Iterating a Java HashMap in an XSLT file.

WilliamYou · November 16th, 2012, 12:02 PM

Hello,

The first thing I should ask is is this possible?

I am using Extensions (Saxon-B) and I have a HashMap

Code:

Map < String, Double > myList = new HashMap< String, Double >() ;
...

that I want to iterate over in an XSL template to create a series of attributes with values, with the key being the attribute name and the value being it's value.

Your help would be appreciated.
--
William

bonekrusher · November 16th, 2012, 09:21 PM

Yes, this is possible. Your HashMap is static, so you can create static java method that excepts the "key" as a parameter and returns the "value".

Code:

public static Map < String, Double > myList = new HashMap< String, Double >() ;
public static String getValue(String key){

 // do the work

}

WilliamYou · November 17th, 2012, 06:34 AM

Quote:

Originally Posted by bonekrusher

Yes, this is possible. Your HashMap is static, so you can create static java method that excepts the "key" as a parameter and returns the "value".

Code:

public static Map < String, Double > myList = new HashMap< String, Double >() ;
public static String getValue(String key){

 // do the work

}

Hello,

Thanks for that but sadly this approach does not work for me as I do not know the key values. The values are known but only as an attributeGroup in the Schema, so I have no way of knowing what or how many values are included in the map.

For what it's worth I could have got the same effect by importing java.util.Map and using it's get() method, but I need a solution that allows me to iterate the map so I can extract both the key's value (i.e. name) and the Double value assigned to it.

--
William

bonekrusher · November 17th, 2012, 08:42 AM

See http://stackoverflow.com/questions/1...hrough-hashmap on how to iterate over a hashmap for both keys and values...

WilliamYou · November 17th, 2012, 09:35 AM

Quote:

Originally Posted by bonekrusher

See http://stackoverflow.com/questions/1...hrough-hashmap on how to iterate over a hashmap for both keys and values...

I think we are at cross purposes here. I want to do this in a Transformation XSLT template document using xslt / xpath.

bonekrusher · November 17th, 2012, 10:38 AM

Hi William,

You can when you use extensions. If you are using Saxon, which is a XSLT Processor written in Java, you can write java extensions.

WilliamYou · November 17th, 2012, 10:43 AM

Quote:

Originally Posted by bonekrusher

Hi William,

You can when you use extensions. If you are using Saxon, which is a XSLT Processor written in Java, you can write java extensions.

Thanks bonekrusher.

This exactly what I am doing as the original post states. So are you saying with the correct imports (via namespaces) I can do this in XSLT just like in Java?

WilliamYou · November 19th, 2012, 09:56 AM

Hi, with a few tweaks here (Java) and there (XSLT) I now have this working. Thanks.

--
William