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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.Binding;
     20 import java.util.Set;
     21 
     22 /**
     23  * A binding to a single instance. The same instance is returned for every injection.
     24  *
     25  * @author jessewilson (at) google.com (Jesse Wilson)
     26  * @since 2.0
     27  */
     28 public interface InstanceBinding<T> extends Binding<T>, HasDependencies {
     29 
     30   /** Returns the user-supplied instance. */
     31   T getInstance();
     32 
     33   /**
     34    * Returns the field and method injection points of the instance, injected at injector-creation
     35    * time only.
     36    *
     37    * @return a possibly empty set
     38    */
     39   Set<InjectionPoint> getInjectionPoints();
     40 }
     41