Method Detail

• isPrimitive

  public static boolean isPrimitive(String className)

  GWT-ified Class.isPrimitive.

  This version takes a String argument, not a Class argument, because we won't have been able to use Class.forName to create a Class.

• isIntegerPrimitive

  public static boolean isIntegerPrimitive(String className)

  Returns true if the type is an integer primitive.

  We mean 'integer' in the mathematical sense (ie. a whole number), not the Java sense, so byte, short, int and long all return true. Determining whether a type is 'whole number compatible' is useful for widgets like sliders and spinners.

• isPrimitiveWrapper

  public static boolean isPrimitiveWrapper(String className)

  GWT-ified ClassUtils.isPrimitiveWrapper.

  This version takes a String argument, not a Class argument, because we won't have been able to use Class.forName to create a Class.

• isCollection

  public static boolean isCollection(String className)

  Whether the given class name is a Collection. This is a crude, GWT-equivalent of...

  Collection.class.isAssignableFrom( ... );

  ...subclasses may need to override this method if they introduce a new Collection subtype.

• fromString

  public static List<String> fromString(String collection,
                        char separator)

  GWT-ified CollectionUtils.fromString.

  This version does not use regular expressions.

• toString

  public static String toString(String[] collection,
                char separator)

  GWT-ified CollectionUtils.toString.

  This version does not use regular expressions.

• toString

  public static String toString(Collection<?> collection,
                char separator)

  GWT-ified CollectionUtils.toString.

  This version does not use regular expressions.

• setListBoxSelectedItem

  public static void setListBoxSelectedItem(com.google.gwt.user.client.ui.ListBox listBox,
                            String value)

• alert

  public static void alert(Throwable caught)

• isReadOnly

  public static boolean isReadOnly(Map<String,String> attributes)

  Returns whether the attributes have READ_ONLY or NO_SETTER set to TRUE.

  The latter case relies on complex attributes being rendered by nested Metawidgets: the nested Metawidgets will not have setReadOnly set on them, which gets us the desired result. Namely, primitive types without a setter are rendered as read-only, complex types without a setter are rendered as writeable (because their nested primitives are writeable).

  Furthermore, what is considered 'primitive' is up to the platform. Some platforms may consider, say, an Address as 'primitive', using a dedicated Address widget. Other platforms may consider an Address as complex, using a nested Metawidget.

  Returns:

  true if the attributes have READ_ONLY set to TRUE, or NO_SETTER set to true.

• getActualClassOrType

  public static String getActualClassOrType(Map<String,String> attributes)

  Looks up the TYPE attribute, but first checks the ACTUAL_CLASS attribute.

  Returns:

  ACTUAL_CLASS of, if none, TYPE or, if none, null. Never an empty String.

• needsEmptyLookupItem

  public static boolean needsEmptyLookupItem(Map<String,String> attributes)

  Returns true if the lookup is nullable, not required, or has a forced empty choice.

• stripSection

  public static String stripSection(Map<String,String> attributes)