Interface Comment

All Superinterfaces:: CharacterData, Node

public interface Comment extends CharacterData

This interface inherits from CharacterData and represents the content of a comment, i.e., all the characters between the starting ''. Note that this is the definition of a comment in XML, and, in practice, HTML, although some HTML tools may implement the full SGML comment structure.

No lexical check is done on the content of a comment and it is therefore possible to have the character sequence "--" (double-hyphen) in the content, which is illegal in a comment per section 2.5 of [XML 1.0]. The presence of this character sequence must generate a fatal error during serialization.

Since:: 1.4, DOM Level 2

Field Summary

Fields declared in interface Node

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	Field	Description
`static final short`	`ATTRIBUTE_NODE`	The node is an `Attr`.
`static final short`	`CDATA_SECTION_NODE`	The node is a `CDATASection`.
`static final short`	`COMMENT_NODE`	The node is a `Comment`.
`static final short`	`DOCUMENT_FRAGMENT_NODE`	The node is a `DocumentFragment`.
`static final short`	`DOCUMENT_NODE`	The node is a `Document`.
`static final short`	`DOCUMENT_POSITION_CONTAINED_BY`	The node is contained by the reference node.
`static final short`	`DOCUMENT_POSITION_CONTAINS`	The node contains the reference node.
`static final short`	`DOCUMENT_POSITION_DISCONNECTED`	The two nodes are disconnected.
`static final short`	`DOCUMENT_POSITION_FOLLOWING`	The node follows the reference node.
`static final short`	`DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC`	The determination of preceding versus following is implementation-specific.
`static final short`	`DOCUMENT_POSITION_PRECEDING`	The second node precedes the reference node.
`static final short`	`DOCUMENT_TYPE_NODE`	The node is a `DocumentType`.
`static final short`	`ELEMENT_NODE`	The node is an `Element`.
`static final short`	`ENTITY_NODE`	The node is an `Entity`.
`static final short`	`ENTITY_REFERENCE_NODE`	The node is an `EntityReference`.
`static final short`	`NOTATION_NODE`	The node is a `Notation`.
`static final short`	`PROCESSING_INSTRUCTION_NODE`	The node is a `ProcessingInstruction`.
`static final short`	`TEXT_NODE`	The node is a `Text` node.

Method Summary

Methods declared in interface CharacterData

appendData, deleteData, getData, getLength, insertData, replaceData, setData, substringData

Modifier and Type	Method	Description
`void`	`appendData(String arg)`	Append the string to the end of the character data of the node.
`void`	`deleteData(int offset, int count)`	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(int offset, String arg)`	Insert a string at the specified 16-bit unit offset.
`void`	`replaceData(int offset, int count, String arg)`	Replace the characters starting at the specified 16-bit unit offset with the specified string.
`void`	`setData(String data)`	The character data of the node that implements this interface.
`String`	`substringData(int offset, int count)`	Extracts a range of data from the node.

Methods declared in interface 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

Modifier and Type	Method	Description
`Node`	`appendChild(Node newChild)`	Adds the node `newChild` to the end of the list of children of this node.
`Node`	`cloneNode(boolean deep)`	Returns a duplicate of this node, i.e., serves as a generic copy constructor for nodes.
`short`	`compareDocumentPosition(Node other)`	Compares the reference node, i.e. the node on which this method is being called, with a node, i.e. the one passed as a parameter, with regard to their position in the document and according to the document order.
`NamedNodeMap`	`getAttributes()`	A `NamedNodeMap` containing the attributes of this node (if it is an `Element`) or `null` otherwise.
`String`	`getBaseURI()`	The absolute base URI of this node or `null` if the implementation wasn't able to obtain an absolute URI.
`NodeList`	`getChildNodes()`	A `NodeList` that contains all children of this node.
`Object`	`getFeature(String feature, String version)`	This method returns a specialized object which implements the specialized APIs of the specified feature and version, as specified in .
`Node`	`getFirstChild()`	The first child of this node.
`Node`	`getLastChild()`	The last child of this node.
`String`	`getLocalName()`	Returns the local part of the qualified name of this node.
`String`	`getNamespaceURI()`	The namespace URI of this node, or `null` if it is unspecified (see ).
`Node`	`getNextSibling()`	The node immediately following this node.
`String`	`getNodeName()`	The name of this node, depending on its type; see the table above.
`short`	`getNodeType()`	A code representing the type of the underlying object, as defined above.
`String`	`getNodeValue()`	The value of this node, depending on its type; see the table above.
`Document`	`getOwnerDocument()`	The `Document` object associated with this node.
`Node`	`getParentNode()`	The parent of this node.
`String`	`getPrefix()`	The namespace prefix of this node, or `null` if it is unspecified.
`Node`	`getPreviousSibling()`	The node immediately preceding this node.
`String`	`getTextContent()`	This attribute returns the text content of this node and its descendants.
`Object`	`getUserData(String key)`	Retrieves the object associated to a key on a this node.
`boolean`	`hasAttributes()`	Returns whether this node (if it is an element) has any attributes.
`boolean`	`hasChildNodes()`	Returns whether this node has any children.
`Node`	`insertBefore(Node newChild, Node refChild)`	Inserts the node `newChild` before the existing child node `refChild`.
`boolean`	`isDefaultNamespace(String namespaceURI)`	This method checks if the specified `namespaceURI` is the default namespace or not.
`boolean`	`isEqualNode(Node arg)`	Tests whether two nodes are equal.
`boolean`	`isSameNode(Node other)`	Returns whether this node is the same node as the given one.
`boolean`	`isSupported(String feature, String version)`	Tests whether the DOM implementation implements a specific feature and that feature is supported by this node, as specified in .
`String`	`lookupNamespaceURI(String prefix)`	Look up the namespace URI associated to the given prefix, starting from this node.
`String`	`lookupPrefix(String namespaceURI)`	Look up the prefix associated to the given namespace URI, starting from this node.
`void`	`normalize()`	Puts all `Text` nodes in the full depth of the sub-tree underneath this `Node`, including attribute nodes, into a "normal" form where only structure (e.g., elements, comments, processing instructions, CDATA sections, and entity references) separates `Text` nodes, i.e., there are neither adjacent `Text` nodes nor empty `Text` nodes.
`Node`	`removeChild(Node oldChild)`	Removes the child node indicated by `oldChild` from the list of children, and returns it.
`Node`	`replaceChild(Node newChild, Node oldChild)`	Replaces the child node `oldChild` with `newChild` in the list of children, and returns the `oldChild` node.
`void`	`setNodeValue(String nodeValue)`	The value of this node, depending on its type; see the table above.
`void`	`setPrefix(String prefix)`	The namespace prefix of this node, or `null` if it is unspecified.
`void`	`setTextContent(String textContent)`	This attribute returns the text content of this node and its descendants.
`Object`	`setUserData(String key, Object data, UserDataHandler handler)`	Associate an object to a key on this node.

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