org.cruxframework.crux.core.client.db
Class Transaction

java.lang.Object
  org.cruxframework.crux.core.client.db.DBObject
      org.cruxframework.crux.core.client.db.Transaction

Direct Known Subclasses:

IDXTransaction, WSQLTransaction

public abstract class Transaction
extends DBObject

A transaction on Crux Database, To create transactions, use one of Database's getTransaction() method.

Author:

Thiago da Rosa de Bustamante

Nested Class Summary

static class	Transaction.Mode Transaction mode.
static class	Transaction.TransactionCallback A callback to monitor the current transaction state changes.

Field Summary

protected Transaction.TransactionCallback

transactionCallback

Fields inherited from class org.cruxframework.crux.core.client.db.DBObject

db, logger

Constructor Summary

protected

Transaction(AbstractDatabase db, String[] storeNames, Transaction.Mode mode)

Method Summary

abstract void	abort() Abort current transaction and rollback operations.
protected boolean	containsObjectStore(String storeName)
abstract FileStore	getFileStore() Retrieve a specialized object store for files handling.
Transaction.Mode	getMode() Retrieve the trnasction mode
abstract <K,V> ObjectStore<K,V>	getObjectStore(String storeName) Retrieve an ObjectStore manipulated by the current transaction.
String[]	getStoreNames() Retrieve the object store names associated with this transaction
void	setTransactionCallback(Transaction.TransactionCallback callback) Inform a callback to monitor the current transaction state changes.

Methods inherited from class org.cruxframework.crux.core.client.db.DBObject

reportError

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

transactionCallback

protected Transaction.TransactionCallback transactionCallback

Constructor Detail

Transaction

protected Transaction(AbstractDatabase db,
                      String[] storeNames,
                      Transaction.Mode mode)

Method Detail

getStoreNames

public String[] getStoreNames()

Retrieve the object store names associated with this transaction

Returns:

getMode

public Transaction.Mode getMode()

Retrieve the trnasction mode

Returns:

setTransactionCallback

public void setTransactionCallback(Transaction.TransactionCallback callback)

Inform a callback to monitor the current transaction state changes.

Parameters:

callback -

getObjectStore

public abstract <K,V> ObjectStore<K,V> getObjectStore(String storeName)

Retrieve an ObjectStore manipulated by the current transaction.

Type Parameters:

K -

V -

Parameters:

storeName -

Returns:

abort

public abstract void abort()

Abort current transaction and rollback operations.

getFileStore

public abstract FileStore getFileStore()

Retrieve a specialized object store for files handling.

Returns:

containsObjectStore

protected boolean containsObjectStore(String storeName)

Parameters:

storeName -

Returns: