| NullAttributes.java |
/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2001-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Axis" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.jboss.axis.message;
import org.xml.sax.Attributes;
/**
* Null implementation of the Attributes interface.
*
* @author David Megginson
* @author Sam Ruby <rubys@us.ibm.com>
*/
public class NullAttributes implements Attributes
{
public static final NullAttributes singleton = new NullAttributes();
////////////////////////////////////////////////////////////////////
// Implementation of org.xml.sax.Attributes.
////////////////////////////////////////////////////////////////////
/**
* Return the number of attributes in the list.
*
* @return The number of attributes in the list.
* @see org.xml.sax.Attributes#getLength
*/
public int getLength()
{
return 0;
}
/**
* Return an attribute's Namespace URI.
*
* @param index The attribute's index (zero-based).
* @return The Namespace URI, the empty string if none is
* available, or null if the index is out of range.
* @see org.xml.sax.Attributes#getURI
*/
public String getURI(int index)
{
return null;
}
/**
* Return an attribute's local name.
*
* @param index The attribute's index (zero-based).
* @return The attribute's local name, the empty string if
* none is available, or null if the index if out of range.
* @see org.xml.sax.Attributes#getLocalName
*/
public String getLocalName(int index)
{
return null;
}
/**
* Return an attribute's qualified (prefixed) name.
*
* @param index The attribute's index (zero-based).
* @return The attribute's qualified name, the empty string if
* none is available, or null if the index is out of bounds.
* @see org.xml.sax.Attributes#getQName
*/
public String getQName(int index)
{
return null;
}
/**
* Return an attribute's type by index.
*
* @param index The attribute's index (zero-based).
* @return The attribute's type, "CDATA" if the type is unknown, or null
* if the index is out of bounds.
* @see org.xml.sax.Attributes#getType(int)
*/
public String getType(int index)
{
return null;
}
/**
* Return an attribute's value by index.
*
* @param index The attribute's index (zero-based).
* @return The attribute's value or null if the index is out of bounds.
* @see org.xml.sax.Attributes#getValue(int)
*/
public String getValue(int index)
{
return null;
}
/**
* Look up an attribute's index by Namespace name.
* <p/>
* <p>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.</p>
*
* @param uri The attribute's Namespace URI, or the empty
* string if none is available.
* @param localName The attribute's local name.
* @return The attribute's index, or -1 if none matches.
* @see org.xml.sax.Attributes#getIndex(java.lang.String,java.lang.String)
*/
public int getIndex(String uri, String localName)
{
return -1;
}
/**
* Look up an attribute's index by qualified (prefixed) name.
*
* @param qName The qualified name.
* @return The attribute's index, or -1 if none matches.
* @see org.xml.sax.Attributes#getIndex(java.lang.String)
*/
public int getIndex(String qName)
{
return -1;
}
/**
* Look up an attribute's type by Namespace-qualified name.
*
* @param uri The Namespace URI, or the empty string for a name
* with no explicit Namespace URI.
* @param localName The local name.
* @return The attribute's type, or null if there is no
* matching attribute.
* @see org.xml.sax.Attributes#getType(java.lang.String,java.lang.String)
*/
public String getType(String uri, String localName)
{
return null;
}
/**
* Look up an attribute's type by qualified (prefixed) name.
*
* @param qName The qualified name.
* @return The attribute's type, or null if there is no
* matching attribute.
* @see org.xml.sax.Attributes#getType(java.lang.String)
*/
public String getType(String qName)
{
return null;
}
/**
* Look up an attribute's value by Namespace-qualified name.
*
* @param uri The Namespace URI, or the empty string for a name
* with no explicit Namespace URI.
* @param localName The local name.
* @return The attribute's value, or null if there is no
* matching attribute.
* @see org.xml.sax.Attributes#getValue(java.lang.String,java.lang.String)
*/
public String getValue(String uri, String localName)
{
return null;
}
/**
* Look up an attribute's value by qualified (prefixed) name.
*
* @param qName The qualified name.
* @return The attribute's value, or null if there is no
* matching attribute.
* @see org.xml.sax.Attributes#getValue(java.lang.String)
*/
public String getValue(String qName)
{
return null;
}
}
| NullAttributes.java |