help needed in implementing design pattern

[ajos]

Hi friends,
I am trying to implement a factory design pattern.I'm quite confused on how to put it down here.Let me try.I have certain html option containing values like example--->
[HTML]<html:select property="branc h" size="1">
<html:option value="Californ ia"></html:option>
<html:option value="New York"></html:option>
and so on....
[/HTML]
the option value here is lage.so ive been told to implement the factory pattern.I've been searching on google on how to do this,but found no help.I dont know how to start with this n im lost now completely.Can anyone please help me on how to implement the factory pattern with respect to html option values?Any input from you will be helpful and appreciated.... Awaiting your response.
regards,
ajos

[r035198x]

Hi friends,
I am trying to implement a factory design pattern.I'm quite confused on how to put it down here.Let me try.I have certain html option containing values like example--->
[HTML]<html:select property="branc h" size="1">
<html:option value="Californ ia"></html:option>
<html:option value="New York"></html:option>
and so on....
[/HTML]
the option value here is lage.so ive been told to implement the factory pattern.I've been searching on google on how to do this,but found no help.I dont know how to start with this n im lost now completely.Can anyone please help me on how to implement the factory pattern with respect to html option values?Any input from you will be helpful and appreciated.... Awaiting your response.
regards,
ajos

What do you mean by "the option value here is large"?

[ajos]

What do you mean by "the option value here is large"?

i meant that i have lots of html option in my html select like for say...
[HTML]
<html:option value="Californ ia"></html:option>
<html:option value="New york"></html:option>
i have some 20 of them and the code in jsp looks too big because of this.
[/HTML]
this way in each page i have 3 html option tag.so i want to implement the factory pattern.
regards,
ajos

[ajos]

Is it possible to populate the option from a ArrayList.
i have done something like this--->

public ArrayList<String> getSelect()
	{
		
		ArrayList<String> list=new ArrayList<String>();
		
		list.add("California");
		list.add("New York");
		list.add("Dallas");
		list.add("Sydney");
		list.add("tokyo");
		
		return list;
		
	}

how can i populate the values in my jsp's, html option?
regards,
ajos

[r035198x]

Is it possible to populate the option from a ArrayList.
i have done something like this--->

public ArrayList<String> getSelect()
	{
		
		ArrayList<String> list=new ArrayList<String>();
		
		list.add("California");
		list.add("New York");
		list.add("Dallas");
		list.add("Sydney");
		list.add("tokyo");
		
		return list;
		
	}

how can i populate the values in my jsp's, html option?
regards,
ajos

You just use a loop in the JSP

[CODE=java]for(int i = 0; i < list.size(); i++) {
%>
<OPTION value ="<%=list.get(i )%>"><%=list.ge t(i)%> </OPTION>
<%
}
%>
[/CODE]

[ajos]

You just use a loop in the JSP

[CODE=java]for(int i = 0; i < list.size(); i++) {
%>
<OPTION value ="<%=list.get(i )%>"><%=list.ge t(i)%> </OPTION>
<%
}
%>
[/CODE]

but my arraylist that i've created is in my class,so how can i write this directly in my jsp page.im getting list is not resolved to a type.
regards,
ajos

[r035198x]

but my arraylist that i've created is in my class,so how can i write this directly in my jsp page.im getting list is not resolved to a type.
regards,
ajos

Of course you'll have to pass that list to the JSP somehow.
Can you access that class from the JSP? Just make the getSelect method static and then it's just a simple
[CODE=java]ArrayList<list> list = ClassName.getSe lect();[/CODE]

[ajos]

Of course you'll have to pass that list to the JSP somehow.
Can you access that class from the JSP? Just make the getSelect method static and then it's just a simple
[CODE=java]ArrayList<list> list = ClassName.getSe lect();[/CODE]

[HTML]
<% ArrayList<Strin g> list = SelectFactory.g etSelect(); %>
<%for(int i=0; i < list.size(); i++); %>
<%{ %>
<OPTION value ="<%=list.get(i )%>"><%=list.ge t(i)%> </OPTION>
//its saying i cannot be resolved
<%} %>

[/HTML]

[r035198x]

[HTML]
<% ArrayList<Strin g> list = SelectFactory.g etSelect(); %>
<%for(int i=0; i < list.size(); i++); %>
<%{ %>
<OPTION value ="<%=list.get(i )%>"><%=list.ge t(i)%> </OPTION>
//its saying i cannot be resolved
<%} %>

[/HTML]

You did not copy properly the code I posted above.
That means you are not trying to understand what I'm posting. That is not very good at all ...

[ajos]

You did not copy properly the code I posted above.
That means you are not trying to understand what I'm posting. That is not very good at all ...

Im sorry...i think im missing the point here. my arraylist is returning the type as string thats why i did it
ArrayList<Strin g>....
the rest of the part i followed your advice.

[r035198x]

Im sorry...i think im missing the point here. my arraylist is returning the type as string thats why i did it
ArrayList<Strin g>....
the rest of the part i followed your advice.

That part is fine. You corrected my mistake fine. It's the for loop that you failed to copy correctly

[ajos]

That part is fine. You corrected my mistake fine. It's the for loop that you failed to copy correctly

ya i gave it a extra ; there.but still i get the same error i not resolved to a type.

An error occurred at line: 60 in the jsp file: /pages/admin/addbdgt.jsp
i cannot be resolved
57:   <% ArrayList<String> list = SelectFactory.getSelect(); %>
58: <%for(int i=0; i < list.size(); i++) %>
59: <%{ %>
60: <OPTION value ="<%=list.get(i)%>"> <%=list.get(i)%> </OPTION>
61: <%} %>
62:   
63:   <tr>

[ajos]

is it possible with <html:optionCol lection> coz i want to populate the values in it?
regards,
ajos

[r035198x]

What happens when you have the code like this

[CODE=java]<%
ArrayList<Strin g> list = SelectFactory.g etSelect();
for(int i=0; i < list.size(); i++) {

%>
<OPTION value ="<%=list.get(i )%>"> <%=list.get(i)% >
<%
}
%>
[/CODE]

[ajos]

What happens when you have the code like this

[CODE=java]<%
ArrayList<Strin g> list = SelectFactory.g etSelect();
for(int i=0; i < list.size(); i++) {

%>
<OPTION value ="<%=list.get(i )%>"> <%=list.get(i)% >
<%
}
%>
[/CODE]

due to some strange reason the values are getting printed.but not on my <option> tag but on my jsp display.why is it not getting displayed on the select tag?