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270
Chapter 2: ColdFusion Tags
cflock
Description
Ensures the integrity of shared data. Instantiates the following kinds of locks:
Exclusive
Allows single-thread access to the CFML constructs in its body. The tag body can be
executed by one request at a time. No other requests can start executing code within the tag while
a request has an exclusive lock. ColdFusion issues exclusive locks on a first-come, first-served
basis.
Read-only
Allows multiple requests to access CFML constructs within the tag body
concurrently. Use a read-only lock only when shared data is read and not modified. If another
request has an exclusive lock on shared data, the new request waits for the exclusive lock to be
released.
Category
Application framework tags
Syntax
<cflock
timeout = "timeout in seconds "
scope = "Application" or "Server" or "Session"
name = "lockname"
throwOnTimeout = "yes" or "no"
type = "readOnly" or "exclusive ">
<!--- CFML to be synchronized --->
</cflock>
See also
cfapplication
,
cfassociate
,
cfmodule
,
Chapter 15, “Using Persistent Data and Locking”
in
ColdFusion MX Developer’s Guide
Содержание COLFUSION MX 7 - INSTALLING AND USING COLDFUSION MX
Страница 1: ...COLDFUSION MX7 CFML Reference...
Страница 20: ...20 Chapter 1 Reserved Words and Variables...
Страница 50: ...50 Chapter 2 ColdFusion Tags cfelse br Searching cfif cfloop cfif...
Страница 101: ...cfdefaultcase 101 cfdefaultcase cfswitch cfoutput Your grade is grade cfoutput...
Страница 115: ...cfdocumentsection 115 cfdocumentsection cfoutput cfdocument...
Страница 311: ...cfNTauthenticate 311 Please Try again H2 cfif cfoutput cfinclude template loginform cfm cfabort cfif cfif cflogin...
Страница 411: ...cftable 411 cftable body html...
Страница 515: ...Chr 515 maxlength 5 p input type Submit name input type RESET cfform...
Страница 605: ...GetEncoding 605 WriteOutput The encoding is theEncoding cfscript cfif...
Страница 629: ...GetProfileString 629 tr td input type Submit name Submit value Submit td td td tr table form...
Страница 655: ...IIf 655 cfoutput IIf Hour Now GTE 12 DE It is afternoon or evening DE It is morning cfoutput b...
Страница 664: ...664 Chapter 3 ColdFusion Functions cfelse h3 Conversion error h3 cfif...
Страница 687: ...IsStruct 687 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 693: ...IsWDDX 693 struct data wddxPacket hr xmp cfoutput packet xmp IsWDDX returns IsWDDX packet br cfoutput...
Страница 751: ...LSDateFormat 751 hr noshade cfoutput cfloop...
Страница 861: ...StructFind 861 cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 869: ...StructIsEmpty 869 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 903: ...Val 903 value Is the beginning numeric name form...
Страница 932: ...932 Chapter 3 ColdFusion Functions...
Страница 944: ...944 Chapter 4 ColdFusion MX Flash Form Style Reference...
Страница 962: ...962 Chapter 5 Application CFC Reference...
Страница 1008: ...1008 Chapter 6 ColdFusion MX Event Gateway Reference cfset retValue Reason reason cfreturn retValue cffunction...
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