14 replies to this topic

[toto_7]

Hello,

I need some help with this. Until now i know how to add in XML from JSP but i have never try before to edit an XML file. More specific, i would like to decrease <number>...</number> tag any time submit button is pressed.
thank you

[wim DC]

You should be able to do setTextContent(..) on the node your evaluate method returns, see Change a particular node in XML : DOM Edit « XML « Java

[toto_7]

Is possible to do it at the same Manager class, or i have to create new class?

Edit: The element that i want to change is an integer type, and my goal is each time corresponding item has been selected, its quantity decrease by 1. There is any other method instead of getTextContent()?

[wim DC]

Not really something useful: Node (Java 2 Platform SE 5.0)

Just do

int currentValue = Integer.parseInt( node.getTextContent() );

node.setTextContent(currentValue -1);

And going to bed now.

[toto_7]

Very helpfull thank you.

Just to see if i become good student
to compile the quantity of current item

//shop/category/items[name=='getName()']/quantity

right???

[wim DC]

If you're xml looks like:

...possible other tags before

<shop>

  <category>

    <items>

      <name>

      <quantity>

yes.

[toto_7]

EDIT

Now the problem is not those methods, but

.setTextContent(int-1);

says cannot applied to (int). Tried

.setTextContent((int-1).toString());

but says int cannot be dereferenced.

[wim DC]

I think that's because int has no toString method (every class that doesn't begin with a capital letter has no methods - primitive class in Java)
Just do +""

.setTextContent((int-1) +"");

[toto_7]

I tried

Integer.toString(int-1)

and is working :). Page is working fine if i have for example

shop/category/items[name='APPLES']/quantity

each time apples added to the cart XML decreased by one, but how i will achieve to do it for all items?

for(int i=0; i<purchase.size(); i++){

	Purchase dlPurchase = (Purchase) purchase.get(i);

        .

        .

        shop/category/items[name='"+dlPurchase.getName()+"']/quantity

.....

}

Tried the above but nothing happen

[toto_7]

It is never get in the for loop..:S strange

[wim DC]

Then it's simple, purchase is empty :P

[toto_7]

ohh im so stupid... i had clearAll() before decrease() grr :s