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Posted to dev@xmlbeans.apache.org by "Dmitri Colebatch (JIRA)" <xm...@xml.apache.org> on 2006/04/18 08:08:19 UTC

[jira] Created: (XMLBEANS-267) toFirstAttribute/toNextAttribute doesn't work

toFirstAttribute/toNextAttribute doesn't work
---------------------------------------------

         Key: XMLBEANS-267
         URL: http://issues.apache.org/jira/browse/XMLBEANS-267
     Project: XMLBeans
        Type: Bug

  Components: XmlObject  
    Versions: Version 2.1    
 Environment: Windows XP, Intel, Sun JRE 1.5.0_04
    Reporter: Dmitri Colebatch


Either I'm misinterpreting the expected usage of toNextAttribute, or it simply doesn't work.  Here's my test code:

	public static void main(String[] args) throws Exception
	{
		XmlObject xml = XmlObject.Factory.parse(new StringReader("<foo a=\"x\"><bar>test</bar></foo>"));
		XmlCursor cursor = xml.newCursor();
		boolean found = cursor.toFirstAttribute();
		System.out.println("found attribute: " + found);
	}

And it outputs:

	found attribute: false

I'm assuming this is a bug as the javadoc implies this should work.


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[jira] Commented: (XMLBEANS-267) toFirstAttribute/toNextAttribute doesn't work

Posted by "Dmitri Colebatch (JIRA)" <xm...@xml.apache.org>.
    [ http://issues.apache.org/jira/browse/XMLBEANS-267?page=comments#action_12375008 ] 

Dmitri Colebatch commented on XMLBEANS-267:
-------------------------------------------

Thanks Cezar - while you're in there, I might add another comment.  I was after a method to extract the attributes from a cursor and have this:

	private static Map extractAttributes(XmlCursor cursor)
	{
		Bookmark bookmark = new Bookmark();
		cursor.setBookmark(bookmark);
		if (cursor.isStartdoc())
			cursor.toNextToken();

		Map attributes = new HashMap();
		if (cursor.toFirstAttribute())
		{
			do
				attributes.put(cursor.getName(), cursor.getTextValue());
			while (cursor.toNextAttribute());
		}

		cursor.toBookmark(bookmark);
		return attributes;
	}

The part I found curious was that I had to call toFirstAttribute before calling toNextAttribute, which I can understand, but it doesn't really provide for what I would imagine would be the typical usage pattern.  It might be worth adding a comment on this in the javadoc as well.

> toFirstAttribute/toNextAttribute doesn't work
> ---------------------------------------------
>
>          Key: XMLBEANS-267
>          URL: http://issues.apache.org/jira/browse/XMLBEANS-267
>      Project: XMLBeans
>         Type: Bug

>   Components: XmlObject
>     Versions: Version 2.1
>  Environment: Windows XP, Intel, Sun JRE 1.5.0_04
>     Reporter: Dmitri Colebatch

>
> Either I'm misinterpreting the expected usage of toNextAttribute, or it simply doesn't work.  Here's my test code:
> 	public static void main(String[] args) throws Exception
> 	{
> 		XmlObject xml = XmlObject.Factory.parse(new StringReader("<foo a=\"x\"><bar>test</bar></foo>"));
> 		XmlCursor cursor = xml.newCursor();
> 		boolean found = cursor.toFirstAttribute();
> 		System.out.println("found attribute: " + found);
> 	}
> And it outputs:
> 	found attribute: false
> I'm assuming this is a bug as the javadoc implies this should work.

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[jira] Closed: (XMLBEANS-267) toFirstAttribute/toNextAttribute doesn't work

Posted by "Cezar Andrei (JIRA)" <xm...@xml.apache.org>.
     [ http://issues.apache.org/jira/browse/XMLBEANS-267?page=all ]
     
Cezar Andrei closed XMLBEANS-267:
---------------------------------

    Resolution: Fixed

The method XmlCuresor.toFirstAttribute() works from two states:
1. on START - goes to the first attribute of that element if one exists
2. on STARTDOC - goes to the first top level attribute of a document fragment - if STARTDOC is a docfrag and a top level attribute exists.

I'll add this comment to the java doc.

> toFirstAttribute/toNextAttribute doesn't work
> ---------------------------------------------
>
>          Key: XMLBEANS-267
>          URL: http://issues.apache.org/jira/browse/XMLBEANS-267
>      Project: XMLBeans
>         Type: Bug

>   Components: XmlObject
>     Versions: Version 2.1
>  Environment: Windows XP, Intel, Sun JRE 1.5.0_04
>     Reporter: Dmitri Colebatch

>
> Either I'm misinterpreting the expected usage of toNextAttribute, or it simply doesn't work.  Here's my test code:
> 	public static void main(String[] args) throws Exception
> 	{
> 		XmlObject xml = XmlObject.Factory.parse(new StringReader("<foo a=\"x\"><bar>test</bar></foo>"));
> 		XmlCursor cursor = xml.newCursor();
> 		boolean found = cursor.toFirstAttribute();
> 		System.out.println("found attribute: " + found);
> 	}
> And it outputs:
> 	found attribute: false
> I'm assuming this is a bug as the javadoc implies this should work.

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