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<!--$Id: dbc_del.so,v 10.23 2000/05/22 20:51:46 bostic Exp $-->
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<title>Berkeley DB: Dbc.del</title>
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<h1>Dbc.del</h1>
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<h3><pre>
import com.sleepycat.db.*;
<p>
public int del(int flags)
throws DbException;
</pre></h3>
<h1>Description</h1>
<p>The Dbc.del method deletes the key/data pair currently referenced by
the cursor.
<p>The <b>flags</b> parameter is currently unused, and must be set to 0.
<p>The cursor position is unchanged after a delete, and subsequent calls to
cursor functions expecting the cursor to reference an existing key will
fail.
<p>If the element has already been deleted, Dbc.del will return
<a href="../ref/program/errorret.html#DB_KEYEMPTY">Db.DB_KEYEMPTY</a>.
<p>If the cursor is not yet initialized, the Dbc.del method throws an exception that encapsulates EINVAL.
<p>Otherwise, the Dbc.del method throws an exception that encapsulates a non-zero error value on
failure.
<h1>Errors</h1>
<p>The Dbc.del method may fail and throw an exception encapsulating a non-zero error for the following conditions:
<p><dl compact>
<p><dt>EINVAL<dd>An invalid flag value or parameter was specified.
</dl>
<p><dl compact>
<p><dt>EPERM <dd>Write attempted on read-only cursor when the <a href="../api_java/env_open.html#DB_INIT_CDB">Db.DB_INIT_CDB</a> flag was
specified to <a href="../api_java/env_open.html">DbEnv.open</a>.
</dl>
<p>If the operation was selected to resolve a deadlock, the
Dbc.del method will fail and
throw a <a href="../api_java/deadlock_class.html">DbDeadlockException</a> exception.
<p>The Dbc.del method may fail and throw an exception for errors specified for other Berkeley DB and C library or system methods.
If a catastrophic error has occurred, the Dbc.del method may fail and throw
a <a href="../api_java/runrec_class.html">DbRunRecoveryException</a>, in which case all subsequent Berkeley DB calls
will fail in the same way.
<h3>Class</h3>
<a href="../api_java/dbc_class.html">Dbc</a>
<h1>See Also</h1>
<a href="../api_java/dbc_close.html">Dbc.close</a>,
<a href="../api_java/dbc_count.html">Dbc.count</a>,
<a href="../api_java/dbc_del.html">Dbc.del</a>,
<a href="../api_java/dbc_dup.html">Dbc.dup</a>,
<a href="../api_java/dbc_get.html">Dbc.get</a>
and
<a href="../api_java/dbc_put.html">Dbc.put</a>.
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