public class LocalConnectionFactoryBean extends java.lang.Object implements FactoryBean<java.lang.Object>, InitializingBean
FactoryBeanthat creates a local JCA connection factory in "non-managed" mode (as defined by the Java Connector Architecture specification). This is a direct alternative to a
JndiObjectFactoryBeandefinition that obtains a connection factory handle from a Java EE server's naming environment.
The type of the connection factory is dependent on the actual connector:
the connector can either expose its native API (such as a JDBC
DataSource or a JMS
or follow the standard Common Client Interface (CCI), as defined by the JCA spec.
The exposed interface in the CCI case is
In order to use this FactoryBean, you must specify the connector's
configured as separate JavaBean), which will be used to create the actual
connection factory reference as exposed to the application. Optionally,
you can also specify a
in order to use a custom ConnectionManager instead of the connector's default.
NOTE: In non-managed mode, a connector is not deployed on an application server, or more specificially not interacting with an application server. Consequently, it cannot use a Java EE server's system contracts: connection management, transaction management, and security management. A custom ConnectionManager implementation has to be used for applying those services in conjunction with a standalone transaction coordinator etc.
The connector will use a local ConnectionManager (included in the connector)
by default, which cannot participate in global transactions due to the lack
of XA enlistment. You need to specify an XA-capable ConnectionManager in
order to make the connector interact with an XA transaction coordinator.
Alternatively, simply use the native local transaction facilities of the
exposed API (e.g. CCI local transactions), or use a corresponding
implementation of Spring's PlatformTransactionManager SPI
to drive local transactions.
|Constructor and Description|
|Modifier and Type||Method and Description|
Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
Return an instance (possibly shared or independent) of the object managed by this factory.
Return the type of object that this FactoryBean creates, or
Is the object managed by this factory a singleton? That is, will
Set the JCA ConnectionManager that should be used to create the desired connection factory.
Set the JCA ManagerConnectionFactory that should be used to create the desired connection factory.
public void setManagedConnectionFactory(ManagedConnectionFactory managedConnectionFactory)
The ManagerConnectionFactory will usually be set up as separate bean (potentially as inner bean), populated with JavaBean properties: a ManagerConnectionFactory is encouraged to follow the JavaBean pattern by the JCA specification, analogous to a JDBC DataSource and a JPA EntityManagerFactory.
Note that the ManagerConnectionFactory implementation might expect
a reference to its JCA 1.7 ResourceAdapter, expressed through the
Simply inject the corresponding ResourceAdapter instance into its
"resourceAdapter" bean property in this case, before passing the
ManagerConnectionFactory into this LocalConnectionFactoryBean.
public void setConnectionManager(ConnectionManager connectionManager)
A ConnectionManager implementation for local usage is often included with a JCA connector. Such an included ConnectionManager might be set as default, with no need to explicitly specify one.
public void afterPropertiesSet() throws ResourceException
This method allows the bean instance to perform initialization only possible when all bean properties have been set and to throw an exception in the event of misconfiguration.
@Nullable public java.lang.Object getObject()
As with a
BeanFactory, this allows support for both the
Singleton and Prototype design pattern.
If this FactoryBean is not fully initialized yet at the time of
the call (for example because it is involved in a circular reference),
throw a corresponding
As of Spring 2.0, FactoryBeans are allowed to return
objects. The factory will consider this as normal value to be used; it
will not throw a FactoryBeanNotInitializedException in this case anymore.
FactoryBean implementations are encouraged to throw
FactoryBeanNotInitializedException themselves now, as appropriate.
public java.lang.Class<?> getObjectType()
nullif not known in advance.
This allows one to check for specific types of beans without instantiating objects, for example on autowiring.
In the case of implementations that are creating a singleton object, this method should try to avoid singleton creation as far as possible; it should rather estimate the type in advance. For prototypes, returning a meaningful type here is advisable too.
This method can be called before this FactoryBean has been fully initialized. It must not rely on state created during initialization; of course, it can still use such state if available.
NOTE: Autowiring will simply ignore FactoryBeans that return
null here. Therefore it is highly recommended to implement
this method properly, using the current state of the FactoryBean.
nullif not known at the time of the call
public boolean isSingleton()
FactoryBean.getObject()always return the same object (a reference that can be cached)?
NOTE: If a FactoryBean indicates to hold a singleton object,
the object returned from
getObject() might get cached
by the owning BeanFactory. Hence, do not return
unless the FactoryBean always exposes the same reference.
The singleton status of the FactoryBean itself will generally be provided by the owning BeanFactory; usually, it has to be defined as singleton there.
NOTE: This method returning
false does not
necessarily indicate that returned objects are independent instances.
An implementation of the extended
may explicitly indicate independent instances through its
SmartFactoryBean.isPrototype() method. Plain
implementations which do not implement this extended interface are
simply assumed to always return independent instances if the
isSingleton() implementation returns
The default implementation returns
true, since a
FactoryBean typically manages a singleton instance.