Description

Rethrows the currently active exception. Preserves the exception's cfcatch.type and cfcatch.tagContext variable values.

Category

Syntax

<cfrethrow>

See also

cferrorcfthrowcftryHandling runtime exceptions with ColdFusion tags in the Developing ColdFusion Applications

Usage

Use this tag within a cfcatch block. This tag is useful in error handling code, if the error handler cannot handle an error that it catches. For example, if cfcatch type = "any" gets a DATABASE exception, and the code is designed to handle only CFX exceptions, the handler raises the exceptions again, with details intact, so that a higher-level handler can process the error information. If you used the cfthrow tag, the type and details of the original exception would be lost.

Example

<h3>cfrethrow Example</h3> 
<!--- Rethrow a DATABASE exception. ---> 
<cftry> 
<cftry> 
<cfquery name = "GetMessages" dataSource = "cfdocexamples"> 
SELECT* 
FROM Messages 
</cfquery> 
<cfcatch type = "DATABASE"> 
<!--- If database signalled a 50555 error, ignore; otherwise, rethrow 
exception. ---> 
<cfif cfcatch.sqlstate neq 50555> 
<cfrethrow> 
</cfif> 
</cfcatch> 
</cftry> 
<cfcatch> 
<h3>Sorry, this request can't be completed</h3> 
<h4>Catch variables</h4> 
<cfoutput> 
<cfloop collection = #cfcatch# item = "c"> 
<br> 
<cfif IsSimpleValue(cfcatch[c])>#c# = #cfcatch[c]# 
</cfif> 
</cfloop> 
</cfoutput> 
</cfcatch> 
</cftry>

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