves the cursor to the next value and returns it, or returns null
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if there are no more values in the cursor range.</div>
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</td>
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</tr>
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</table>
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</a>
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<h3>Methods inherited from interface java.lang.Iterable</h3>
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<code>forEach, spliterator</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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<!-- ============ METHOD DETAIL ========== -->
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<a name="next--">
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<h4>next</h4>
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<pre class="methodSignature"><a href="ForwardCursor.html" title="type parameter in ForwardCursor">V</a> next()
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throws <a href="../db/DatabaseException.html" title="class in com.sleepycat.db">DatabaseException</a></pre>
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<div class="block">Moves the cursor to the next value and returns it, or returns null
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if there are no more values in the cursor range. If the cursor is
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uninitialized, this method returns the first value.
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<p><a href="../db/LockMode.html#DEFAULT"><code>LockMode.DEFAULT</code></a> is used implicitly.</p></div>
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<dl>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>the next value, or null if there are no more values in the
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cursor range.</dd>
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<dt><span class="throwsLabel">Throws:</span></dt>
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<dd><code><a href="../db/DatabaseException.html" title="class in com.sleepycat.db">DatabaseException</a></code> - the base class for all BDB exceptions.</dd>
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</dl>
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</li>
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</ul>
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<a name="next-com.sleepycat.db.LockMode-">
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<h4>next</h4>
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<pre class="methodSignature"><a href="ForwardCursor.html" title="type parameter in ForwardCursor">V</a> next​(<a href="../db/LockMode.html" title="class in com.sleepycat.db">LockMode</a> lockMode)
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throws <a href="../db/DatabaseException.html" title="class in com.sleepycat.db">DatabaseException</a></pre>
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<div class="block">Moves the cursor to the next value and returns it, or returns null
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if there are no more values in the cursor range. If the cursor is
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uninitialized, this method returns the first value.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>lockMode</code> - the lock mode to use for this operation, or null to
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use <a href="../db/LockMode.html#DEFAULT"><code>LockMode.DEFAULT</code></a>.</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>the next value, or null if there are no more values in the
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cursor range.</dd>
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<dt><span class="throwsLabel">Throws:</span></dt>
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<dd><code><a href="../db/DatabaseException.html" title="class in com.sleepycat.db">DatabaseException</a></code> - the base class for all BDB exceptions.</dd>
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</dl>
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</li>
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</ul>
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<a name="iterator--">
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<h4>iterator</h4>
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<pre class="methodSignature">java.util.Iterator<<a href="ForwardCursor.html" title="type parameter in ForwardCursor">V</a>> iterator()</pre>
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<div class="block">Returns an iterator over the key range, starting with the value
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following the current position or at the first value if the cursor is
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uninitialized.
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<p><a href="../db/LockMode.html#DEFAULT"><code>LockMode.DEFAULT</code></a> is used implicitly.</p></div>
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<dl>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
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<dd><code>iterator</code> in interface <code>java.lang.Iterable<<a href="ForwardCursor.html" title="type parameter in ForwardCursor">V</a>></code></dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>the iterator.</dd>
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</dl>
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</li>
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</ul>
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<a name="iterator-com.sleepycat.db.LockMode-">
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<h4>iterator</h4>
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<pre class="methodSignature">java.util.Iterator<<a href="ForwardCursor.html" title="type parameter in ForwardCursor">V</a>> iterator​(<a href="../db/LockMode.html" title="class in com.sleepycat.db">LockMode</a> lockMode)</pre>
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<div class="block">Returns an iterator over the key range, starting with the value
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following the current position or at the first value if the cursor is
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uninitialized.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>lockMode</code> - the lock mode to use for all operations performed
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using the iterator, or null to use <a href="../db/LockMode.html#DEFAULT"><code>LockMode.DEFAULT</code></a>.</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
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<dd>the iterator.</dd>
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</dl>
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</li>
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</ul>
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<a name="close--">
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<h4>close</h4>
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<pre class="methodSignature">void close()
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throws <a href="../db/DatabaseException.html" title="class in com.sleepycat.db">DatabaseException</a></pre>
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<div class="block">Closes the cursor.</div>
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<dl>
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<dt><span class="throwsLabel">Throws:</span></dt>
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<dd><code><a href="../db/DatabaseException.html" title="class in com.sleepycat.db">DatabaseException</a></code> - the base class for all BDB exceptions.</dd>
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</dl>
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</li>
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