org.makumba.providers
Class TransactionProvider

java.lang.Object
  org.makumba.providers.TransactionProvider

All Implemented Interfaces:

SingletonHolder

Direct Known Subclasses:

HibernateTransactionProvider, MakumbaTransactionProvider

public abstract class TransactionProvider
extends Object
implements SingletonHolder

This class is a facade for creating different kinds of TransactionProviders.

Version:

$Id: TransactionProvider.java,v 1.1 28.09.2007 15:49:55 Manuel Exp $

Author:

Manuel Gay

Field Summary

static String	CONNECTION_PASSWORD
static String	CONNECTION_PREFIX
static String	CONNECTION_URL
static String	CONNECTION_USERNAME
(package private) static Map<String,TransactionProvider>	providerInstances

Constructor Summary

TransactionProvider()

Method Summary

abstract void	closeDataSource(String dataSourceName)
Transaction	getConnectionTo(String name) Opens a Transaction with the specified dataSource.
protected Transaction	getConnectionTo(String name, TransactionProvider instance) gets a connection from the TransactionProvider needed by the dataSource.
Transaction	getConnectionToDefault() Opens a Transaction to the default dataSource, using getConnectionTo(String) and getDefaultDataSourceName()
abstract CRUDOperationProvider	getCRUD()
protected CRUDOperationProvider	getCRUD(TransactionProvider instance) returns the right CRUD provider according to the last connection
protected abstract CRUDOperationProvider	getCRUDInternal()
String	getDefaultDataSourceName()
static TransactionProvider	getInstance() Gives an instance of a TransactionProvider.
protected abstract Configuration.DataSourceType	getLastConnectionType()
abstract String	getQueryLanguage()
protected String	getQueryLanguage(TransactionProvider instance) returns the query language according to the last connection
protected abstract String	getQueryLanguageInternal()
protected abstract Transaction	getTransaction(String name)
void	release()
protected abstract void	setLastConnectionType(Configuration.DataSourceType type)

Methods inherited from class java.lang.Object

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

Field Detail

providerInstances

static final Map<String,TransactionProvider> providerInstances

CONNECTION_PREFIX

public static final String CONNECTION_PREFIX

See Also:

Constant Field Values

CONNECTION_URL

public static final String CONNECTION_URL

See Also:

Constant Field Values

CONNECTION_USERNAME

public static final String CONNECTION_USERNAME

See Also:

Constant Field Values

CONNECTION_PASSWORD

public static final String CONNECTION_PASSWORD

See Also:

Constant Field Values

Constructor Detail

TransactionProvider

public TransactionProvider()

Method Detail

getInstance

public static TransactionProvider getInstance()

Gives an instance of a TransactionProvider.

getConnectionToDefault

public Transaction getConnectionToDefault()

Opens a Transaction to the default dataSource, using getConnectionTo(String) and getDefaultDataSourceName()

Returns:

a Transaction

getConnectionTo

public Transaction getConnectionTo(String name)

Opens a Transaction with the specified dataSource.

Parameters:

name - the name of the dataSource to connect to

Returns:

a Transaction

getConnectionTo

protected Transaction getConnectionTo(String name,
                                      TransactionProvider instance)

gets a connection from the TransactionProvider needed by the dataSource.

getQueryLanguage

protected String getQueryLanguage(TransactionProvider instance)

returns the query language according to the last connection

getCRUD

protected CRUDOperationProvider getCRUD(TransactionProvider instance)

returns the right CRUD provider according to the last connection

getDefaultDataSourceName

public String getDefaultDataSourceName()

getTransaction

protected abstract Transaction getTransaction(String name)

getCRUDInternal

protected abstract CRUDOperationProvider getCRUDInternal()

getQueryLanguageInternal

protected abstract String getQueryLanguageInternal()

getLastConnectionType

protected abstract Configuration.DataSourceType getLastConnectionType()

setLastConnectionType

protected abstract void setLastConnectionType(Configuration.DataSourceType type)

getCRUD

public abstract CRUDOperationProvider getCRUD()

getQueryLanguage

public abstract String getQueryLanguage()

closeDataSource

public abstract void closeDataSource(String dataSourceName)

release

public void release()

Specified by:

release in interface SingletonHolder