org.jboss.seam.faces.util

Class BeanManagerUtils

java.lang.Object

org.jboss.seam.faces.util.BeanManagerUtils

public class BeanManagerUtils
extends Object

A utility providing common functions to simply use of BeanManager

Author:

Constructor Summary

Constructors

Constructor and Description
BeanManagerUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static <T> T	getContextualInstance(javax.enterprise.inject.spi.BeanManager manager, Class<T> type) Get a single CDI managed instance of a specific class.
<T> T	getContextualInstance(Class<T> type) Get a single CDI managed instance of a specific class.
<T> List<T>	getContextualInstances(Class<T> type) Get all CDI managed instances of a specific class.
static <T> T	getContextualInstanceStrict(javax.enterprise.inject.spi.BeanManager manager, Class<T> type) Get a CDI managed instance matching exactly the given type.
<T> T	getContextualInstanceStrict(Class<T> type) Get a CDI managed instance matching exactly the given type.
void	injectNonContextualInstance(Object instance) Perform @Inject on an object as if it were a bean managed by CDI.
<T> boolean	isDependentScopedStrict(Class<T> type) Determine if a bean is Dependent scoped.

Methods inherited from class java.lang.Object

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

Constructor Detail

BeanManagerUtils

public BeanManagerUtils()

Method Detail

injectNonContextualInstance

public void injectNonContextualInstance(Object instance)

Perform @Inject on an object as if it were a bean managed by CDI.

Parameters:

instance -

isDependentScopedStrict

public <T> boolean isDependentScopedStrict(Class<T> type)

Determine if a bean is Dependent scoped.

getContextualInstance

public <T> T getContextualInstance(Class<T> type)

Get a single CDI managed instance of a specific class. Will use BeanManager@resolve if multiple beans are available.

Parameters:

type - The class for which to return an instance.

Returns:

The managed instance, or null if none could be provided.

getContextualInstance

public static <T> T getContextualInstance(javax.enterprise.inject.spi.BeanManager manager,
                          Class<T> type)

Get a single CDI managed instance of a specific class. Will use BeanManager@resolve if multiple beans are available.

NOTE: Using this method should be avoided at all costs.

Parameters:

manager - The bean manager with which to perform the lookup.

type - The class for which to return an instance.

Returns:

The managed instance, or null if none could be provided.

getContextualInstanceStrict

public <T> T getContextualInstanceStrict(Class<T> type)

Get a CDI managed instance matching exactly the given type. That's why BeanManager#resolve isn't used.

Parameters:

type - The class for which to return an instance.

Returns:

The managed instance, or null if none could be provided.

getContextualInstanceStrict

public static <T> T getContextualInstanceStrict(javax.enterprise.inject.spi.BeanManager manager,
                                Class<T> type)

Get a CDI managed instance matching exactly the given type. That's why BeanManager#resolve isn't used.

NOTE: Using this method should be avoided at all costs. NOTE: Using this method should be avoided at all costs.

Parameters:

manager - The bean manager with which to perform the lookup.

type - The class for which to return an instance.

Returns:

The managed instance, or null if none could be provided.

getContextualInstances

public <T> List<T> getContextualInstances(Class<T> type)

Get all CDI managed instances of a specific class. Return results in a List in no specific order.

Parameters:

type - The class for which to return instances.