org.apache.xml.serializer
Class AttributesImplSerializer

java.lang.Object
  |
  +--org.xml.sax.helpers.AttributesImpl
        |
        +--org.apache.xml.serializer.AttributesImplSerializer

public class AttributesImplSerializer

extends AttributesImpl

This class extends org.xml.sax.helpers.AttributesImpl which implements org. xml.sax.Attributes. But for optimization this class adds a Hashtable for faster lookup of an index by qName, which is commonly done in the stream serializer.

See Also:

Attributes

Field Summary

static int

MAX This is the number of attributes before switching to the hash table, and can be tuned, but 12 seems good for now - bjm

Constructor Summary

AttributesImplSerializer()

Method Summary

void	addAttribute(java.lang.String uri, java.lang.String local, java.lang.String qname, java.lang.String type, java.lang.String val) This method adds the attribute, but also records its qName/index pair in the hashtable for fast lookup by getIndex(qName).
void	clear() This method clears the accumulated attributes.
int	getIndex(java.lang.String qname) This method gets the index of an attribute given its qName.
void	setAttributes(Attributes atts) This method sets the attributes, previous attributes are cleared, it also keeps the hashtable up to date for quick lookup via getIndex(qName).

Methods inherited from class org.xml.sax.helpers.AttributesImpl

getIndex, getLength, getLocalName, getQName, getType, getType, getType, getURI, getValue, getValue, getValue, removeAttribute, setAttribute, setLocalName, setQName, setType, setURI, setValue

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MAX

public static final int MAX

This is the number of attributes before switching to the hash table, and can be tuned, but 12 seems good for now - bjm

Constructor Detail

AttributesImplSerializer

public AttributesImplSerializer()

Method Detail

getIndex

public int getIndex(java.lang.String qname)

This method gets the index of an attribute given its qName.

Parameters:

qname - the qualified name of the attribute, e.g. "prefix1:locName1"

Returns:

the integer index of the attribute.

Overrides:

getIndex in class AttributesImpl

See Also:

Attributes.getIndex(String)

addAttribute

public void addAttribute(java.lang.String uri,
                         java.lang.String local,
                         java.lang.String qname,
                         java.lang.String type,
                         java.lang.String val)

This method adds the attribute, but also records its qName/index pair in the hashtable for fast lookup by getIndex(qName).

Parameters:

uri - the URI of the attribute

local - the local name of the attribute

qname - the qualified name of the attribute

type - the type of the attribute

val - the value of the attribute

Overrides:

addAttribute in class AttributesImpl

See Also:

AttributesImpl.addAttribute(String, String, String, String, String), getIndex(String)

clear

public void clear()

This method clears the accumulated attributes.

Overrides:

clear in class AttributesImpl

See Also:

AttributesImpl.clear()

setAttributes

public void setAttributes(Attributes atts)

This method sets the attributes, previous attributes are cleared, it also keeps the hashtable up to date for quick lookup via getIndex(qName).

Parameters:

atts - the attributes to copy into these attributes.

Overrides:

setAttributes in class AttributesImpl

See Also:

AttributesImpl.setAttributes(Attributes), getIndex(String)