133 lines
9.4 KiB
HTML
133 lines
9.4 KiB
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<meta name="DC.Title" content="Objects and libraries" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<title>Objects and libraries</title>
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</head>
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<body id="objec"><a name="objec"><!-- --></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">Objects and libraries</h1>
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<div><p>This provides tasks and concepts specific to objects and libraries,
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including functions performed on objects, creating libraries, and specifying
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object authority.</p>
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<div class="p">An <strong>object</strong> is a named storage space that consists of
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a set of characteristics that describes the object and, in some cases, data.
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An object is anything that exists in and occupies space in storage and on
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which operations can be performed. The attributes of an object include its
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name, type, size, the date it was created, and a description provided by the
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user who created the object. The value of an object is the collection of
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information stored in the object. The value of a program, for example, is
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the code that makes up the program. The value of a file is the collection
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of records that makes up the file. The concept of an object simply provides
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a term that can be used to refer to a number of different items that can be
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stored in the system, regardless of what the items are.<div class="note"><span class="notetitle">Note:</span> Objects can reside
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in both libraries and directories. (Previously, an object could reside only
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in a library.) This chapter contains information only about objects residing
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in libraries.</div>
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</div>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="intobj.htm">Objects</a></strong><br />
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This describes object types and functions that can be performed on objects.</li>
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<li class="ulchildlink"><strong><a href="accob.htm">Libraries</a></strong><br />
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On the iSeries™ server, objects are grouped in special objects
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called libraries.</li>
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<li class="ulchildlink"><strong><a href="uslib.htm">Use libraries</a></strong><br />
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A library is an object used to group related objects and to find objects by name. Thus, a library is a directory to a group of objects.</li>
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<li class="ulchildlink"><strong><a href="hmltlng.htm">Change national language versions</a></strong><br />
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You can change in which national language information is presented on the system.</li>
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<li class="ulchildlink"><strong><a href="objde.htm">Describe objects</a></strong><br />
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You can provide a description of an object when you are creating it with a create command.</li>
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<li class="ulchildlink"><strong><a href="disod.htm">Display object descriptions</a></strong><br />
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You can use the <span class="cmdname">Display Object Description (DSPOBJD)</span> or <span class="cmdname">Work
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with Objects (WRKOBJ)</span> command to display descriptions of objects.</li>
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<li class="ulchildlink"><strong><a href="retod.htm">Retrieve object descriptions</a></strong><br />
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You can use the <span class="cmdname">Retrieve Object Description (RTVOBJD)</span> command
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to return the descriptions of a specific object to a CL procedure. </li>
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<li class="ulchildlink"><strong><a href="cinfo.htm">Creation information for objects</a></strong><br />
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Information about the creator of an object and the system on which it was created is saved in the object description when an object is created.</li>
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<li class="ulchildlink"><strong><a href="detob.htm">Detect unused objects on the system</a></strong><br />
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Information provided in the object description can help you detect and manage unused objects on the system.</li>
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<li class="ulchildlink"><strong><a href="moola.htm">Move objects from one library to another</a></strong><br />
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You can use the <span class="cmdname">Move Object (MOVOBJ)</span> command
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to move objects between libraries. </li>
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<li class="ulchildlink"><strong><a href="cdupo.htm">Create duplicate objects</a></strong><br />
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You can use the <span class="cmdname">Create Duplicate Object (CRTDUPOBJ)</span> command
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to create a copy of an existing object. </li>
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<li class="ulchildlink"><strong><a href="renob.htm">Rename objects</a></strong><br />
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You can use the <span class="cmdname">Rename Object (RNMOBJ)</span> command
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to rename objects. </li>
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<li class="ulchildlink"><strong><a href="cmpdmp.htm">Compress or decompress objects</a></strong><br />
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You can use the <span class="cmdname">Compress Object (CPROBJ)</span> command
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to compress selected objects in order to save disk space on the system or
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you can use the <span class="cmdname">Decompress Object (DCPOBJ)</span> command to decompress
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objects that have been compressed. </li>
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<li class="ulchildlink"><strong><a href="delob.htm">Delete objects</a></strong><br />
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To delete an object, you can use a delete (DLTxxx) command for that type of object or you can use the delete option on the Work with Objects display (shown from the Work with Libraries (WRKLIB) display).</li>
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<li class="ulchildlink"><strong><a href="allor.htm">Allocate resources</a></strong><br />
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Objects are allocated on the system to guarantee integrity and to promote the highest possible degree of concurrency.</li>
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<li class="ulchildlink"><strong><a href="acces.htm">Access objects in CL programs</a></strong><br />
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To access an object from a CL program, the object must be in the specified library when the command that refers to it runs.</li>
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<li class="ulchildlink"><strong><a href="wfile.htm">Work with files in CL procedures</a></strong><br />
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Two types of files are supported in CL procedures and programs: display files and database files.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rbam6clmain.htm">Control language</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="rbam6objects.htm" title="An i5/OS object is a named unit that exists (occupies space) in storage, and on which operations are performed by the operating system. i5/OS objects provide the means through which all data processing information is stored and processed by i5/OS.">Objects</a></div>
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</div>
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<div class="reltasks"><strong>Related tasks</strong><br />
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<div><a href="dalal.htm" title="Locking and allocating a data area helps to ensure that the data area is not accessed by more than one job at a time.">Data area locking and allocation</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="../ifs/rzaaxkickoff.htm">Integrated fie systems</a></div>
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</div>
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</div>
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</body>
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</html>
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