Java Doc for AttributeListImpl.java in  » Web-Server » Quadcap-Web-Server » org » xml » sax » helpers » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Server » Quadcap Web Server » org.xml.sax.helpers 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.xml.sax.helpers.AttributeListImpl

AttributeListImpl
public class AttributeListImpl implements AttributeList(Code)
Convenience implementation for AttributeList.

This class provides a convenience implementation of the SAX AttributeList class. This implementation is useful both for SAX parser writers, who can use it to provide attributes to the application, and for SAX application writers, who can use it to create a persistent copy of an element's attribute specifications:

 private AttributeList myatts;
 public void startElement (String name, AttributeList atts)
 {
 // create a persistent copy of the attribute list
 // for use outside this method
 myatts = new AttributeListImpl(atts);
 [...]
 }
 

Please note that SAX parsers are not required to use this class to provide an implementation of AttributeList; it is supplied only as an optional convenience. In particular, parser writers are encouraged to invent more efficient implementations.


author:
   David Megginson (ak117@freenet.carleton.ca)
version:
   1.0
See Also:   org.xml.sax.AttributeList
See Also:   org.xml.sax.DocumentHandler.startElement


Field Summary
 Vectornames
    
 Vectortypes
    
 Vectorvalues
    

Constructor Summary
public  AttributeListImpl()
     Create an empty attribute list.
public  AttributeListImpl(AttributeList atts)
     Construct a persistent copy of an existing attribute list.

Method Summary
public  voidaddAttribute(String name, String type, String value)
     Add an attribute to an attribute list.
public  voidclear()
     Clear the attribute list.

SAX parser writers can use this method to reset the attribute list between DocumentHandler.startElement events.

public  intgetLength()
     Return the number of attributes in the list.
public  StringgetName(int i)
     Get the name of an attribute (by position).
Parameters:
  i - The position of the attribute in the list.
public  StringgetType(int i)
     Get the type of an attribute (by position).
Parameters:
  i - The position of the attribute in the list.
public  StringgetType(String name)
     Get the type of an attribute (by name).
Parameters:
  name - The attribute name.
public  StringgetValue(int i)
     Get the value of an attribute (by position).
Parameters:
  i - The position of the attribute in the list.
public  StringgetValue(String name)
     Get the value of an attribute (by name).
public  voidremoveAttribute(String name)
     Remove an attribute from the list.

SAX application writers can use this method to filter an attribute out of an AttributeList.

public  voidsetAttributeList(AttributeList atts)
     Set the attribute list, discarding previous contents.

Field Detail
names
Vector names(Code)



types
Vector types(Code)



values
Vector values(Code)




Constructor Detail
AttributeListImpl
public AttributeListImpl()(Code)
Create an empty attribute list.

This constructor is most useful for parser writers, who will use it to create a single, reusable attribute list that can be reset with the clear method between elements.


See Also:   AttributeListImpl.addAttribute
See Also:   AttributeListImpl.clear



AttributeListImpl
public AttributeListImpl(AttributeList atts)(Code)
Construct a persistent copy of an existing attribute list.

This constructor is most useful for application writers, who will use it to create a persistent copy of an existing attribute list.


Parameters:
  atts - The attribute list to copy
See Also:   org.xml.sax.DocumentHandler.startElement




Method Detail
addAttribute
public void addAttribute(String name, String type, String value)(Code)
Add an attribute to an attribute list.

This method is provided for SAX parser writers, to allow them to build up an attribute list incrementally before delivering it to the application.


Parameters:
  name - The attribute name.
Parameters:
  type - The attribute type ("NMTOKEN" for an enumeration).
Parameters:
  value - The attribute value (must not be null).
See Also:   AttributeListImpl.removeAttribute
See Also:   org.xml.sax.DocumentHandler.startElement



clear
public void clear()(Code)
Clear the attribute list.

SAX parser writers can use this method to reset the attribute list between DocumentHandler.startElement events. Normally, it will make sense to reuse the same AttributeListImpl object rather than allocating a new one each time.


See Also:   org.xml.sax.DocumentHandler.startElement



getLength
public int getLength()(Code)
Return the number of attributes in the list. The number of attributes in the list.
See Also:   org.xml.sax.AttributeList.getLength



getName
public String getName(int i)(Code)
Get the name of an attribute (by position).
Parameters:
  i - The position of the attribute in the list. The attribute name as a string, or null if thereis no attribute at that position.
See Also:   org.xml.sax.AttributeList.getName(int)



getType
public String getType(int i)(Code)
Get the type of an attribute (by position).
Parameters:
  i - The position of the attribute in the list. The attribute type as a string ("NMTOKEN" for anenumeration, and "CDATA" if no declaration wasread), or null if there is no attribute atthat position.
See Also:   org.xml.sax.AttributeList.getType(int)



getType
public String getType(String name)(Code)
Get the type of an attribute (by name).
Parameters:
  name - The attribute name. The attribute type as a string ("NMTOKEN" for anenumeration, and "CDATA" if no declaration wasread).
See Also:   org.xml.sax.AttributeList.getType(java.lang.String)



getValue
public String getValue(int i)(Code)
Get the value of an attribute (by position).
Parameters:
  i - The position of the attribute in the list. The attribute value as a string, or null ifthere is no attribute at that position.
See Also:   org.xml.sax.AttributeList.getValue(int)



getValue
public String getValue(String name)(Code)
Get the value of an attribute (by name).
Parameters:
  name - The attribute name.
See Also:   org.xml.sax.AttributeList.getValue(java.lang.String)



removeAttribute
public void removeAttribute(String name)(Code)
Remove an attribute from the list.

SAX application writers can use this method to filter an attribute out of an AttributeList. Note that invoking this method will change the length of the attribute list and some of the attribute's indices.

If the requested attribute is not in the list, this is a no-op.


Parameters:
  name - The attribute name.
See Also:   AttributeListImpl.addAttribute



setAttributeList
public void setAttributeList(AttributeList atts)(Code)
Set the attribute list, discarding previous contents.

This method allows an application writer to reuse an attribute list easily.


Parameters:
  atts - The attribute list to copy.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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