Interface Entity

All Superinterfaces:

Node

public interface Entity
extends Node

This interface represents a known entity, either parsed or unparsed, in an XML document. Note that this models the entity itself not the entity declaration.

The nodeName attribute that is inherited from Node contains the name of the entity.

An XML processor may choose to completely expand entities before the structure model is passed to the DOM; in this case there will be no EntityReference nodes in the document tree.

XML does not mandate that a non-validating XML processor read and process entity declarations made in the external subset or declared in parameter entities. This means that parsed entities declared in the external subset need not be expanded by some classes of applications, and that the replacement text of the entity may not be available. When the replacement text is available, the corresponding Entity node's child list represents the structure of that replacement value. Otherwise, the child list is empty.

DOM Level 3 does not support editing Entity nodes; if a user wants to make changes to the contents of an Entity, every related EntityReference node has to be replaced in the structure model by a clone of the Entity's contents, and then the desired changes must be made to each of those clones instead. Entity nodes and all their descendants are readonly.

An Entity node does not have any parent.

Note: If the entity contains an unbound namespace prefix, the namespaceURI of the corresponding node in the Entity node subtree is null. The same is true for EntityReference nodes that refer to this entity, when they are created using the createEntityReference method of the Document interface.

See also the Document Object Model (DOM) Level 3 Core Specification.

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

Modifier and Type	Method	Description
String	getInputEncoding()	An attribute specifying the encoding used for this entity at the time of parsing, when it is an external parsed entity.
String	getNotationName()	For unparsed entities, the name of the notation for the entity.
String	getPublicId()	The public identifier associated with the entity if specified, and null otherwise.
String	getSystemId()	The system identifier associated with the entity if specified, and null otherwise.
String	getXmlEncoding()	An attribute specifying, as part of the text declaration, the encoding of this entity, when it is an external parsed entity.
String	getXmlVersion()	An attribute specifying, as part of the text declaration, the version number of this entity, when it is an external parsed entity.

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.

Method Details

getPublicId

String getPublicId()

The public identifier associated with the entity if specified, and null otherwise.

getSystemId

String getSystemId()

The system identifier associated with the entity if specified, and null otherwise. This may be an absolute URI or not.

getNotationName

String getNotationName()

For unparsed entities, the name of the notation for the entity. For parsed entities, this is null.

getInputEncoding

String getInputEncoding()

An attribute specifying the encoding used for this entity at the time of parsing, when it is an external parsed entity. This is null if it an entity from the internal subset or if it is not known.

Since:

1.5, DOM Level 3

getXmlEncoding

String getXmlEncoding()

An attribute specifying, as part of the text declaration, the encoding of this entity, when it is an external parsed entity. This is null otherwise.

Since:

1.5, DOM Level 3

getXmlVersion

String getXmlVersion()

An attribute specifying, as part of the text declaration, the version number of this entity, when it is an external parsed entity. This is null otherwise.

Since:

1.5, DOM Level 3