io.netty.handler.codec.memcache.binary.BinaryMemcacheMessage Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of wildfly-client-all

This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

There is a newer version: 35.0.0.Beta1

Show newest version

/*
 * 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:
 *
 *   http://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}.
 * 
 * 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.
     */
    BinaryMemcacheMessage setOpcode(byte code);

    /**
     * Returns the key length of the message.
     * 

     * This may return 0, since the key is optional.
     *
     * @return the key length.
     */
    short keyLength();

    /**
     * Return the extras length of the message.
     * 

     * This may be 0, since the extras content is optional.
     *
     * @return the extras length.
     */
    byte extrasLength();

    /**
     * Returns the data type of the message.
     *
     * @return the data type of the message.
     */
    byte dataType();

    /**
     * Sets the data type of the message.
     *
     * @param dataType the data type of the message.
     */
    BinaryMemcacheMessage setDataType(byte dataType);

    /**
     * Returns the total body length.
     * 

     * Note that this may be 0, since the body is optional.
     *
     * @return the total body length.
     */
    int totalBodyLength();

    /**
     * Sets the total body length.
     * 
     * Note that this may be 0, since the body length is optional.
     *
     * @param totalBodyLength the total body length.
     */
    BinaryMemcacheMessage setTotalBodyLength(int totalBodyLength);

    /**
     * Returns the opaque value.
     *
     * @return the opaque value.
     */
    int opaque();

    /**
     * Sets the opaque value.
     *
     * @param opaque the opaque value to use.
     */
    BinaryMemcacheMessage setOpaque(int opaque);

    /**
     * Returns the CAS identifier.
     *
     * @return the CAS identifier.
     */
    long cas();

    /**
     * Sets the CAS identifier.
     *
     * @param cas the CAS identifier to use.
     */
    BinaryMemcacheMessage setCas(long cas);

    /**
     * Returns the optional key of the document.
     *
     * @return the key of the document.
     */
    ByteBuf key();

    /**
     * Sets the key of the document. {@link ByteBuf#release()} ownership of {@code key}
     * is transferred to this {@link BinaryMemcacheMessage}.
     *
     * @param key the key of the message. {@link ByteBuf#release()} ownership is transferred
     *            to this {@link BinaryMemcacheMessage}.
     */
    BinaryMemcacheMessage setKey(ByteBuf key);

    /**
     * Returns a {@link ByteBuf} representation of the optional extras.
     *
     * @return the optional extras.
     */
    ByteBuf extras();

    /**
     * Sets the extras buffer on the message. {@link ByteBuf#release()} ownership of {@code extras}
     * is transferred to this {@link BinaryMemcacheMessage}.
     *
     * @param extras the extras buffer of the document. {@link ByteBuf#release()} ownership is transferred
     *               to this {@link BinaryMemcacheMessage}.
     */
    BinaryMemcacheMessage setExtras(ByteBuf extras);

    /**
     * Increases the reference count by {@code 1}.
     */
    @Override
    BinaryMemcacheMessage retain();

    /**
     * Increases the reference count by the specified {@code increment}.
     */
    @Override
    BinaryMemcacheMessage retain(int increment);

    @Override
    BinaryMemcacheMessage touch();

    @Override
    BinaryMemcacheMessage touch(Object hint);
}