Reading Attributes

<< XMLStreamReader Methods | Writing XML Streams >>

TREAMING

API

FOR

XML

XMLEventReader provides four methods for iteratively parsing XML streams:

next()

Returns the next event in the stream

nextEvent()

Returns the next typed XMLEvent

hasNext()

Returns true if there are more events to process in the stream

peek()

Returns the event but does not iterate to the next event

For example, the following code snippet illustrates the

XMLEventReader

method

declarations:

package javax.xml.stream;
import java.util.Iterator;
public interface XMLEventReader extends Iterator {

public Object next();
public XMLEvent nextEvent() throws XMLStreamException;
public boolean hasNext();
public XMLEvent peek() throws XMLStreamException;

...
}

To read all events on a stream and then print them, you could use the following:

while(stream.hasNext()) {
XMLEvent event = stream.nextEvent();
System.out.print(event);
}

Reading Attributes

You can access attributes from their associated

javax.xml.stream.StartEle-

ment

, as follows:

public interface StartElement extends XMLEvent {

public Attribute getAttributeByName(QName name);
public Iterator getAttributes();

}

You can use the

getAttributes()

method on the

StartElement

interface to use

Iterator

over all the attributes declared on that

StartElement

Reading Namespaces

Similar to reading attributes, namespaces are read using an

Iterator

created by

calling the

getNamespaces()

method on the

StartElement

interface. Only the

namespace for the current

StartElement

is returned, and an application can get