Package org.apache.tapestry5.corelib.data

Enum BlankOption

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<BlankOption>
    public enum BlankOption
extends java.lang.Enum<BlankOption>
    Used with the Select component to control whether an initial blank option is supplied. Determines the optionality of the undelrying property from the Select's validate parameter

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      ALWAYS
      Always include the blank option, even if the underlying property is required.
      AUTO
      The default: include the blank option if the underlying property is optional.
      NEVER
      Never include the blank option, even if the underlying property is optional.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static BlankOption valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name.
      static BlankOption[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.

      • Methods inherited from class java.lang.Enum

        clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait

    • Enum Constant Detail

      • ALWAYS

        public static final BlankOption ALWAYS
        Always include the blank option, even if the underlying property is required.

      • NEVER

        public static final BlankOption NEVER
        Never include the blank option, even if the underlying property is optional.

      • AUTO

        public static final BlankOption AUTO
        The default: include the blank option if the underlying property is optional.

    • Method Detail

      • values

        public static BlankOption[] values()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows: 
        for (BlankOption c : BlankOption.values())
    System.out.println(c);
        Returns:
        an array containing the constants of this enum type, in the order they are declared

      • valueOf

        public static BlankOption valueOf​(java.lang.String name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
        Parameters:
        name - the name of the enum constant to be returned.
        Returns:
        the enum constant with the specified name
        Throws:
        java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
        java.lang.NullPointerException - if the argument is null