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/*
* Copyright (c) 2003 World Wide Web Consortium,
* (Massachusetts Institute of Technology, Institut National de
* Recherche en Informatique et en Automatique, Keio University). All
* Rights Reserved. This program is distributed under the W3C's Software
* Intellectual Property License. This program is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE.
* See W3C License http://www.w3.org/Consortium/Legal/ for more details.
*/
package org.w3c.dom.html2;
import org.w3c.dom.Node;
import org.w3c.dom.DOMException;
/**
* An <code>HTMLOptionsCollection</code> is a list of nodes representing HTML
* option element. An individual node may be accessed by either ordinal
* index or the node's <code>name</code> or <code>id</code> attributes.
* Collections in the HTML DOM are assumed to be live meaning that they are
* automatically updated when the underlying document is changed.
* <p>See also the <a href='http://www.w3.org/TR/2003/REC-DOM-Level-2-HTML-20030109'>Document Object Model (DOM) Level 2 HTML Specification</a>.
* @since DOM Level 2
*/
public interface HTMLOptionsCollection {
/**
* This attribute specifies the length or size of the list.
*/
public int getLength();
/**
* This attribute specifies the length or size of the list.
* @exception DOMException
* NOT_SUPPORTED_ERR: if setting the length is not allowed by the
* implementation.
*/
public void setLength(int length)
throws DOMException;
/**
* This method retrieves a node specified by ordinal index. Nodes are
* numbered in tree order (depth-first traversal order).
* @param index The index of the node to be fetched. The index origin is
* 0.
* @return The <code>Node</code> at the corresponding position upon
* success. A value of <code>null</code> is returned if the index is
* out of range.
*/
public Node item(int index);
/**
* This method retrieves a <code>Node</code> using a name. It first
* searches for a <code>Node</code> with a matching <code>id</code>
* attribute. If it doesn't find one, it then searches for a
* <code>Node</code> with a matching <code>name</code> attribute, but
* only on those elements that are allowed a name attribute. This method
* is case insensitive in HTML documents and case sensitive in XHTML
* documents.
* @param name The name of the <code>Node</code> to be fetched.
* @return The <code>Node</code> with a <code>name</code> or
* <code>id</code> attribute whose value corresponds to the specified
* string. Upon failure (e.g., no node with this name exists), returns
* <code>null</code>.
*/
public Node namedItem(String name);
}
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