org.exoplatform.services.jdbc.impl
Class DataSourceProviderImpl

java.lang.Object
  org.exoplatform.services.jdbc.impl.DataSourceProviderImpl

All Implemented Interfaces:

DataSourceProvider

public class DataSourceProviderImpl
extends Object
implements DataSourceProvider

The default implementation of DataSourceProvider. It allows you to define a data source as managed thanks to the configuration of this component. When the data source is declared as managed, the DataSource object will be wrap into a ManagedDataSource.

Version:

$Id$

Author:

Nicolas Filotto

Field Summary

protected boolean	alwaysManaged Indicates that all the data sources are managed
protected boolean	checkIfTxActive Indicates if the data source needs to check if a tx is active to decide if the provided connection needs to be managed or not.
protected Set<String>	managedDS A set of all the data sources that are managed
protected static String	PARAM_ALWAYS_MANAGED The name of the parameter to know if the data sources are always managed.
protected static String	PARAM_CHECK_TX The name of the parameter to know if the tx has to be checked or not.
protected static String	PARAM_MANAGED_DS The name of the parameter of all the managed data sources.
protected TransactionManager	tm The transaction manager

Constructor Summary

DataSourceProviderImpl(InitParams params)
The default constructor

DataSourceProviderImpl(InitParams params, TransactionService tService)
The default constructor

Method Summary

DataSource	getDataSource(String dataSourceName) Try to get the data source from a lookup, if it can't a NamingException will be thrown
boolean	isManaged(String dataSourceName) Indicates whether or not the given data source is managed

Methods inherited from class java.lang.Object

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

Field Detail

PARAM_CHECK_TX

protected static final String PARAM_CHECK_TX

The name of the parameter to know if the tx has to be checked or not.

See Also:

Constant Field Values

PARAM_ALWAYS_MANAGED

protected static final String PARAM_ALWAYS_MANAGED

The name of the parameter to know if the data sources are always managed.

See Also:

Constant Field Values

PARAM_MANAGED_DS

protected static final String PARAM_MANAGED_DS

The name of the parameter of all the managed data sources.

See Also:

Constant Field Values

tm

protected final TransactionManager tm

The transaction manager

checkIfTxActive

protected boolean checkIfTxActive

Indicates if the data source needs to check if a tx is active to decide if the provided connection needs to be managed or not. If it is set to false, the data source will provide only managed connections if the data source itself is managed.

alwaysManaged

protected boolean alwaysManaged

Indicates that all the data sources are managed

managedDS

protected final Set<String> managedDS

A set of all the data sources that are managed

Constructor Detail

DataSourceProviderImpl

public DataSourceProviderImpl(InitParams params)

The default constructor

DataSourceProviderImpl

public DataSourceProviderImpl(InitParams params,
                              TransactionService tService)

The default constructor

Method Detail

getDataSource

public DataSource getDataSource(String dataSourceName)
                         throws NamingException

Description copied from interface: DataSourceProvider

Try to get the data source from a lookup, if it can't a NamingException will be thrown

Specified by:

getDataSource in interface DataSourceProvider

Parameters:

dataSourceName - the name of the data source to lookup

Returns:

the DataSource found thanks to the lookup. The original object could be wrap to another DataSource in order to support managed data source.

Throws:

NamingException

See Also:

DataSourceProvider.getDataSource(java.lang.String)

isManaged

public boolean isManaged(String dataSourceName)

Description copied from interface: DataSourceProvider

Indicates whether or not the given data source is managed

Specified by:

isManaged in interface DataSourceProvider

Parameters:

dataSourceName - the data source to check

Returns:

true if the data source is managed, false otherwise

See Also:

DataSourceProvider.isManaged(java.lang.String)