Method Detail

• isExpression

  public static boolean isExpression(String value)

  Return true if the specified value conforms to the syntax requirements of a value binding expression.

  This method is a mirror of the one in UIComponentTag.isValueReference, but that one is deprecated so may be removed in the future.

  Parameters:

  value - The value to evaluate

  Throws:

  NullPointerException - if value is null

• matchExpression

  public static Matcher matchExpression(String value)

• unwrapExpression

  public static String unwrapExpression(String value)

  Returns:

  the original String, not wrapped in #{...}. If the original String was not wrapped, returns the original String

• wrapExpression

  public static String wrapExpression(String value)

  Returns:

  the original String, wrapped in #{...}. If the original String was already wrapped, returns the original String

• render

  public static void render(javax.faces.context.FacesContext context,
            javax.faces.component.UIComponent component)
                     throws IOException

  Throws:

  IOException

• isJsf2

  public static boolean isJsf2()

  Returns:

  true if the JSF version is 2 or above, false otherwise

• isValidationFailed

  public static boolean isValidationFailed()

• isPartialStateSavingDisabled

  public static boolean isPartialStateSavingDisabled()

• createComponent

  public static <T extends javax.faces.component.UIComponent> T createComponent(String componentType,
                                                                String rendererType)

  Create a component using either the JSF 2.x createComponent( context, componentType, rendererType ) method, or the JSF 1.x createComponent( componentType ) method. The former can be important for JSF 2.x controls that need to dynamically include additional resources (such as JavaScript/CSS files). See this forum discussion.

• setStyleAndStyleClass

  public static void setStyleAndStyleClass(javax.faces.component.UIComponent component,
                           String style,
                           String styleClass)

  Sets the given style and styleClass on the given Component.

  JSF does not provide a common interface for all UIComponents that support style and styleClass, so we must interrogate their attributes directly.

• createUniqueId

  public static String createUniqueId()

  Custom implementation of UIViewRoot.createUniqueId. The 'proper' approach requires traversing the component tree, which could be expensive. See http://java.net/jira/browse/JAVASERVERFACES-2283