1 // Protocol Buffers - Google's data interchange format
2 // Copyright 2008 Google Inc. All rights reserved.
3 // http://code.google.com/p/protobuf/
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6 // modification, are permitted provided that the following conditions are
9 // * Redistributions of source code must retain the above copyright
10 // notice, this list of conditions and the following disclaimer.
11 // * Redistributions in binary form must reproduce the above
12 // copyright notice, this list of conditions and the following disclaimer
13 // in the documentation and/or other materials provided with the
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16 // contributors may be used to endorse or promote products derived from
17 // this software without specific prior written permission.
19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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31 package com.google.protobuf;
34 * Base interface for methods common to {@link MessageLite}
35 * and {@link MessageLite.Builder} to provide type equivalency.
37 * @author jonp@google.com (Jon Perlow)
39 public interface MessageLiteOrBuilder {
41 * Get an instance of the type with no fields set. Because no fields are set,
42 * all getters for singular fields will return default values and repeated
43 * fields will appear empty.
44 * This may or may not be a singleton. This differs from the
45 * {@code getDefaultInstance()} method of generated message classes in that
46 * this method is an abstract method of the {@code MessageLite} interface
47 * whereas {@code getDefaultInstance()} is a static method of a specific
48 * class. They return the same thing.
50 MessageLite getDefaultInstanceForType();
53 * Returns true if all required fields in the message and all embedded
54 * messages are set, false otherwise.
56 * <p>See also: {@link MessageOrBuilder#getInitializationErrorString()}
58 boolean isInitialized();