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SQL Anywhere 11.0.1 » QAnywhere » QAnywhere Reference » QAnywhere SQL API reference » Message properties, headers, and content » Message content

 

ml_qa_getcontentclass

Returns the message type (text or binary).

Parameters
Item Description Remarks
1 Message ID VARCHAR(128). You can obtain the message ID from ml_qa_createmessage or ml_qa_getmessage.
Return value

The content class as INTEGER.

The return value can be:

  • 1   indicates that the message content is binary and should be read using the stored procedure ml_qa_getbinarycontent.

  • 2   indicates that the message content is text and should be read using the stored procedure ml_qa_gettextcontent.

Remarks

You can read this content after a message is received and until a rollback or commit occurs; after that you cannot read it.

See also
Example

In the following example, a message is received and the content is output to the database server messages window:

begin
    declare @msgid varchar(128);
    declare @contentclass integer;
    set @msgid = ml_qa_getmessage( 'myaddress' );
    set @contentclass = ml_qa_getcontentclass( @msgid );
    if @contentclass = 1 then
        message 'message  binary is ' || ml_qa_getbinarycontent( @msgid );
    elseif @contentclass = 2 then
        message 'message  text is ' || ml_qa_gettextcontent( @msgid );
    end if;
    commit;
end