DnsMessage.java — netty Source File

Source Code

/*
 * Copyright 2015 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.dns;

import io.netty.util.ReferenceCounted;

/**
 * The superclass which contains core information concerning a {@link DnsQuery} and a {@link DnsResponse}.
 */
public interface DnsMessage extends ReferenceCounted {

    /**
     * Returns the {@code ID} of this DNS message.
     */
    int id();

    /**
     * Sets the {@code ID} of this DNS message.
     */
    DnsMessage setId(int id);

    /**
     * Returns the {@code opCode} of this DNS message.
     */
    DnsOpCode opCode();

    /**
     * Sets the {@code opCode} of this DNS message.
     */
    DnsMessage setOpCode(DnsOpCode opCode);

    /**
     * Returns the {@code RD} (recursion desired} field of this DNS message.
     */
    boolean isRecursionDesired();

    /**
     * Sets the {@code RD} (recursion desired} field of this DNS message.
     */
    DnsMessage setRecursionDesired(boolean recursionDesired);

    /**
     * Returns the {@code Z} (reserved for future use) field of this DNS message.
     */
    int z();

    /**
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