Murach's Cics Desk Reference: Programmer's Reference

by Menendez, Raul; Lowe, Doug

• ISBN13: 9781890774172
• ISBN10: 1890774170
• Edition: 3rd
• Format: Paperback
• Copyright: 2002-09-01
• Publisher: Mike Murach & Associates Inc

Summary

This new edition of Murach's classic CICS Programmer's Desk Reference is updated throughout to present both the latest versions of CICS and the latest CICS programming practices. An easy-to-use CICS command reference makes up the bulk of the book. But there is also new or expanded material on CICS program design, creating HTML documents from BMS mapsets for web-based CICS applications, defining CICS resources, and more!

Table of Contents

CICS programming guidelines
CICS program design
Traditional program design vs. modular program design	p. 4
Traditional program design	p. 4
Modular program design	p. 5
Pseudo-conversational programming	p. 6
A program development procedure	p. 8
Program specifications	p. 9
Event/response charts	p. 12
Structure charts	p. 14
A general procedure for designing the first two levels of a structure chart	p. 14
A general procedure for designing one leg of a structure chart	p. 15
Design variations for modular programs	p. 17
Design considerations for the presentation logic	p. 18
Design considerations for the business logic	p. 20
Structure listings	p. 22
CICS programming fundamentals
How programs execute under CICS	p. 24
CICS supports multitasking	p. 24
How CICS invokes an application program	p. 24
Program storage	p. 26
The Working-Storage Section	p. 26
The Linkage Section	p. 27
The Procedure Division: Coding basics	p. 30
How to code program modules	p. 30
How to code CICS commands	p. 30
How to handle exceptional conditions	p. 31
The Procedure Division: Controlling program processing	p. 32
Traditional design: How to code the top-level module of a program	p. 32
Modular design: How to code the top-level module of the business logic portion	p. 34
How to detect the use of AID keys	p. 36
How to invoke other programs	p. 38
The Procedure Division: User interface and I/O considerations	p. 40
How to modify attribute bytes	p. 40
How to control cursor positioning	p. 42
How to edit terminal input data	p. 43
How to update file records	p. 44
COBOL features you can't use in a command-level CICS program	p. 45
Coding conventions found in older programs	p. 46
JCL procedures for CICS program development
Preparing a CICS program for execution	p. 48
How to prepare a BMS mapset	p. 50
How to prepare a command-level COBOL program	p. 52
Translator and compiler options	p. 54
Testing and debugging
Installation-dependent considerations	p. 58
4 common types of testing	p. 58
CICS testing environments	p. 59
Developing a unit test plan	p. 60
A 3-step plan for unit testing	p. 60
A checklist for program testing	p. 61
Testing a program from the top down	p. 62
Additional considerations for modular programs	p. 64
CICS service transactions for testing and debugging	p. 65
CESN: The sign-on transaction	p. 65
CESF: The sign-off transaction	p. 65
CEMT: The master terminal transaction	p. 66
CECI: The command-level interpreter	p. 68
CEDF: The Execution Diagnostics Facility	p. 70
CICS abend codes	p. 72
Exceptional condition abends	p. 72
Program check abends (ASRA abend code)	p. 73
Other abend codes	p. 73
Transaction dump debugging	p. 74
How to determine the cause of an abend	p. 74
How to determine the instruction that caused the abend	p. 74
A model program using two different designs
The customer maintenance program: Traditional design	p. 76
The program overview	p. 77
The screen layouts	p. 78
The copy members	p. 79
The error-handling program (SYSERR)	p. 80
The event/response chart	p. 81
The structure chart	p. 82
The BMS mapset	p. 83
The symbolic map	p. 87
The customer maintenance program: CUSTMNT2	p. 90
The customer maintenance program: Modular design	p. 101
The program overview	p. 102
The screen layouts	p. 103
The copy members	p. 104
The error-handling program (SYSERR)	p. 105
The event/response chart	p. 106
The structure chart for the presentation logic	p. 107
The structure chart for the business logic	p. 108
The BMS mapset for the presentation logic	p. 109
The symbolic map for the presentation logic	p. 113
The presentation logic program: CSTMNTP	p. 116
The business logic program: CSTMNTB	p. 125
3 more model programs
The menu program	p. 132
The program overview	p. 132
The screen layout	p. 133
The event/response chart	p. 134
The structure chart	p. 134
The BMS mapset	p. 135
The symbolic map	p. 137
The menu program: INVMENU	p. 138
The customer inquiry program	p. 141
The program overview	p. 141
The screen layout	p. 142
The event/response chart	p. 143
The structure chart	p. 144
The BMS mapset	p. 145
The symbolic map	p. 147
The customer inquiry program: CUSTINQ2	p. 149
The order entry program	p. 156
The program overview	p. 156
The screen layout	p. 157
The event/response chart	p. 158
The structure chart	p. 159
The BMS mapset	p. 160
The programmer-generated symbolic map	p. 163
The order entry program: ORDRENT	p. 166
The GETINV subprogram	p. 178
The INTEDIT subprogram	p. 179
The NUMEDIT subprogram	p. 180
CICS command reference
CICS command preview
Syntax conventions	p. 186
Syntax notation	p. 186
Argument values	p. 186
Data types	p. 187
RESP and RESP2 options	p. 188
Commands by function	p. 189
CICS commands: An alphabetical list of the commands that are commonly used in CICS/COBOL programs, with command syntax, option explanations, exceptional conditions, notes and tips on usage, and coding examples
Basic Mapping support
BMS mapset definition for 3270 displays
Characteristics of 3270 displays	p. 470
Standard attributes	p. 470
The format and contents of an attribute byte	p. 472
Extended attributes	p. 474
Recommendations for formatting screen displays	p. 476
How to code a BMS mapset	p. 478
The commands and macros in a BMS mapset	p. 478
Assembler language syntax	p. 479
The DFHMSD macro instruction	p. 480
The DFHMDI macro instruction	p. 484
The DFHMDF macro instruction	p. 488
The symbolic map	p. 494
BMS-generated symbolic maps	p. 494
How to create your own symbolic map	p. 498
A complete BMS mapset	p. 500
Creating HTML documents from BMS mapsets
How to prepare an HTML template	p. 504
The conversion process	p. 504
JCL that invokes the DFHMAPT procedure	p. 504
The DFHMAPT procedure	p. 505
Generated HTML output	p. 506
Standard output	p. 506
Customized output	p. 507
How to create a customizing macro definition with DFHMDX	p. 508
The DFHMDX macro	p. 509
The DFHWBOUT macro	p. 512
CICS program development aids
AMS commands to define and manipulate VSAM files
How to code AMS commands	p. 516
Parameters, continuation lines, and abbreviations	p. 516
Parameter values and subparameter lists	p. 516
Parameter groups and parentheses	p. 517
Comments	p. 517
How to invoke AMS using JCL	p. 518
The DD statement for VSAM files	p. 518
Coding example	p. 518
The DEFINE CLUSTER command	p. 519
The DEFINE ALTERNATEINDEX command	p. 523
The DEFINE PATH command	p. 526
The BLDINDEX command	p. 527
The LISTCAT command	p. 529
The ALTER command	p. 531
The DELETE command	p. 532
The PRINT command	p. 533
The REPRO command	p. 535
CICS resource definition
Resource Definition Online (RDO) basics	p. 538
RDO transactions	p. 538
How to enter CEDA commands	p. 538
The CEDA DEFINE command	p. 540
How to define mapsets	p. 541
How to define programs	p. 542
How to define transactions	p. 543
How to define files	p. 544
CICS service transactions
The Master Terminal Transaction (CEMT)	p. 548
The terminal status transaction (CEOT)	p. 551
The temporary storage browse transaction (CEBR)	p. 552
The message switching transaction (CMSG)	p. 553
The page retrieval transaction (CSPG)	p. 556
Reference tables
Hex/binary equivalents	p. 558
EBCDIC code table	p. 559
Attribute bytes	p. 562
Execute Interface Block fields	p. 563
DFHAID field names for EIBAID values	p. 564
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