107 lines
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107 lines
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<title>Example: Display an output queue</title>
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<body id="doptq"><a name="doptq"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Example: Display an output queue</h1>
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<div><p>This example shows how to define and create a command that displays
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an output queue.</p>
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<div class="section"> <p>You can create a command to display an output queue that defaults
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to display the output queue PGMR. The following command, <span class="cmdname">Display
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Output Queue (DSPOQ)</span>, also allows the display station user to display
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any queue on the library list and provides a print option.</p>
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<p>The command
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definition statements for the <span class="cmdname">Display Output Queue (DSPOQ)</span> command
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are: </p>
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<pre>CMD PROMPT('WRKOUTQ.-Default to PGMR')
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PARM KWD(OUTQ) TYPE(*NAME) LEN(10) DFT(PGMR) +
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PROMPT('Output queue')
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PARM KWD(OUTPUT) TYPE(*CHAR) LEN(6) DFT(*) RSTD(*YES)
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VALUES(* *PRINT) PROMPT('Output')</pre>
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<p>The RSTD parameter on the second PARM statement specifies that
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the entry can only be one of the list of values.</p>
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<p>The command processing
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program for the <span class="cmdname">Display Output Queue (DSPOQ)</span> command is:
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</p>
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<pre>PGM PARM(&OUTQ &OUTPUT)
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DCL &OUTQ TYPE(*CHAR) LEN(10)
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DCL &OUTPUT TYPE(*CHAR) LEN(6)
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WRKOUTQ OUTQ(*LIBL/&OUTQ) OUTPUT(&OUTPUT)
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ENDPGM</pre>
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<p>The <span class="cmdname">Create Command (CRTCMD)</span> command is:
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</p>
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<pre>CRTCMD CMD(DSPOQ) PGM(DSPOQ) SRCMBR(DSPOQ)</pre>
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<p>The following command, DSPOQ1, is a variation of the preceding
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command. This command allows the workstation user to enter a qualified name
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for the output queue name, and the command defaults to *LIBL for the library
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name.</p>
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<p>The command definition statements for the DSPOQ1 command are:
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</p>
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<pre> CMD PROMPT('WRKOUTQ.-Default to PGMR')
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PARM KWD(OUTQ) TYPE(QUAL1) +
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PROMPT('Output queue:')
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PARM KWD(OUTPUT) TYPE(*CHAR) LEN(6) RSTD(*YES) +
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VALUES(* *PRINT) DFT(*) +
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PROMPT('Output')
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QUAL1: QUAL TYPE(*NAME) LEN(10) DFT(PGMR)
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QUAL TYPE(*NAME) LEN(10) DFT(*LIBL) +
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SPCVAL(*LIBL)</pre>
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<p>The QUAL statements are used to define the qualified name that
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the user can enter for the OUTQ parameter. If the user does not enter a name,
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*LIBL/PGMR is used. The SPCVAL parameter is used because any library name
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must follow the rules for a valid name (for example, begin with A through
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Z), and the value *LIBL breaks these rules. The SPCVAL parameter specifies
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that if *LIBL is entered, i5/OS™ is to ignore the name validation rules.</p>
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<p>The
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command processing program for the DSPOQ1 command is: </p>
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<pre>PGM PARM(&OUTQ &OUTPUT)
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DCL &OUTQ TYPE(*CHAR) LEN(20)
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DCL &OBJNAM TYPE(*CHAR) LEN(10)
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DCL &LIB TYPE(*CHAR) LEN(10)
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DCL &OUTPUT TYPE(*CHAR) LEN(6)
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CHGVAR &OBJNAM %SUBSTRING(&OUTQ 1 10)
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CHGVAR &LIB %SUBSTRING(&OUTQ 11 10)
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WRKOUTQ OUTQ(&LIB/&OBJNAM) OUTPUT(&OUTPUT)
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ENDPGM</pre>
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<p>Because a qualified name is passed from a command as a 20-character
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variable, the substring built-in function (%SUBSTRING or %SST) must be used
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in this program to put the qualified name in the proper CL syntax.</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="exdcc.htm" title="This contains examples of defining and creating commands.">Examples: Define and create commands</a></div>
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</div>
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<div class="relinfo"><strong>Related information</strong><br />
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<div><a href="../cl/crtcmd.htm">Create Command (CRTCMD) command</a></div>
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</div>
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</div>
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