IError

Namespace

ZCore

INTERFACE IError

This interface should be implemented by all objects that might have errors. The methods of this interface allow to inspect the error description, error code (...) of said object.

Properties

Error

PROPERTY Error : BOOL

Property Value

BOOL

Methods

ErrorId

METHOD ErrorId () : UDINT

Returns the error code of the first error source for this object. The method recursively goes down the error stack until the initial source of error of this object can be found. For performance reasons, the error stack is not cleared when the error state is reset. So this method should always used in conjunction with Error.

Returns

UDINT

ErrorMessage

METHOD ErrorMessage () : ZString

Returns the error description of the first error source for this object. The method recursively goes down the error stack until the initial source of error of this object can be found. For performance reasons, the error stack is not cleared when the error state is reset. So this method should always used in conjunction with Error.

Returns

ZString

ErrorSource

METHOD ErrorSource () : IError

This method returns the direct error source of this object. This method can then be used to retrieve the actual error source by using the method of the returned IError.

Returns

IError

TraceErrorStack

METHOD TraceErrorStack (
 [input] trace : IErrorTrace)

This method is used internally when recording an error trace.

Inputs

trace IErrorTrace