This extension helper class extends the org.xml.sax.helpers.AttributesImpl class to make it implement the Attributes2 interface.

Figure 22-8. org.xml.sax.ext.Attributes2Impl

public class Attributes2Impl extends org.xml.sax.helpers.AttributesImpl 
        implements Attributes2 {
// Public Constructors
     public Attributes2Impl( );  
     public Attributes2Impl(org.xml.sax.Attributes atts);  
// Public Instance Methods
     public void setDeclared(int index, boolean value);  
     public void setSpecified(int index, boolean value);  
// Methods Implementing Attributes2
     public boolean isDeclared(String qName);  
     public boolean isDeclared(int index);  
     public boolean isDeclared(String uri, String localName);  
     public boolean isSpecified(String qName);  
     public boolean isSpecified(int index);  
     public boolean isSpecified(String uri, String localName);  
// Public Methods Overriding AttributesImpl
     public void addAttribute(String uri, String localName, String qName, String type, 
        String value);  
     public void removeAttribute(int index);  
     public void setAttributes(org.xml.sax.Attributes atts);  
}