Class CdiUtils

java.lang.Object
de.xima.fc.utils.CdiUtils
public class CdiUtils extends Object

  • Constructor Details

    • CdiUtils

      public CdiUtils()

  • Method Details

    • 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.

    • getBeanCreateIfMissingNullIfNotFound

      @Nullable public static <T> T getBeanCreateIfMissingNullIfNotFound(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, creates and returns the bean. When the class with the qualifiers does not resolve to a bean, 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 existing or created instance, or null if the class is not managed by CDI.