Hi,
i am having trouble solving a design problem i'm sure is common,
and wanted some help.
for berevity i'll skim the problem to a smaller example.
I have a design where a base class is called SEGMENT and inheriting from it is FLOW. in SEGMENT i keep a List Of BaseObjects, BaseObject is a Class which FlowObject Inherits From.
the relationship should be:
Segment<---Flow...
koren99
Last Activity: May 29 '08, 04:57 PM
Joined: Aug 8 '07
Location:
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Design problem with List containing class inheritance
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Thanks, your ports were very helpful.
I'll do just that. -
Thanks for the input. its probably what i'll do.
But can you / someone else advise if there is a better approch / design that would fit ?
a design that would not force me to detect which token is being parsed.
this is a problem because the parser contains a tree of tokens created according to the user's input and i need to run the visitor on all of these and i don't want to add logic to detect what type of token i send...Leave a comment:
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Design for parsing and translating into a new syntext
Hi,
I am having problems creating a good model for this.
and i'll appriciate any help.
Req.
1. parse a predefind language such as arethmatic: 4+5-7*9... with abilty to extend / add more implementations in the future
2. be able to translate the object tree created during the parse, into a string / object in a new language (for example, if i parse arethmatic string and have 2 calculator apps, that... -
page life cycle events and dynamic content in gridview
Hello,
I have a gridview that is filled with a datasource & template fields dynamically.
( that has to be done because i ask the user for a datasource)
anyway, i started out creating a static but empty grid. and added the template controls and datasource & activated grid.DataBind() in the page_load event.
that gave me all the info when the page loaded on screen.
now i have... -
A Question about C-Shell (didn't know where else to put it)
Hi,
i'm trying to get run a simple script to find the java version.
this is what i wrote:
#!/bin/csh
set REQUIRED_VERSIO N=1.5
set JAVA=$JAVA_HOME
if ($#JAVA>0) then
set JAVA_EXE=$JAVA/bin/java
$JAVA_EXE -version 2>tmp.ver
set VERSION=`cat tmp.ver | grep "java version"
echo $VERSION
rm tmp.ver
endif... -
how to setup sql server on home pc???
hi,
i'm trying to test a c# program which uses sql server tables, and need to crate a connection and database for this test.
i've installed sql server 2000 enterprise edition, and have client tools. i've tried registering a server and i entered the automatic name that came up "WINDOWSXP" which is the computer name and selected it and it requires a password / user i no nothing of.
so...
1. how... -
design question in c++ classes
Hi,
i'm a student and got an assignment, and was wandering what is the best way to design it, or simply put - what would a skilled programmer do?
here goes: (it's a bit long, so sorry in advance and thank you)
i have to create 2 containers as templates one of Queue and the other of Priority Queue (which is a queue with sorted items)
Oueue has these Methods:
Push - push into back... -
private member access
Hi,
i am just now studing c++ and came across somthing that seemed strange:
i've ran this code:
class ClassA
{
private:
int _value;
public:
ClassA(const int value) : _value(value){ }
// can access private members of val when in the ClassA implementation? ??
ClassA(const ClassA& val) : _value(val._val ue){ }
};
void main()...
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