1 // Protocol Buffers - Google's data interchange format 2 // Copyright 2008 Google Inc. All rights reserved. 3 // 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file or at 6 // https://developers.google.com/open-source/licenses/bsd 7 8 package com.google.protobuf; 9 10 import java.util.List; 11 12 /** 13 * An interface extending {@code List<String>} used for repeated string fields to provide optional 14 * access to the data as a list of ByteStrings. The underlying implementation stores values as 15 * either ByteStrings or Strings (see {@link LazyStringArrayList}) depending on how the value was 16 * initialized or last read, and it is often more efficient to deal with lists of ByteStrings when 17 * handling protos that have been deserialized from bytes. 18 */ 19 public interface ProtocolStringList extends List<String> { 20 21 /** Returns a view of the data as a list of ByteStrings. */ asByteStringList()22 List<ByteString> asByteStringList(); 23 } 24