Package org.apache.cayenne.configuration.server

Class DelegatingDataSourceFactory

java.lang.Object

org.apache.cayenne.configuration.server.DelegatingDataSourceFactory

All Implemented Interfaces:

DataSourceFactory

public class DelegatingDataSourceFactory
extends Object
implements DataSourceFactory

A DataSourceFactory that delegates DataSource creation to another factory, which is determined dynamically per DataNodeDescriptor. The delegate class may be explicitly defined in the DataNodeDescriptor. If not, and if the descriptor has a configuration resource attached to it, XMLPoolingDataSourceFactory is used.

If the environment contains properties cayenne.jdbc.url.domain_name.node_name (or cayenne.jdbc.url) and cayenne.jdbc.driver.domain_name.node_name (or cayenne.jdbc.driver), any DataSourceFactory configured in the DataNodeDescriptor is ignored, and the PropertyDataSourceFactory is used.

Since:

3.1

Field Summary

Fields

Modifier and Type	Field	Description
protected Map<DataSource,ScopeEventListener>	managedDataSources
protected AdhocObjectFactory	objectFactory
protected RuntimeProperties	properties

Constructor Summary

Constructors

Constructor	Description
DelegatingDataSourceFactory()

Method Summary

Modifier and Type	Method	Description
protected void	attachToScope(DataSource dataSource)	Ensure that DataSource implementations returned from this factory receive BeforeScopeEnd events.
DataSource	getDataSource(DataNodeDescriptor nodeDescriptor)	Returns DataSource object based on the configuration provided in the "nodeDescriptor".
protected DataSourceFactory	getDataSourceFactory(DataNodeDescriptor nodeDescriptor)
protected boolean	shouldConfigureDataSourceFromProperties(DataNodeDescriptor nodeDescriptor)
void	shutdown()

Methods inherited from class java.lang.Object

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

Field Details

objectFactory

protected AdhocObjectFactory objectFactory

properties

protected RuntimeProperties properties

managedDataSources

protected Map<DataSource,ScopeEventListener> managedDataSources

Constructor Details

DelegatingDataSourceFactory

public DelegatingDataSourceFactory()

Method Details

getDataSource

public DataSource getDataSource(DataNodeDescriptor nodeDescriptor)
                         throws Exception

Description copied from interface: DataSourceFactory

Returns DataSource object based on the configuration provided in the "nodeDescriptor".

Specified by:

getDataSource in interface DataSourceFactory

Throws:

Exception

shutdown

@BeforeScopeEnd
public void shutdown()

attachToScope

protected void attachToScope(DataSource dataSource)

Ensure that DataSource implementations returned from this factory receive BeforeScopeEnd events.

getDataSourceFactory

protected DataSourceFactory getDataSourceFactory(DataNodeDescriptor nodeDescriptor)

shouldConfigureDataSourceFromProperties

protected boolean shouldConfigureDataSourceFromProperties(DataNodeDescriptor nodeDescriptor)