Berkeley DB: DbTxn
Description: Berkeley DB: An embedded database programmatic toolkit.
Keywords: embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++

# DbTxn |

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    import com.sleepycat.db.*;

    public class DbTxn extends Object { ... }

# Description

The DbTxn object is the handle for a transaction. Methods off the DbTxn handle are used to configure, abort and commit the transaction. DbTxn handles are provided to Db methods in order to transactionally protect those database operations.

DbTxn handles are not free-threaded; transactions handles may be used by multiple threads, but only serially, that is, the application must serialize access to the DbTxn handle. Once the DbTxn.abort or DbTxn.commit methods are called, the handle may not be accessed again, regardless of the method's return. In addition, parent transactions may not issue any Berkeley DB operations while they have active child transactions (child transactions that have not yet been committed or aborted) except for DbEnv.txn_begin, DbTxn.abort and DbTxn.commit.

# Class

DbEnv, DbTxn

# See Also

Transaction Subsystem and Related Methods`

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