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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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package com.google.protobuf;
import com.google.protobuf.ArrayDecoders.Registers;
import java.io.IOException;
/**
* A runtime schema for a single protobuf message. A schema provides operations on message instances
* such as serialization/deserialization.
*/
@ExperimentalApi
@CheckReturnValue
interface Schema {
/** Writes the given message to the target {@link Writer}. */
void writeTo(T message, Writer writer) throws IOException;
/**
* Reads fields from the given {@link Reader} and merges them into the message. It doesn't make
* the message immutable after parsing is done. To make the message immutable, use {@link
* #makeImmutable}.
*/
void mergeFrom(T message, Reader reader, ExtensionRegistryLite extensionRegistry)
throws IOException;
/**
* Like the above but parses from a byte[] without extensions. Entry point of fast path. Note that
* this method may throw IndexOutOfBoundsException if the input data is not valid protobuf wire
* format. Protobuf public API methods should catch and convert that exception to
* InvalidProtocolBufferException.
*/
void mergeFrom(T message, byte[] data, int position, int limit, Registers registers)
throws IOException;
/** Marks repeated/map/extension/unknown fields as immutable. */
void makeImmutable(T message);
/** Checks whether all required fields are set. */
boolean isInitialized(T message);
/** Creates a new instance of the message class. */
T newInstance();
/** Determine of the two messages are equal. */
boolean equals(T message, T other);
/** Compute a hashCode for the message. */
int hashCode(T message);
/**
* Merge values from {@code other} into {@code message}. This method doesn't make the message
* immutable. To make the message immutable after merging, use {@link #makeImmutable}.
*/
void mergeFrom(T message, T other);
/** Compute the serialized size of the message. */
int getSerializedSize(T message);
}