Package de.xima.fc.utils

Class CdiUtils

java.lang.Object

de.xima.fc.utils.CdiUtils

public class CdiUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
CdiUtils()

Method Summary

Modifier and Type	Method	Description
static <T> T	getBeanCreateIfMissing(Class<T> beanClass, Annotation... qualifiers)	Returns the JSF bean (request scoped, view scoped, session scoped, conversation scoped, or application scoped) of the given class.
static <T> Optional<T>	getBeanIfExists(Class<T> beanClass, Annotation... qualifiers)	Checks if an instance of the JSF bean (request scoped, view scoped, session scoped, conversation scoped, or application scoped) exists, and returns the bean if it does.
static String	getBeanName(Class<?> beanClass, Annotation... qualifiers)
static <T> T	getBeanNullIfMissing(Class<T> beanClass, Annotation... qualifiers)	Checks if an instance of the JSF bean (request scoped, view scoped, session scoped, conversation scoped, or application scoped) exists, and returns the bean if it does.

Methods inherited from class java.lang.Object

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

Constructor Detail

CdiUtils

public CdiUtils()

Method Detail

getBeanCreateIfMissing

public static <T> T getBeanCreateIfMissing(Class<T> beanClass,
                                           Annotation... qualifiers)

Returns the JSF bean (request scoped, view scoped, session scoped, conversation scoped, or application scoped) of the given class. When the bean was not created yet, creates the bean.

Type Parameters:

T - Type of the bean to lookup.

Parameters:

beanClass - Class of the bean to lookup.

qualifiers - Optional qualifiers for the bean.

Returns:

The bean instance of the given class.

getBeanName

public static String getBeanName(Class<?> beanClass,
                                 Annotation... qualifiers)

Parameters:

beanClass - Class of the bean to lookup.

qualifiers - Optional qualifiers for the bean.

Returns:

The name of the JSF bean (request scoped, view scoped, session scoped, conversation scoped, or application scoped).

getBeanIfExists

public static <T> Optional<T> getBeanIfExists(Class<T> beanClass,
                                              Annotation... qualifiers)

Checks if an instance of the JSF bean (request scoped, view scoped, session scoped, conversation scoped, or application scoped) exists, and returns the bean if it does. When the bean was not created yet, returns null.

Type Parameters:

T - Type of the bean to lookup.

Parameters:

beanClass - Class of the bean to lookup.

qualifiers - Optional qualifiers for the bean.

Returns:

The bean instance if the bean was created already, or empty otherwise.

getBeanNullIfMissing

@Nullable
public static <T> T getBeanNullIfMissing(Class<T> beanClass,
                                         Annotation... qualifiers)

Checks if an instance of the JSF bean (request scoped, view scoped, session scoped, conversation scoped, or application scoped) exists, and returns the bean if it does. When the bean was not created yet, returns null.

Type Parameters:

T - Type of the bean to lookup.

Parameters:

beanClass - Class of the bean to lookup.

qualifiers - Optional qualifiers for the bean.

Returns:

The bean instance if the bean was created already, or null otherwise.