Android
org.xml.sax.helpers
public class

org.xml.sax.helpers.AttributesImpl

java.lang.Object
org.xml.sax.helpers.AttributesImpl Attributes

Default implementation of the Attributes interface.

This module, both source code and documentation, is in the Public Domain, and comes with NO WARRANTY. See http://www.saxproject.org for further information.

This class provides a default implementation of the SAX2 Attributes interface, with the addition of manipulators so that the list can be modified or reused.

There are two typical uses of this class:

  1. to take a persistent snapshot of an Attributes object in a startElement event; or
  2. to construct or modify an Attributes object in a SAX2 driver or filter.

This class replaces the now-deprecated SAX1 AttributeListImpl class; in addition to supporting the updated Attributes interface rather than the deprecated AttributeList interface, it also includes a much more efficient implementation using a single array rather than a set of Vectors.

Known Direct Subclasses

Summary

Public Constructors

            AttributesImpl()
Construct a new, empty AttributesImpl object.
            AttributesImpl(Attributes atts)
Copy an existing Attributes object.

Public Methods

          void  addAttribute(String uri, String localName, String qName, String type, String value)
Add an attribute to the end of the list.
          void  clear()
Clear the attribute list for reuse.
          int  getIndex(String qName)
Look up an attribute's index by qualified (prefixed) name.
          int  getIndex(String uri, String localName)
Look up an attribute's index by Namespace name.
          int  getLength()
Return the number of attributes in the list.
          String  getLocalName(int index)
Return an attribute's local name.
          String  getQName(int index)
Return an attribute's qualified (prefixed) name.
          String  getType(int index)
Return an attribute's type by index.
          String  getType(String uri, String localName)
Look up an attribute's type by Namespace-qualified name.
          String  getType(String qName)
Look up an attribute's type by qualified (prefixed) name.
          String  getURI(int index)
Return an attribute's Namespace URI.
          String  getValue(int index)
Return an attribute's value by index.
          String  getValue(String qName)
Look up an attribute's value by qualified (prefixed) name.
          String  getValue(String uri, String localName)
Look up an attribute's value by Namespace-qualified name.
          void  removeAttribute(int index)
Remove an attribute from the list.
          void  setAttribute(int index, String uri, String localName, String qName, String type, String value)
Set an attribute in the list.
          void  setAttributes(Attributes atts)
Copy an entire Attributes object.
          void  setLocalName(int index, String localName)
Set the local name of a specific attribute.
          void  setQName(int index, String qName)
Set the qualified name of a specific attribute.
          void  setType(int index, String type)
Set the type of a specific attribute.
          void  setURI(int index, String uri)
Set the Namespace URI of a specific attribute.
          void  setValue(int index, String value)
Set the value of a specific attribute.
Methods inherited from class java.lang.Object
Methods inherited from interface org.xml.sax.Attributes

Details

Public Constructors

public AttributesImpl()

Construct a new, empty AttributesImpl object.

public AttributesImpl(Attributes atts)

Copy an existing Attributes object.

This constructor is especially useful inside a startElement event.

Parameters

atts The existing Attributes object.

Public Methods

public void addAttribute(String uri, String localName, String qName, String type, String value)

Add an attribute to the end of the list.

For the sake of speed, this method does no checking to see if the attribute is already in the list: that is the responsibility of the application.

Parameters

uri The Namespace URI, or the empty string if none is available or Namespace processing is not being performed.
localName The local name, or the empty string if Namespace processing is not being performed.
qName The qualified (prefixed) name, or the empty string if qualified names are not available.
type The attribute type as a string.
value The attribute value.

public void clear()

Clear the attribute list for reuse.

Note that little memory is freed by this call: the current array is kept so it can be reused.

public int getIndex(String qName)

Look up an attribute's index by qualified (prefixed) name.

Parameters

qName The qualified name.

Returns

  • The attribute's index, or -1 if none matches.

public int getIndex(String uri, String localName)

Look up an attribute's index by Namespace name.

In many cases, it will be more efficient to look up the name once and use the index query methods rather than using the name query methods repeatedly.

Parameters

uri The attribute's Namespace URI, or the empty string if none is available.
localName The attribute's local name.

Returns

  • The attribute's index, or -1 if none matches.

public int getLength()

Return the number of attributes in the list.

Returns

  • The number of attributes in the list.

See Also

public String getLocalName(int index)

Return an attribute's local name.

Parameters

index The attribute's index (zero-based).

Returns

  • The attribute's local name, the empty string if none is available, or null if the index if out of range.

public String getQName(int index)

Return an attribute's qualified (prefixed) name.

Parameters

index The attribute's index (zero-based).

Returns

  • The attribute's qualified name, the empty string if none is available, or null if the index is out of bounds.

See Also

public String getType(int index)

Return an attribute's type by index.

Parameters

index The attribute's index (zero-based).

Returns

  • The attribute's type, "CDATA" if the type is unknown, or null if the index is out of bounds.

See Also

public String getType(String uri, String localName)

Look up an attribute's type by Namespace-qualified name.

Parameters

uri The Namespace URI, or the empty string for a name with no explicit Namespace URI.
localName The local name.

Returns

  • The attribute's type, or null if there is no matching attribute.

public String getType(String qName)

Look up an attribute's type by qualified (prefixed) name.

Parameters

qName The qualified name.

Returns

  • The attribute's type, or null if there is no matching attribute.

public String getURI(int index)

Return an attribute's Namespace URI.

Parameters

index The attribute's index (zero-based).

Returns

  • The Namespace URI, the empty string if none is available, or null if the index is out of range.

See Also

public String getValue(int index)

Return an attribute's value by index.

Parameters

index The attribute's index (zero-based).

Returns

  • The attribute's value or null if the index is out of bounds.

See Also

public String getValue(String qName)

Look up an attribute's value by qualified (prefixed) name.

Parameters

qName The qualified name.

Returns

  • The attribute's value, or null if there is no matching attribute.

public String getValue(String uri, String localName)

Look up an attribute's value by Namespace-qualified name.

Parameters

uri The Namespace URI, or the empty string for a name with no explicit Namespace URI.
localName The local name.

Returns

  • The attribute's value, or null if there is no matching attribute.

public void removeAttribute(int index)

Remove an attribute from the list.

Parameters

index The index of the attribute (zero-based).

Throws

ArrayIndexOutOfBoundsException When the supplied index does not point to an attribute in the list.

public void setAttribute(int index, String uri, String localName, String qName, String type, String value)

Set an attribute in the list.

For the sake of speed, this method does no checking for name conflicts or well-formedness: such checks are the responsibility of the application.

Parameters

index The index of the attribute (zero-based).
uri The Namespace URI, or the empty string if none is available or Namespace processing is not being performed.
localName The local name, or the empty string if Namespace processing is not being performed.
qName The qualified name, or the empty string if qualified names are not available.
type The attribute type as a string.
value The attribute value.

Throws

ArrayIndexOutOfBoundsException When the supplied index does not point to an attribute in the list.

public void setAttributes(Attributes atts)

Copy an entire Attributes object.

It may be more efficient to reuse an existing object rather than constantly allocating new ones.

Parameters

atts The attributes to copy.

public void setLocalName(int index, String localName)

Set the local name of a specific attribute.

Parameters

index The index of the attribute (zero-based).
localName The attribute's local name, or the empty string for none.

Throws

ArrayIndexOutOfBoundsException When the supplied index does not point to an attribute in the list.

public void setQName(int index, String qName)

Set the qualified name of a specific attribute.

Parameters

index The index of the attribute (zero-based).
qName The attribute's qualified name, or the empty string for none.

Throws

ArrayIndexOutOfBoundsException When the supplied index does not point to an attribute in the list.

public void setType(int index, String type)

Set the type of a specific attribute.

Parameters

index The index of the attribute (zero-based).
type The attribute's type.

Throws

ArrayIndexOutOfBoundsException When the supplied index does not point to an attribute in the list.

public void setURI(int index, String uri)

Set the Namespace URI of a specific attribute.

Parameters

index The index of the attribute (zero-based).
uri The attribute's Namespace URI, or the empty string for none.

Throws

ArrayIndexOutOfBoundsException When the supplied index does not point to an attribute in the list.

public void setValue(int index, String value)

Set the value of a specific attribute.

Parameters

index The index of the attribute (zero-based).
value The attribute's value.

Throws

ArrayIndexOutOfBoundsException When the supplied index does not point to an attribute in the list.
Copyright 2007 Google Inc. Build 0.9_r1-98467 - 14 Aug 2008 18:56