The CharacterData.java Java example source code
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* This file is available under and governed by the GNU General Public
* License version 2 only, as published by the Free Software Foundation.
* However, the following notice accompanied the original version of this
* file and, per its terms, should not be removed:
*
* Copyright (c) 2004 World Wide Web Consortium,
*
* (Massachusetts Institute of Technology, European Research Consortium for
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* work is distributed under the W3C(r) Software License [1] 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.
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* [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
*/
package org.w3c.dom;
/**
* The <code>CharacterData interface extends Node with a set of
* attributes and methods for accessing character data in the DOM. For
* clarity this set is defined here rather than on each object that uses
* these attributes and methods. No DOM objects correspond directly to
* <code>CharacterData, though Text and others do
* inherit the interface from it. All <code>offsets in this interface
* start from <code>0.
* <p>As explained in the DOMString interface, text strings in
* the DOM are represented in UTF-16, i.e. as a sequence of 16-bit units. In
* the following, the term 16-bit units is used whenever necessary to
* indicate that indexing on CharacterData is done in 16-bit units.
* <p>See also the Document Object Model (DOM) Level 3 Core Specification.
*/
public interface CharacterData extends Node {
/**
* The character data of the node that implements this interface. The DOM
* implementation may not put arbitrary limits on the amount of data
* that may be stored in a <code>CharacterData node. However,
* implementation limits may mean that the entirety of a node's data may
* not fit into a single <code>DOMString. In such cases, the user
* may call <code>substringData to retrieve the data in
* appropriately sized pieces.
* @exception DOMException
* DOMSTRING_SIZE_ERR: Raised when it would return more characters than
* fit in a <code>DOMString variable on the implementation
* platform.
*/
public String getData()
throws DOMException;
/**
* The character data of the node that implements this interface. The DOM
* implementation may not put arbitrary limits on the amount of data
* that may be stored in a <code>CharacterData node. However,
* implementation limits may mean that the entirety of a node's data may
* not fit into a single <code>DOMString. In such cases, the user
* may call <code>substringData to retrieve the data in
* appropriately sized pieces.
* @exception DOMException
* NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly.
*/
public void setData(String data)
throws DOMException;
/**
* The number of 16-bit units that are available through <code>data
* and the <code>substringData method below. This may have the
* value zero, i.e., <code>CharacterData nodes may be empty.
*/
public int getLength();
/**
* Extracts a range of data from the node.
* @param offset Start offset of substring to extract.
* @param count The number of 16-bit units to extract.
* @return The specified substring. If the sum of <code>offset and
* <code>count exceeds the length, then all 16-bit
* units to the end of the data are returned.
* @exception DOMException
* INDEX_SIZE_ERR: Raised if the specified <code>offset is
* negative or greater than the number of 16-bit units in
* <code>data, or if the specified count is
* negative.
* <br>DOMSTRING_SIZE_ERR: Raised if the specified range of text does
* not fit into a <code>DOMString.
*/
public String substringData(int offset,
int count)
throws DOMException;
/**
* Append the string to the end of the character data of the node. Upon
* success, <code>data provides access to the concatenation of
* <code>data and the DOMString specified.
* @param arg The <code>DOMString to append.
* @exception DOMException
* NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
*/
public void appendData(String arg)
throws DOMException;
/**
* Insert a string at the specified 16-bit unit offset.
* @param offset The character offset at which to insert.
* @param arg The <code>DOMString to insert.
* @exception DOMException
* INDEX_SIZE_ERR: Raised if the specified <code>offset is
* negative or greater than the number of 16-bit units in
* <code>data.
* <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
*/
public void insertData(int offset,
String arg)
throws DOMException;
/**
* Remove a range of 16-bit units from the node. Upon success,
* <code>data and length reflect the change.
* @param offset The offset from which to start removing.
* @param count The number of 16-bit units to delete. If the sum of
* <code>offset and count exceeds
* <code>length then all 16-bit units from offset
* to the end of the data are deleted.
* @exception DOMException
* INDEX_SIZE_ERR: Raised if the specified <code>offset is
* negative or greater than the number of 16-bit units in
* <code>data, or if the specified count is
* negative.
* <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
*/
public void deleteData(int offset,
int count)
throws DOMException;
/**
* Replace the characters starting at the specified 16-bit unit offset
* with the specified string.
* @param offset The offset from which to start replacing.
* @param count The number of 16-bit units to replace. If the sum of
* <code>offset and count exceeds
* <code>length, then all 16-bit units to the end of the data
* are replaced; (i.e., the effect is the same as a <code>remove
* method call with the same range, followed by an <code>append
* method invocation).
* @param arg The <code>DOMString with which the range must be
* replaced.
* @exception DOMException
* INDEX_SIZE_ERR: Raised if the specified <code>offset is
* negative or greater than the number of 16-bit units in
* <code>data, or if the specified count is
* negative.
* <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
*/
public void replaceData(int offset,
int count,
String arg)
throws DOMException;
}
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