Macromedia coldfusion 4.5-cfml language reference ユーザーズマニュアル
218
CFML Language Reference
CFTHROW
The CFTHROW tag raises a developer-specified exception that can be caught with
CFCATCH tag having any of the following type specifications:
CFCATCH tag having any of the following type specifications:
•
CFCATCH TYPE= "custom_type "
•
CFCATCH TYPE= "APPLICATION "
•
CFCATCH TYPE= "ANY "
Syntax
<CFTHROW
TYPE= "exception_type "
MESSAGE="message"
DETAIL= "detail_description "
ERRORCODE= "error_code "
EXTENDEDINFO= "additional_information ">
MESSAGE="message"
DETAIL= "detail_description "
ERRORCODE= "error_code "
EXTENDEDINFO= "additional_information ">
TYPE
Optional. A custom type or the predefined type APPLICATION. None of the other
predefined types should be specified because these types are not generated by
ColdFusion applications. If you specify the exception type APPLICATION, you
need not specify a type for CFCATCH, because the APPLICATION type is the
default CFCATCH type.
predefined types should be specified because these types are not generated by
ColdFusion applications. If you specify the exception type APPLICATION, you
need not specify a type for CFCATCH, because the APPLICATION type is the
default CFCATCH type.
MESSAGE
Optional. A message that describes the exceptional event.
DETAIL
Optional. A detailed description of the event. The ColdFusion server appends the
position of the error to this description; the server uses this parameter if an error is
not caught by your code.
position of the error to this description; the server uses this parameter if an error is
not caught by your code.
ERRORCODE
Optional. A custom error code that you supply.
EXTENDEDINFO
Optional. A custom error code that you supply.
Usage
Use CFTHROW within a
CFTRY
block to raise an error condition.The CFCATCH block
can access any accompanying information as follows:
•
Message with CFCATCH.message
•
Detail with CFCATCH.detail
•
Error code with CFCATCH.errorcode.
•
To get additional information, use CFCATCH.TagContext. TagContext captures
the context of the exception; that is, the name and position of each tag in the
tag stack, and the full path names of the files that contain the tags in the tag
stack.
the context of the exception; that is, the name and position of each tag in the
tag stack, and the full path names of the files that contain the tags in the tag
stack.