Examples of com.sun.xml.internal.txw2.output.XMLWriter

Package com.sun.xml.internal.txw2.output

Examples of com.sun.xml.internal.txw2.output.XMLWriter

com.sun.xml.internal.txw2.TxwException
oo.com/ns/", "foo"); w.endDocument();
The resulting document will look like this:
```
 <?xml version="1.0" standalone="yes"?> <_NS1:foo xmlns:_NS1="http://www.foo.com/ns/"/> 
```
In many cases, document authors will prefer to choose their own prefixes rather than using the (ugly) default names. The XML writer allows two methods for selecting prefixes:
1. the qualified name
2. the {@link #setPrefix setPrefix} method.
Whenever the XML writer finds a new Namespace URI, it checks to see if a qualified (prefixed) name is also available; if so it attempts to use the name's prefix (as long as the prefix is not already in use for another Namespace URI).

Before writing a document, the client can also pre-map a prefix to a Namespace URI with the setPrefix method:
```
 w.setPrefix("http://www.foo.com/ns/", "foo"); w.startDocument(); w.emptyElement("http://www.foo.com/ns/", "foo"); w.endDocument(); 
```
The resulting document will look like this:
```
 <?xml version="1.0" standalone="yes"?> <foo:foo xmlns:foo="http://www.foo.com/ns/"/> 
```
The default Namespace simply uses an empty string as the prefix:
```
 w.setPrefix("http://www.foo.com/ns/", ""); w.startDocument(); w.emptyElement("http://www.foo.com/ns/", "foo"); w.endDocument(); 
```
The resulting document will look like this:
```
 <?xml version="1.0" standalone="yes"?> <foo xmlns="http://www.foo.com/ns/"/> 
```
By default, the XML writer will not declare a Namespace until it is actually used. Sometimes, this approach will create a large number of Namespace declarations, as in the following example:
```
 <xml version="1.0" standalone="yes"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"> <rdf:Description about="http://www.foo.com/ids/books/12345"> <dc:title xmlns:dc="http://www.purl.org/dc/">A Dark Night</dc:title> <dc:creator xmlns:dc="http://www.purl.org/dc/">Jane Smith</dc:title> <dc:date xmlns:dc="http://www.purl.org/dc/">2000-09-09</dc:title> </rdf:Description> </rdf:RDF> 
```
The "rdf" prefix is declared only once, because the RDF Namespace is used by the root element and can be inherited by all of its descendants; the "dc" prefix, on the other hand, is declared three times, because no higher element uses the Namespace. To solve this problem, you can instruct the XML writer to predeclare Namespaces on the root element even if they are not used there:
```
 w.forceNSDecl("http://www.purl.org/dc/"); 
```
Now, the "dc" prefix will be declared on the root element even though it's not needed there, and can be inherited by its descendants:
```
 <xml version="1.0" standalone="yes"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://www.purl.org/dc/"> <rdf:Description about="http://www.foo.com/ids/books/12345"> <dc:title>A Dark Night</dc:title> <dc:creator>Jane Smith</dc:title> <dc:date>2000-09-09</dc:title> </rdf:Description> </rdf:RDF> 
```
This approach is also useful for declaring Namespace prefixes that be used by qualified names appearing in attribute values or character data.
@author David Megginson, david@megginson.com @version 0.2 @since JAXB1.0 @see org.xml.sax.XMLFilter @see org.xml.sax.ContentHandler

                DocumentBuilder db = dbf.newDocumentBuilder();
                Document doc = db.newDocument();
                domResult.setNode(doc);
                serializer = new SaxSerializer(new Dom2SaxAdapter(doc),null,false);
            } catch (ParserConfigurationException pce) {
                throw new TxwException(pce);
            }
        } else {
            serializer = new SaxSerializer(new Dom2SaxAdapter(node),null,false);
        }
    }

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        Element element = _document.createElementNS(namespace, qName);


        if( element==null ) {
            // if so, report an user-friendly error message,
            // rather than dying mysteriously with NPE.
            throw new TxwException("Your DOM provider doesn't support the createElementNS method properly");
        }


        // process namespace bindings
        for( int i=0; i<unprocessedNamespaces.size(); i+=2 ) {
            String prefix = (String)unprocessedNamespaces.get(i+0);

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            try {
                FileOutputStream fos = new FileOutputStream(fileURL);
                autoClose[0] = fos;
                writer = createWriter(fos);
            } catch (IOException e) {
                throw new TxwException(e);
            }
        } else
            throw new IllegalArgumentException();


        // now delegate to the SaxSerializer
        serializer = new SaxSerializer(writer,writer,false) {
            public void endDocument() {
                super.endDocument();
                if(autoClose[0]!=null) {
                    try {
                        autoClose[0].close();
                    } catch (IOException e) {
                        throw new TxwException(e);
                    }
                    autoClose[0] = null;
                }
            }
        };

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    public void flush() {
        serializer.flush();
        try {
            writer.flush();
        } catch (IOException e) {
            throw new TxwException(e);
        }
    }

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    public void startDocument() {
        try {
            writer.startDocument();
        } catch (SAXException e) {
            throw new TxwException(e);
        }
    }

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                    getQName(prefix, localName),
                    attrs);


            attrs.clear();
        } catch (SAXException e) {
            throw new TxwException(e);
        }
    }

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            writer.endElement(elementBindings.pop(), // uri
                    elementBindings.pop(), // localName
                    elementBindings.pop()  // qname
            );
        } catch (SAXException e) {
            throw new TxwException(e);
        }
    }

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    public void text(StringBuilder text) {
        try {
            writer.characters(text.toString().toCharArray(), 0, text.length());
        } catch (SAXException e) {
            throw new TxwException(e);
        }
    }

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        try {
            lexical.startCDATA();
            text(text);
            lexical.endCDATA();
        } catch (SAXException e) {
            throw new TxwException(e);
        }
    }

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            if(lexical==null)
                throw new UnsupportedOperationException("LexicalHandler is needed to write comments");
            else
                lexical.comment(comment.toString().toCharArray(), 0, comment.length() );
        } catch (SAXException e) {
            throw new TxwException(e);
        }
    }

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