Examples of com.sun.xml.bind.marshaller.XMLWriter

com.sun.xml.bind.marshaller.XMLWriter
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
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).

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


        assert toBeFlushed==null;
        toBeFlushed = w;


        CharacterEscapeHandler ceh = createEscapeHandler(encoding);
        XMLWriter xw;


        if(isFormattedOutput()) {
            DataWriter d = new DataWriter(w,encoding,ceh);
            d.setIndentStep(indent);
            xw=d;
        } else
            xw = new XMLWriter(w,encoding,ceh);


        xw.setXmlDecl(!isFragment());
        xw.setHeader(header);
        return new SAXOutput(xw);   // TODO: don't we need a better writer?
    }

View Full Code Here


        assert toBeFlushed==null;
        toBeFlushed = w;


        CharacterEscapeHandler ceh = createEscapeHandler(encoding);
        XMLWriter xw;


        if(isFormattedOutput()) {
            DataWriter d = new DataWriter(w,encoding,ceh);
            d.setIndentStep(indent);
            xw=d;
        } else
            xw = new XMLWriter(w,encoding,ceh);


        xw.setXmlDecl(!isFragment());
        xw.setHeader(header);
        return new SAXOutput(xw);   // TODO: don't we need a better writer?
    }

View Full Code Here


            return;
        }
        if (result instanceof StreamResult) {
            StreamResult sr = (StreamResult) result;
            XMLWriter w = null;


            if (sr.getWriter() != null)
                w = createWriter(sr.getWriter());
            else if (sr.getOutputStream() != null)
                w = createWriter(sr.getOutputStream());

View Full Code Here

        
        // buffering improves the performance
        w = new BufferedWriter(w);
        
        CharacterEscapeHandler ceh = createEscapeHandler(encoding);
        XMLWriter xw;
        
        if(isFormattedOutput()) {
            DataWriter d = new DataWriter(w,encoding,ceh);
            d.setIndentStep(indent);
            xw=d;
        } 
        else
            xw = new XMLWriter(w,encoding,ceh);
            
        xw.setXmlDecl(printXmlDeclaration);
        xw.setHeader(header);
        return xw;
    }

View Full Code Here


            return;
        }
        if (result instanceof StreamResult) {
            StreamResult sr = (StreamResult) result;
            XMLWriter w = null;


            if (sr.getWriter() != null)
                w = createWriter(sr.getWriter());
            else if (sr.getOutputStream() != null)
                w = createWriter(sr.getOutputStream());

View Full Code Here

        
        // buffering improves the performance
        w = new BufferedWriter(w);
        
        CharacterEscapeHandler ceh = createEscapeHandler(encoding);
        XMLWriter xw;
        
        if(isFormattedOutput()) {
            DataWriter d = new DataWriter(w,encoding,ceh);
            d.setIndentStep(indent);
            xw=d;
        } 
        else
            xw = new XMLWriter(w,encoding,ceh);
            
        xw.setXmlDecl(printXmlDeclaration);
        xw.setHeader(header);
        return xw;
    }

View Full Code Here

/*     */     }
/* 407 */     assert (this.toBeFlushed == null);
/* 408 */     this.toBeFlushed = w;
/*     */ 
/* 410 */     CharacterEscapeHandler ceh = createEscapeHandler(encoding);
/*     */     XMLWriter xw;
/*     */     XMLWriter xw;
/* 413 */     if (isFormattedOutput()) {
/* 414 */       DataWriter d = new DataWriter(w, encoding, ceh);
/* 415 */       d.setIndentStep(this.indent);
/* 416 */       xw = d;
/*     */     } else {
/* 418 */       xw = new XMLWriter(w, encoding, ceh);
/*     */     }
/* 420 */     xw.setXmlDecl(!isFragment());
/* 421 */     xw.setHeader(this.header);
/* 422 */     return new SAXOutput(xw);
/*     */   }

View Full Code Here


        assert toBeFlushed==null;
        toBeFlushed = w;


        CharacterEscapeHandler ceh = createEscapeHandler(encoding);
        XMLWriter xw;


        if(isFormattedOutput()) {
            DataWriter d = new DataWriter(w,encoding,ceh);
            d.setIndentStep(indent);
            xw=d;
        } else
            xw = new XMLWriter(w,encoding,ceh);


        xw.setXmlDecl(!isFragment());
        xw.setHeader(header);
        return new SAXOutput(xw);   // TODO: don't we need a better writer?
    }

View Full Code Here


            return;
        }
        if (result instanceof StreamResult) {
            StreamResult sr = (StreamResult) result;
            XMLWriter w = null;


            if (sr.getWriter() != null)
                w = createWriter(sr.getWriter());
            else if (sr.getOutputStream() != null)
                w = createWriter(sr.getOutputStream());

View Full Code Here

            DataWriter d = new DataWriter(w,encoding,ceh);
            d.setIndentStep(indent);
            return d;
        } 
        else
            return new XMLWriter(w,encoding,ceh);
    }

View Full Code Here

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