1 /**
2  * Copyright (C) 2010 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.multibindings;
18 
19 import com.google.inject.spi.BindingTargetVisitor;
20 
21 /**
22  * A visitor for the multibinder extension.
23  * <p>
24  * If your {@link BindingTargetVisitor} implements this interface, bindings created by using
25  * {@link Multibinder}, {@link MapBinder} or {@link OptionalBinderBinding} will be visited through
26  * this interface.
27  *
28  * @since 3.0
29  * @author sameb@google.com (Sam Berlin)
30  */
31 public interface MultibindingsTargetVisitor<T, V> extends BindingTargetVisitor<T, V> {
32 
33   /**
34    * Visits a binding created through {@link Multibinder}.
35    */
visit(MultibinderBinding<? extends T> multibinding)36   V visit(MultibinderBinding<? extends T> multibinding);
37 
38   /**
39    * Visits a binding created through {@link MapBinder}.
40    */
visit(MapBinderBinding<? extends T> mapbinding)41   V visit(MapBinderBinding<? extends T> mapbinding);
42 
43   /**
44    * Visits a binding created through {@link OptionalBinder}.
45    *
46    * @since 4.0
47    */
visit(OptionalBinderBinding<? extends T> optionalbinding)48   V visit(OptionalBinderBinding<? extends T> optionalbinding);
49 
50 }
51