AlwaysThrowsHandler<DataObj, ParamObj>


Category: functors	Component type: concept

Description

A AlwaysHandler is an IOHandler function object that is called when exceptions are thrown in DB_iterator operations. This handler simply tells the caller to throw the exception (dtl_ios_base::THROW_EXCEPTION).

Definition

Defined in the DBView.h header file.

Associated types

LoggingHandler, IOHandler.

Public Base Classes

None.

Template parameters

Parameter	Description	Default
`DataObj`	The value type of objects in a DBView.
`ParamObj`	The type of object used to specify the postfix parameters to the DBView.	DefaultParamObj<DataObj>

Notation

`X`	A type that is a model of AlwaysThrowsHandler
`a`	Object of type `X`

Expression semantics

Name	Expression	Semantics
Default constructor	X a()	Construct the function object.
Copy constructor	X a(constX &b)	Copy construct the AlwaysThrowsHandler.
Assignment Operator	X operator=(const X &b)	Assign the AlwaysThrowsHandler.
Throw exception operator	dtl_ios_base::MeansOfRecovery operator()(RootException &ex, dtl_ios_base &base, DataObj &data, ParamObj &params)	This operator takes references to the thrown RootException object, the dtl_ios_base (iterator) which threw, and the DataObj and ParamObj relevant to the exception. Tells the iterator to throw the exception (dtl_ios_base::THROW_EXCEPTION).