com.google.gwt.i18n.client

## Interface ConstantsWithLookup

- All Superinterfaces:
    Constants, Localizable, LocalizableResource

      public interface ConstantsWithLookup
      extends Constants

  Like `Constants`, a tag interface that facilitates locale-sensitive, compile-time binding of constant values supplied from properties files with the added ability to look up constants at runtime with a string key.

  `ConstantsWithLookup` extends `Constants` and is identical in behavior, adding only a family of special-purpose lookup methods such as `getString(String)`.

  It is generally preferable to extend `Constants` rather than `ConstantsWithLookup` because `ConstantsWithLookup` forces all constants to be retained in the compiled script, preventing the GWT compiler from pruning unused constant accessors.

  ### 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>

  ### Note

  You should not directly implement this interface or interfaces derived from it since an implementation is generated automatically when message interfaces are created using `GWT.create(Class)`.
  See Also:
    `Constants`

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from interface com.google.gwt.i18n.client.Constants

      `Constants.DefaultBooleanValue, Constants.DefaultDoubleValue, Constants.DefaultFloatValue, Constants.DefaultIntValue, Constants.DefaultStringArrayValue, Constants.DefaultStringMapValue, Constants.DefaultStringValue`

    - ### Nested classes/interfaces inherited from interface com.google.gwt.i18n.client.LocalizableResource

      `LocalizableResource.DefaultLocale, LocalizableResource.Description, LocalizableResource.Generate, LocalizableResource.GeneratedFrom, LocalizableResource.GenerateKeys, LocalizableResource.Key, LocalizableResource.Meaning`

  - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `getBoolean(java.lang.String methodName)` Look up `boolean` by method name.
    `double` | `getDouble(java.lang.String methodName)` Look up `double` by method name.
    `float` | `getFloat(java.lang.String methodName)` Look up `float` by method name.
    `int` | `getInt(java.lang.String methodName)` Look up `int` by method name.
    `java.util.Map<java.lang.String,java.lang.String>` | `getMap(java.lang.String methodName)` Look up `Map` by method name.
    `java.lang.String` | `getString(java.lang.String methodName)` Look up `String` by method name.
    `java.lang.String[]` | `getStringArray(java.lang.String methodName)` Look up `String[]` by method name.

- - ### Method Detail

    - #### getBoolean

          boolean getBoolean(java.lang.String methodName)
                      throws java.util.MissingResourceException

      Look up `boolean` by method name.
      Parameters:
        `methodName` - method name
      Returns:
        boolean returned by method
      Throws:
        `java.util.MissingResourceException` - if methodName is not valid

    - #### getDouble

          double getDouble(java.lang.String methodName)
                    throws java.util.MissingResourceException

      Look up `double` by method name.
      Parameters:
        `methodName` - method name
      Returns:
        double returned by method
      Throws:
        `java.util.MissingResourceException` - if methodName is not valid

    - #### getFloat

          float getFloat(java.lang.String methodName)
                  throws java.util.MissingResourceException

      Look up `float` by method name.
      Parameters:
        `methodName` - method name
      Returns:
        float returned by method
      Throws:
        `java.util.MissingResourceException` - if methodName is not valid

    - #### getInt

          int getInt(java.lang.String methodName)
              throws java.util.MissingResourceException

      Look up `int` by method name.
      Parameters:
        `methodName` - method name
      Returns:
        int returned by method
      Throws:
        `java.util.MissingResourceException` - if methodName is not valid

    - #### getMap

          java.util.Map<java.lang.String,java.lang.String> getMap(java.lang.String methodName)
                                                           throws java.util.MissingResourceException

      Look up `Map` by method name.
      Parameters:
        `methodName` - method name
      Returns:
        Map returned by method
      Throws:
        `java.util.MissingResourceException` - if methodName is not valid

    - #### getString

          java.lang.String getString(java.lang.String methodName)
                              throws java.util.MissingResourceException

      Look up `String` by method name.
      Parameters:
        `methodName` - method name
      Returns:
        String returned by method
      Throws:
        `java.util.MissingResourceException` - if methodName is not valid

    - #### getStringArray

          java.lang.String[] getStringArray(java.lang.String methodName)
                                     throws java.util.MissingResourceException

      Look up `String[]` by method name.
      Parameters:
        `methodName` - method name
      Returns:
        String[] returned by method
      Throws:
        `java.util.MissingResourceException` - if methodName is not valid