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<title>Berkeley DB: DbTxn.discard</title>
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<h1>DbTxn.discard</h1>
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import com.sleepycat.db.*;
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public void discard(int flags)
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<p>The DbTxn.discard method frees up all the per-process resources
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associated with the specified <a href="../api_java/txn_class.html">DbTxn</a> handle, neither committing
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nor aborting the transaction. This call may be used only after calls
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to <a href="../api_java/txn_recover.html">DbEnv.txn_recover</a> when there are multiple global transaction
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managers recovering transactions in a single Berkeley DB environment. Any
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transactions returned by <a href="../api_java/txn_recover.html">DbEnv.txn_recover</a> that are not handled by
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the current global transaction manager should be discarded using
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<p>The <b>flags</b> parameter is currently unused, and must be set to 0.
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<p>The DbTxn.discard method returns EINVAL if the transaction handle does
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not refer to a transaction that was recovered into a prepared but not
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Otherwise, the DbTxn.discard method throws an exception that encapsulates a non-zero error value on
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<p>After DbTxn.discard has been called, regardless of its return, the
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<a href="../api_java/txn_class.html">DbTxn</a> handle may not be accessed again.
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<p>The DbTxn.discard method may fail and throw an exception encapsulating a non-zero error for the following conditions:
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<p><dt>EINVAL<dd>An invalid flag value or parameter was specified.
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<p>The transaction handle does not refer to a transaction that was
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recovered into a prepared but not yet completed state.
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<p>The DbTxn.discard method may fail and throw an exception for errors specified for other Berkeley DB and C library or system methods.
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If a catastrophic error has occurred, the DbTxn.discard method may fail and
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throw a <a href="../api_java/runrec_class.html">DbRunRecoveryException</a>,
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in which case all subsequent Berkeley DB calls will fail in the same way.
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<a href="../api_java/env_class.html">DbEnv</a>, <a href="../api_java/txn_class.html">DbTxn</a>
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<a href="../api_java/txn_list.html">Transaction Subsystem and Related Methods</a>
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