BinaryMemcacheMessage.java — netty Source File

Source Code

/*
 * Copyright 2013 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package io.netty.handler.codec.memcache.binary;

import io.netty.buffer.ByteBuf;
import io.netty.handler.codec.memcache.MemcacheMessage;
import io.netty.util.internal.UnstableApi;

/**
 * An interface that defines a binary Memcache message, providing common properties for
 * {@link BinaryMemcacheRequest} and {@link BinaryMemcacheResponse}.
 * <p/>
 * A {@link BinaryMemcacheMessage} always consists of a header and optional extras or/and
 * a key.
 *
 * @see BinaryMemcacheRequest
 * @see BinaryMemcacheResponse
 */
@UnstableApi
public interface BinaryMemcacheMessage extends MemcacheMessage {

    /**
     * Returns the magic byte for the message.
     *
     * @return the magic byte.
     */
    byte magic();

    /**
     * Sets the magic byte.
     *
     * @param magic the magic byte to use.
     * @see BinaryMemcacheOpcodes for typesafe opcodes.
     */
    BinaryMemcacheMessage setMagic(byte magic);

    /**
     * Returns the opcode for the message.
     *
     * @return the opcode.
     */
    byte opcode();

    /**
     * Sets the opcode for the message.
     *
     * @param code the opcode to use.
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