NodeCDATASection, Comment, Text
public interface CharacterData extends Node
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 CharacterData, though Text and others do inherit the interface from it. All offsets in this interface start from 0. 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.
See also the Document Object Model (DOM) Level 3 Core Specification.
ATTRIBUTE_NODE, CDATA_SECTION_NODE, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_POSITION_CONTAINED_BY, DOCUMENT_POSITION_CONTAINS, DOCUMENT_POSITION_DISCONNECTED, DOCUMENT_POSITION_FOLLOWING, DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC, DOCUMENT_POSITION_PRECEDING, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, NOTATION_NODE, PROCESSING_INSTRUCTION_NODE, TEXT_NODE
| Modifier and Type | Method | Description |
|---|---|---|
void |
appendData |
Append the string to the end of the character data of the node. |
void |
deleteData |
Remove a range of 16-bit units from the node. |
String |
getData() |
The character data of the node that implements this interface. |
int |
getLength() |
The number of 16-bit units that are available through data and the substringData method below. |
void |
insertData |
Insert a string at the specified 16-bit unit offset. |
void |
replaceData |
Replace the characters starting at the specified 16-bit unit offset with the specified string. |
void |
setData |
The character data of the node that implements this interface. |
String |
substringData |
Extracts a range of data from the node. |
appendChild, cloneNode, compareDocumentPosition, getAttributes, getBaseURI, getChildNodes, getFeature, getFirstChild, getLastChild, getLocalName, getNamespaceURI, getNextSibling, getNodeName, getNodeType, getNodeValue, getOwnerDocument, getParentNode, getPrefix, getPreviousSibling, getTextContent, getUserData, hasAttributes, hasChildNodes, insertBefore, isDefaultNamespace, isEqualNode, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, normalize, removeChild, replaceChild, setNodeValue, setPrefix, setTextContent, setUserData
String getData() throws DOMException
CharacterData node. However, implementation limits may mean that the entirety of a node's data may not fit into a single DOMString. In such cases, the user may call substringData to retrieve the data in appropriately sized pieces.DOMException - DOMSTRING_SIZE_ERR: Raised when it would return more characters than fit in a DOMString variable on the implementation platform.void setData(String data) throws DOMException
CharacterData node. However, implementation limits may mean that the entirety of a node's data may not fit into a single DOMString. In such cases, the user may call substringData to retrieve the data in appropriately sized pieces.DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly.int getLength()
data and the substringData method below. This may have the value zero, i.e., CharacterData nodes may be empty.String substringData(int offset, int count) throws DOMException
offset - Start offset of substring to extract.count - The number of 16-bit units to extract.offset and count exceeds the length, then all 16-bit units to the end of the data are returned.DOMException - INDEX_SIZE_ERR: Raised if the specified offset is negative or greater than the number of 16-bit units in data, or if the specified count is negative. DOMString.void appendData(String arg) throws DOMException
data provides access to the concatenation of data and the DOMString specified.arg - The DOMString to append.DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.void insertData(int offset, String arg) throws DOMException
offset - The character offset at which to insert.arg - The DOMString to insert.DOMException - INDEX_SIZE_ERR: Raised if the specified offset is negative or greater than the number of 16-bit units in data. void deleteData(int offset, int count) throws DOMException
data and length reflect the change.offset - The offset from which to start removing.count - The number of 16-bit units to delete. If the sum of offset and count exceeds length then all 16-bit units from offset to the end of the data are deleted.DOMException - INDEX_SIZE_ERR: Raised if the specified offset is negative or greater than the number of 16-bit units in data, or if the specified count is negative. void replaceData(int offset, int count, String arg) throws DOMException
offset - The offset from which to start replacing.count - The number of 16-bit units to replace. If the sum of offset and count exceeds length, then all 16-bit units to the end of the data are replaced; (i.e., the effect is the same as a remove method call with the same range, followed by an append method invocation).arg - The DOMString with which the range must be replaced.DOMException - INDEX_SIZE_ERR: Raised if the specified offset is negative or greater than the number of 16-bit units in data, or if the specified count is negative.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.xml/org/w3c/dom/CharacterData.html