September 2007
Intermediate to advanced
280 pages
6h 36m
English
book
Developing Web Services Using CICS, WMQ, and WMB
by Chris Rayns, David Carey, Andrew Gardner, Jenny Nott, Adrian Simcock
Content preview from Developing Web Services Using CICS, WMQ, and WMB
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26 Developing Web Services Using CICS, WMQ, and WMB
2.7.1 Advantages over COMMAREAs
The containers and channels approach has several advantages over
COMMAREAs:
Containers can be any size and, as a result, can extend beyond the maximum
32KB size of a COMMAREA. There is no limit to the number of containers
that can be added to a channel, and the size of the individual containers is
limited only by the amount of storage available.
A channel consists of multiple containers, enabling it to be used to pass data
in a more structured way. In contrast, a COMMAREA is a single block of data.
Unlike COMMAREAs, channels do not require the programs that use them to
know the exact size of data returned, making programming easier.
2.7.2 Channels
A channel ...
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