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1   /*
2    * Copyright 2015 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License, version 2.0 (the
5    * "License"); you may not use this file except in compliance with the License. You may obtain a
6    * 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 distributed under the License
11   * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
12   * or implied. See the License for the specific language governing permissions and limitations under
13   * the License.
14   */
15  package io.netty.handler.codec.http2;
16  
17  import io.netty.util.internal.UnstableApi;
18  
19  /**
20   * A visitor that allows iteration over a collection of streams.
21   */
22  @UnstableApi
23  public interface Http2StreamVisitor {
24      /**
25       * @return <ul>
26       *         <li>{@code true} if the visitor wants to continue the loop and handle the entry.</li>
27       *         <li>{@code false} if the visitor wants to stop handling headers and abort the loop.</li>
28       *         </ul>
29       */
30      boolean visit(Http2Stream stream) throws Http2Exception;
31  }