Opening a Library Catalog.

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Author:	Freedman, Maurice J.
Format:	Recurso educativo Open Access
Language:	en
Published:	1979
Subjects:	Catalogs Computer Output Microfilm Databases Information Retrieval Libraries Library Automation Library Services Reference Services Technological Advancement
Online Access:	Acceder al recurso
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Communications.
by: Lukac, Jenco, et al.
Published: (1981)

Library Automation: An Overview.
by: Saffady, William
Published: (1989)

Will Microfilm and Computers Replace Clippings?
by: Oppendahl, Alison, et al.
Published: (1974)

Computer Output Microform Library Catalog: A Survey.
by: Zink, Steven D.
Published: (1977)

A Computer Output Microfilm Serials List for Patron Use
by: Saffady, William
Published: (1974)

On My Mind...Reactions to a COM Catalog
by: Altman, Ellen
Published: (1977)

Card Catalog to COM
by: North, John
Published: (1977)

COM: Decisions and Applications in a Small University Library.
by: Schwarz, Philip J.
Published: (1976)

Management Decisions and the COM Catalog.
by: Schwarz, Philip J.
Published: (1982)

Administrative and Bibliographic Uses of COM (Computer Output Microfilm) in an Academic Library.
by: Gillham, Virginia, et al.
Published: (1976)

Computer Applications in the United Aircraft Corporation Library System
by: Neufeld, I. H.
Published: (1973)

Integrating Local Databases with Remote Files, Print Materials and Reference Services.
by: Pope, Nolan F.
Published: (1982)

The Rudolph Machine.
by: Wellisch, Hans H.
Published: (1981)

Technology and the Modern Library.
by: Boss, Richard W.
Published: (1984)

Library Data Processing Feasibility Report.
by: Mears, M. J., et al.
Published: (1971)

Information Systems--New Partners
by: Harmon, George H.
Published: (1970)

Bibliographic Access to Full Descriptive Cataloging with COM
by: Wassom, Earl E., et al.
Published: (1978)

Is There A Catalog in Your Future? Access to Information in the Year 2006.
by: Williamson, Nancy J.
Published: (1982)

In the Iron Age of Cataloging.
by: Van Houten, Stephen
Published: (1981)

RECON Pilot Project. Final Report.
by: Avram, Henriette D.
Published: (1972)

A System for Retrospective Conversion.
by: Epstein, Hank
Published: (1984)

Microform Developments Related to Acquisitions
by: Sullivan, Robert C.
Published: (1973)

Card Catalogs: Alternative Futures. A Selected Bibliography on Closing Card Catalogs and Alternative Catalog Formats with Separate Sections on AACR 2 and PRECIS.
by: Abbott, George L., Comp.
Published: (1979)

Micrographic Systems.
by: Costigan, Daniel M.
Published: (1975)

U.C.L.A. Working Group on Public Catalogs. Appendix II. Subgroup II; Interim Report: Long Term Goals, Alternatives.
Published: (1975)

The ALL-OUT Library; A Design for Computer-Powered, Multidimensional Services.
by: Sleeth, Jim, et al.
Published: (1983)

A Study of Data Elements for the COM Catalog.
by: Chwe, Steven Seokho
Published: (1979)

The Impact of COM Statewide Union Catalogs on Resource Sharing.
by: Breedlove, Elizabeth Ann
Published: (1981)

Descriptive Cataloging in 1980.
by: Rinehart, Constance
Published: (1981)

The Display Medium and the Price of the Message
by: Malinconico, S. Michael
Published: (1976)

Interlibrary Lending with Computerized Union Catalogues.
by: Lehmann, Klaus-Dieter
Published: (1979)

Microform Catalogs: A Viable Alternative for Texas Libraries.
by: Cox, Carolyn, M., et al.
Published: (1977)

The Use of Microforms in Academic Reference Collections and Services
by: Hernon, Peter
Published: (1977)

Federal Depository Library System.
by: Hoduski, Bernadine E. Abbott
Published: (1980)

Is the Card Catalogue's Unquestioned Sway in North America Ending?
by: Elrod, J. McRee
Published: (1976)

The Use of Microfilm in Relation to the Retrospective and Prospective Catalogs of the Research Libraries of the New York Public Library: A Report to the Council on Library Resources (CLR Grant No. 516).
Published: (1972)

The Miracle of Microfilm: The Foundation of the Largest Genealogical Record Collection in the World.
by: Powell, Ted F.
Published: (1985)

The NCPL [Natrona County, Wyoming Public Library] Scene 1980; Script for Video Tape.
Published: (1974)

Cost/Benefit Analysis of a Catalog System for the Virginia Beach Department of Public Libraries.
Published: (1978)

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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