com.google.gwt.i18n.client

## Class Dictionary

- java.lang.Object
- - com.google.gwt.i18n.client.Dictionary

-     public final class Dictionary
      extends java.lang.Object

  Provides dynamic string lookup of key/value string pairs defined in a module's host HTML page. Each unique instance of `Dictionary` is bound to a named JavaScript object that resides in the global namespace of the host page's window object. The bound JavaScript object is used directly as an associative array.

  For example, suppose you define the following JavaScript object in your host page:

  >     var CurrentTheme = {
  >       highlightColor: "#FFFFFF",
  >       shadowColor: "#808080",
  >       errorColor: "#FF0000",
  >       errorIconSrc: "stopsign.gif"
  >     };

  You can then use a `Dictionary` to access the key/value pairs above:

  >     public void useThemeDictionary() {
  >       Dictionary theme = Dictionary.getDictionary("CurrentTheme");

  >       String highlightColor = theme.get("highlightColor");
  >       String shadowColor = theme.get("shadowColor");
  >       applyShadowStyle(highlightColor, shadowColor);

  >       String errorColor = theme.get("errorColor");
  >       String errorIconSrc = theme.get("errorIconSrc");
  >       Image errorImg = new Image(errorIconSrc);
  >       showError(errorColor, errorImg);
  >     }

  Unlike the family of interfaces that extend `Localizable` which support static internationalization, the `Dictionary` class is fully dynamic. As a result, a variety of error conditions (particularly those involving key mismatches) cannot be caught until runtime. Similarly, the GWT compiler is unable discard unused dictionary values since the structure cannot be statically analyzed.

  ### A Caveat Regarding Locale

  The module's host page completely determines the mappings defined for each dictionary without regard to the `locale` client property. Thus, `Dictionary` is the most flexible of the internationalization types and may provide the simplest form of integration with existing localization systems which were not specifically designed to use GWT's `locale` client property.

  See `Localizable` for background on the `locale` client property.

  ### Required Module

  Modules that use this interface should inherit `com.google.gwt.i18n.I18N`.

  >     <module>
  >       <!-- other inherited modules, such as com.google.gwt.user.User -->
  >       <inherits name="com.google.gwt.i18n.I18N"/>
  >       <!-- additional module settings -->
  >     </module>

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `java.lang.String` | `get(java.lang.String key)` Get the value associated with the given Dictionary key.
    `static Dictionary` | `getDictionary(java.lang.String name)` Returns the `Dictionary` object associated with the given name.
    `java.util.Set<java.lang.String>` | `keySet()` The set of keys associated with this dictionary.
    `(package private) void` | `resourceError(java.lang.String key)`
    `(package private) static void` | `resourceErrorBadType(java.lang.String name)`
    `java.lang.String` | `toString()`
    `java.util.Collection<java.lang.String>` | `values()` Collection of values associated with this dictionary.

    - ### Methods inherited from class java.lang.Object

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

- - ### Method Detail

    - #### getDictionary

          public static Dictionary getDictionary(java.lang.String name)

      Returns the `Dictionary` object associated with the given name.
      Parameters:
        `name` -
      Returns:
        specified dictionary
      Throws:
        `java.util.MissingResourceException`

    - #### resourceErrorBadType

          static void resourceErrorBadType(java.lang.String name)

    - #### get

          public java.lang.String get(java.lang.String key)

      Get the value associated with the given Dictionary key. We have to call Object.hasOwnProperty to verify that the value is defined on this object, rather than a superclass, since normal Object properties are also visible on this object.
      Parameters:
        `key` - to lookup
      Returns:
        the value
      Throws:
        `java.util.MissingResourceException` - if the value is not found

    - #### keySet

          public java.util.Set<java.lang.String> keySet()

      The set of keys associated with this dictionary.
      Returns:
        the Dictionary set

    - #### toString

          public java.lang.String toString()

      Overrides:
        `toString` in class `java.lang.Object`

    - #### values

          public java.util.Collection<java.lang.String> values()

      Collection of values associated with this dictionary.
      Returns:
        the values

    - #### resourceError

          void resourceError(java.lang.String key)