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Java example source code file (

This example Java source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

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Java - Java tags/keywords

element, injector, list, object, privateelements, set, util

The Java example source code

 * Copyright (C) 2008 Google Inc.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.



import java.util.List;
import java.util.Set;

 * A private collection of elements that are hidden from the enclosing injector or module by
 * default. See {@link PrivateModule} for details.
 * @author (Jesse Wilson)
 * @since 2.0
public interface PrivateElements extends Element {

   * Returns the configuration information in this private environment.
  List<Element> getElements();

   * Returns the child injector that hosts these private elements, or null if the elements haven't
   * been used to create an injector.
  Injector getInjector();

   * Returns the unique exposed keys for these private elements.
  Set<Key getExposedKeys();

   * Returns an arbitrary object containing information about the "place" where this key was
   * exposed. Used by Guice in the production of descriptive error messages.
   * <p>Tools might specially handle types they know about; {@code StackTraceElement} is a good
   * example. Tools should simply call {@code toString()} on the source object if the type is
   * unfamiliar.
   * @param key one of the keys exposed by this module.
  Object getExposedSource(Key<?> key);

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