Berkeley DB Java Edition
version 2.0.90

Uses of Class
com.sleepycat.je.Transaction

Packages that use Transaction
com.sleepycat.collections Data access based on the standard Java collections API. 
com.sleepycat.je Foundation for creating environments, databases and transactions; provides cursor based data access. 
 

Uses of Transaction in com.sleepycat.collections
 

Methods in com.sleepycat.collections that return Transaction
 Transaction CurrentTransaction.abortTransaction()
          Aborts the transaction that is active for the current thread for this environment and makes the parent transaction (if any) the current transaction.
 Transaction CurrentTransaction.beginTransaction(TransactionConfig config)
          Begins a new transaction for this environment and associates it with the current thread.
 Transaction CurrentTransaction.commitTransaction()
          Commits the transaction that is active for the current thread for this environment and makes the parent transaction (if any) the current transaction.
 Transaction CurrentTransaction.getTransaction()
          Returns the transaction associated with the current thread for this environment, or null if no transaction is active.
 

Uses of Transaction in com.sleepycat.je
 

Methods in com.sleepycat.je that return Transaction
 Transaction Environment.beginTransaction(Transaction parent, TransactionConfig txnConfig)
          Create a new transaction in the database environment.
 Transaction Environment.getThreadTransaction()
          Returns the transaction associated with this thread if implied transactions are being used.
 Transaction XAEnvironment.getXATransaction(Xid xid)
          This method can be used by the application to get the Transaction object given an XA Xid.
 

Methods in com.sleepycat.je with parameters of type Transaction
 Transaction Environment.beginTransaction(Transaction parent, TransactionConfig txnConfig)
          Create a new transaction in the database environment.
 OperationStatus SecondaryDatabase.delete(Transaction txn, DatabaseEntry key)
          Deletes the key/data pair from the associated primary database and all secondary indices.
 OperationStatus Database.delete(Transaction txn, DatabaseEntry key)
          Remove key/data pairs from the database.
 OperationStatus SecondaryDatabase.get(Transaction txn, DatabaseEntry key, DatabaseEntry pKey, DatabaseEntry data, LockMode lockMode)
          Retrieves the key/data pair with the given key.
 OperationStatus SecondaryDatabase.get(Transaction txn, DatabaseEntry key, DatabaseEntry data, LockMode lockMode)
          Retrieves the key/data pair with the given key.
 OperationStatus Database.get(Transaction txn, DatabaseEntry key, DatabaseEntry data, LockMode lockMode)
          Retrieves the key/data pair with the given key.
 long Sequence.get(Transaction txn, int delta)
          Return the next available element in the sequence and changes the sequence value by delta.
 OperationStatus SecondaryDatabase.getSearchBoth(Transaction txn, DatabaseEntry key, DatabaseEntry pKey, DatabaseEntry data, LockMode lockMode)
          Retrieves the key/data pair with the specified secondary and primary key, that is, both the primary and secondary key items must match.
 OperationStatus SecondaryDatabase.getSearchBoth(Transaction txn, DatabaseEntry key, DatabaseEntry data, LockMode lockMode)
          This operation is not allowed with this method signature.
 OperationStatus Database.getSearchBoth(Transaction txn, DatabaseEntry key, DatabaseEntry data, LockMode lockMode)
          Retrieves the key/data pair with the given key and data value, that is, both the key and data items must match.
 Cursor Database.openCursor(Transaction txn, CursorConfig cursorConfig)
          Return a cursor into the database.
 Database Environment.openDatabase(Transaction txn, String databaseName, DatabaseConfig dbConfig)
          Open, and optionally create, a Database.
 SecondaryCursor SecondaryDatabase.openSecondaryCursor(Transaction txn, CursorConfig cursorConfig)
          Obtain a cursor on a database, returning a SecondaryCursor.
 SecondaryDatabase Environment.openSecondaryDatabase(Transaction txn, String databaseName, Database primaryDatabase, SecondaryConfig secConfig)
          Open and optionally create a SecondaryDatabase.
 Sequence Database.openSequence(Transaction txn, DatabaseEntry key, SequenceConfig sequenceConfig)
          Open a sequence in the database.
 OperationStatus SecondaryDatabase.put(Transaction txn, DatabaseEntry key, DatabaseEntry data)
          This operation is not allowed on a secondary database.
 OperationStatus Database.put(Transaction txn, DatabaseEntry key, DatabaseEntry data)
           Store the key/data pair into the database.
 OperationStatus SecondaryDatabase.putNoDupData(Transaction txn, DatabaseEntry key, DatabaseEntry data)
          This operation is not allowed on a secondary database.
 OperationStatus Database.putNoDupData(Transaction txn, DatabaseEntry key, DatabaseEntry data)
           Store the key/data pair into the database if it does not already appear in the database.
 OperationStatus SecondaryDatabase.putNoOverwrite(Transaction txn, DatabaseEntry key, DatabaseEntry data)
          This operation is not allowed on a secondary database.
 OperationStatus Database.putNoOverwrite(Transaction txn, DatabaseEntry key, DatabaseEntry data)
           Store the key/data pair into the database if the key does not already appear in the database.
 void Environment.removeDatabase(Transaction txn, String databaseName)
          Remove a database.
 void Database.removeSequence(Transaction txn, DatabaseEntry key)
          Remove the sequence from the database.
 void Environment.renameDatabase(Transaction txn, String databaseName, String newName)
          Rename a database.
 void Environment.setThreadTransaction(Transaction txn)
          Sets the transaction associated with this thread if implied transactions are being used.
 void XAEnvironment.setXATransaction(Xid xid, Transaction txn)
          This method can be used by the application to set the Transaction object for an XA Xid.
 int SecondaryDatabase.truncate(Transaction txn, boolean countRecords)
          This operation is not allowed on a secondary database.
 int Database.truncate(Transaction txn, boolean returnCount)
          Deprecated. As of JE 1.7, replaced by Environment.truncateDatabase(Transaction, String, boolean).

The Database class is thread safe and may be used concurrently by multiple threads, using multiple transactions. It was not possible to supply correct transactional semantics for this method in all cases without imposing a performance penalty on all operations. Specifically, a truncate operation executed within one transaction can be incorrectly seen before commit by other transactions if those later transactions use the same Database handle.

The replacement method, Environment.truncateDatabase(), avoids these issues because all Database handles must be closed before the truncateDatabase() method is called.

 long Environment.truncateDatabase(Transaction txn, String databaseName, boolean returnCount)
          Empty the database, discarding all records it contains.
 


Berkeley DB Java Edition
version 2.0.90

Copyright (c) 1996-2005 Sleepycat Software, Inc. - All rights reserved.