Class EnvEntryDecoratorMapper

All Implemented Interfaces:
DecoratorMapper

public class EnvEntryDecoratorMapper extends ConfigDecoratorMapper
The EnvEntryDecoratorMapper allows the reference to a web-app environment entry for the decorator name, and falls back to ConfigDecoratorMapper's behavior if no matching environment entry is found.

In some cases, it's desirable to allow a deployer, as opposed to a developer, to specify a decorator. In a .WAR file, this can be very difficult, since decorator mappings are specified in decorators.xml (more or less). This mapper corrects that by allowing two types of mapping. If the decorator name is found in an <env-entry>, the entry's value is used as the decorator reference.

Known Issues:

  1. It still uses the decorator path (from decorators.xml). This needs to be corrected for full functionality. If anyone has a suggestion on how...
Version:
$Revision: 1.3 $
Author:
Joseph B. Ottinger
See Also:
  • Constructor Details

    • EnvEntryDecoratorMapper

      public EnvEntryDecoratorMapper()
  • Method Details

    • getNamedDecorator

      public Decorator getNamedDecorator(javax.servlet.http.HttpServletRequest request, String name)
      Retrieves the Decorator specified by the decorator name. If it's not in the environment entries of the web application, assume it's a named decorator from decorators.xml.
      Specified by:
      getNamedDecorator in interface DecoratorMapper
      Overrides:
      getNamedDecorator in class ConfigDecoratorMapper
    • getStringResource

      public static String getStringResource(String name)
      This pulls a value out of the web-app environment. If the value isn't there, returns null.