CODEWITHSUNDEEP
javaibm-mq
devv
devv

Reputation: 311

Java MQEnvironment static properties

This code sends the message to Q. MQEnvironment static values are set . But MQEnvironment is not referenced anywhere in the manager. Then how the properties (hostname, channel,port,CCSID) are provided to connect to MQ?

    MQEnvironment.hostname ="10.XX.XXX.XX";

    MQEnvironment.channel = "SYSTEM.DEF.SVRCONN";

    MQEnvironment.port = 1415;

    MQEnvironment.CCSID = 819;

    System.out.println("connecting MQQueueManager...");
    try {
        MQQueueManager manager = new MQQueueManager("SXX");

        MQQueue queue = null;

        int openOptions = MQC.MQOO_OUTPUT; //MQC.MQOO_INPUT_AS_Q_DEF |

        queue = manager.accessQueue("Q_NAME",
                                            openOptions,
                                            null, null, null);
        // send message
        MQMessage sendMessage = new MQMessage();

        sendMessage.writeObject("TEST MESSAGE@@@@@@@@@@@@@@@@@");
        MQPutMessageOptions pmo = new MQPutMessageOptions();

        queue.put(sendMessage, pmo);

Upvotes: 3

Views: 6647

Answers (2)

Umapathy
Umapathy

Reputation: 772

MQEnvironment has public static class variables (kind of global constants). The MQQueueManager object uses these values if they are set.
http://pic.dhe.ibm.com/infocenter/wmqv7/v7r0m0/index.jsp?topic=%2Fcom.ibm.mq.java.doc%2Fcom%2Fibm%2Fmq%2FMQEnvironment.html

Upvotes: 1

Roger
Roger

Reputation: 7476

The MQQueueManager object checks to see if those values have been set in the MQEnvironment class before it makes a connection to the queue manager.

Also, do NOT use the SYSTEM.DEF.SVRCONN channel as (1) it is against best practices and (2) it is a SYSTEM object that is ONLY to be used by the queue manager. Simply create or have the MQAdmin create a SVRCONN channel for you. i.e. TEST.CHL

Upvotes: 3

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