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      1 /**
      2  * Copyright (C) 2008 Google Inc.
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  * http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.google.inject.spi;
     18 
     19 import com.google.inject.Binder;
     20 import com.google.inject.Binding;
     21 
     22 /**
     23  * A binding to a key exposed from an enclosed private environment.
     24  *
     25  * @author jessewilson (at) google.com (Jesse Wilson)
     26  * @since 2.0
     27  */
     28 public interface ExposedBinding<T> extends Binding<T>, HasDependencies {
     29 
     30   /**
     31    * Returns the enclosed environment that holds the original binding.
     32    */
     33   PrivateElements getPrivateElements();
     34 
     35   /**
     36    * Unsupported. Always throws {@link UnsupportedOperationException}.
     37    */
     38   void applyTo(Binder binder);
     39 }