Advanced MQAI topics

Information on indexing, data conversion and use of message descriptor

• Indexing

  Indexes are used when replacing or removing existing data items from a bag to preserve insertion order. Full details on indexing can be found in Indexing in the MQAI.

• Data conversion

  The strings contained in an MQAI data bag can be in a variety of coded character sets and these can be converted using the mqSetInteger call. Full details on data conversion can be found in Data conversion processing in the MQAI.

• Use of the message descriptor

  MQAI generates a message descriptor which is set to an initial value when the data bag is created. Full details of the use of the message descriptor can be found in Use of the message descriptor in the MQAI.