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<title>Berkeley DB: DbEnv.set_lk_conflicts</title>
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<h1>DbEnv.set_lk_conflicts</h1>
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<h3><pre>
import com.sleepycat.db.*;
<p>
public void set_lk_conflicts(byte[][] conflicts)
throws DbException;
</pre></h3>
<h1>Description</h1>
<p>Set the locking conflicts matrix.
A non-0 value for the array element indicates that requested_mode and
held_mode conflict:
<p><blockquote><pre>conflicts[requested_mode][held_mode]</pre></blockquote>
<p>The <i>not-granted</i> mode must be represented by 0.
<p>If DbEnv.set_lk_conflicts is never called, a standard conflicts
array is used; see <a href="../ref/lock/stdmode.html">Standard Lock
Modes</a> for more information.
<p>The DbEnv.set_lk_conflicts method configures a database environment, not only operations
performed using the specified <a href="../api_java/env_class.html">DbEnv</a> handle.
<p>The DbEnv.set_lk_conflicts interface may not be called after the <a href="../api_java/env_open.html">DbEnv.open</a>
interface is called.
If the database environment already exists when
<a href="../api_java/env_open.html">DbEnv.open</a> is called, the information specified to DbEnv.set_lk_conflicts
will be ignored.
<p>The DbEnv.set_lk_conflicts method throws an exception that encapsulates a non-zero error value on
failure.
<h1>Errors</h1>
<p>The DbEnv.set_lk_conflicts 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.
<p>Called after <a href="../api_java/env_open.html">DbEnv.open</a> was called.
</dl>
<p><dl compact>
<p><dt>ENOMEM<dd>No memory was available to copy the conflicts array.
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<p>The DbEnv.set_lk_conflicts 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 DbEnv.set_lk_conflicts 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.
<h1>Class</h1>
<a href="../api_java/env_class.html">DbEnv</a>, <a href="../api_java/lock_class.html">DbLock</a>
<h1>See Also</h1>
<a href="../api_java/lock_list.html">Locking Subsystem and Related Methods</a>
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