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71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
11 years ago
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// Copyright 2008 Cyrus Najmabadi
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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@class PBUnknownFieldSet;
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@class PBCodedOutputStream;
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@protocol PBMessage_Builder;
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/**
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* Abstract interface implemented by Protocol Message objects.
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*
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* @author Cyrus Najmabadi
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*/
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@protocol PBMessage<NSObject>
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/**
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* Get an instance of the type with all fields set to their default values.
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* This may or may not be a singleton. This differs from the
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* {@code getDefaultInstance()} method of generated message classes in that
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* this method is an abstract method of the {@code Message} interface
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* whereas {@code getDefaultInstance()} is a static method of a specific
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* class. They return the same thing.
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*/
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- (id<PBMessage>) defaultInstance;
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/**
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* Get the {@code UnknownFieldSet}
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*/
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- (PBUnknownFieldSet*) unknownFields;
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/**
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* Get the number of bytes required to encode this message. The result
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* is only computed on the first call and memoized after that.
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*/
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- (int32_t) serializedSize;
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/**
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* Returns true if all required fields in the message and all embedded
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* messages are set, false otherwise.
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*/
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- (BOOL) isInitialized;
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/**
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* Serializes the message and writes it to {@code output}. This does not
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* flush or close the stream.
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*/
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- (void) writeToCodedOutputStream:(PBCodedOutputStream*) output;
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- (void) writeToOutputStream:(NSOutputStream*) output;
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/**
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* Serializes the message to a {@code ByteString} and returns it. This is
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* just a trivial wrapper around
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* {@link #writeTo(CodedOutputStream)}.
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*/
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- (NSData*) data;
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/**
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* Constructs a new builder for a message of the same type as this message.
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*/
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- (id<PBMessage_Builder>) builder;
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@end
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