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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--il.co.iter.dbdom.DBNode
The Node
interface is the primary datatype for the entire
Document Object Model. It represents a single node in the document tree.
While all objects implementing the Node
interface expose
methods for dealing with children, not all objects implementing the
Node
interface may have children. For example,
Text
nodes may not have children, and adding children to
such nodes results in a DOMException
being raised.
The attributes nodeName
, nodeValue
and
attributes
are included as a mechanism to get at node
information without casting down to the specific derived interface. In
cases where there is no obvious mapping of these attributes for a
specific nodeType
(e.g., nodeValue
for an
Element
or attributes
for a Comment
), this returns null
. Note that the specialized interfaces
may contain additional and more convenient mechanisms to get and set the
relevant information.
See also the Document Object Model (DOM) Level 2 Core Specification.
Field Summary | |
protected java.sql.Connection |
con
|
protected DBDOMImplementation |
dbDomImplementation
|
protected long |
id
|
Fields inherited from interface org.w3c.dom.Node |
ATTRIBUTE_NODE, CDATA_SECTION_NODE, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, NOTATION_NODE, PROCESSING_INSTRUCTION_NODE, TEXT_NODE |
Constructor Summary | |
protected |
DBNode(DBDOMImplementation dbDomImplementation,
long id)
Constructs a client representation of a DBDOM Node. |
Method Summary | |
Node |
appendChild(Node newChild)
Adds the node newChild to the end of the list of children
of this node. |
Node |
cloneNode(boolean deep)
Not Implemented Returns a duplicate of this node, i.e., serves as a generic copy constructor for nodes. |
NamedNodeMap |
getAttributes()
A NamedNodeMap containing the attributes of this node (if
it is an Element ) or null otherwise. |
NodeList |
getChildNodes()
Not Tested Not Implemnted A NodeList that contains all children of this node. |
protected DBDOMImplementation |
getDbDomImplementation()
Non-DOM Returns the DBDOMImplementation that is responsible for this
Node. |
Node |
getFirstChild()
The first child of this node. |
protected long |
getId()
Non-DOMReturns the database ID of this Node. |
Node |
getLastChild()
The last child of this node. |
java.lang.String |
getLocalName()
Not Implemented Returns the local part of the qualified name of this node. |
java.lang.String |
getNamespaceURI()
Not Implemented The namespace URI of this node, or null if it is
unspecified. |
Node |
getNextSibling()
The node immediately following this node. |
java.lang.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. |
java.lang.String |
getNodeValue()
The value of this node, depending on its type; see the table above. |
Document |
getOwnerDocument()
Not Tested The Document object associated with this node. |
Node |
getParentNode()
The parent of this node. |
java.lang.String |
getPrefix()
Not Implemented The namespace prefix of this node, or null if it is
unspecified. |
Node |
getPreviousSibling()
The node immediately preceding this node. |
boolean |
hasAttributes()
Not Implemented 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)
Not Tested Inserts the node newChild before the existing child node
refChild . |
boolean |
isSupported(java.lang.String feature,
java.lang.String version)
Not Implemented Tests whether the DOM implementation implements a specific feature and that feature is supported by this node. |
void |
normalize()
Not Implemented 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)
Not Tested Replaces the child node oldChild with newChild
in the list of children, and returns the oldChild node. |
void |
setNodeValue(java.lang.String nodeValue)
|
void |
setPrefix(java.lang.String prefix)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
protected DBDOMImplementation dbDomImplementation
protected java.sql.Connection con
protected long id
Constructor Detail |
protected DBNode(DBDOMImplementation dbDomImplementation, long id)
Consider checking wheter or not this Node exists in the database and throwing an exception if it doesn't.
Disregard. Node existance is checked by a factory method in DBDOMImplementation.
Method Detail |
public java.lang.String getNodeName()
getNodeName
in interface Node
public java.lang.String getNodeValue() throws DOMException
null
, setting it has no effect.getNodeValue
in interface Node
DOMException
- NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly.DOMException
- DOMSTRING_SIZE_ERR: Raised when it would return more characters than
fit in a DOMString
variable on the implementation
platform.public void setNodeValue(java.lang.String nodeValue) throws DOMException
setNodeValue
in interface Node
public short getNodeType()
getNodeType
in interface Node
public Node getParentNode()
Attr
,
Document
, DocumentFragment
,
Entity
, and Notation
may have a parent.
However, if a node has just been created and not yet added to the
tree, or if it has been removed from the tree, this is
null
.getParentNode
in interface Node
public NodeList getChildNodes()
NodeList
that contains all children of this node. If
there are no children, this is a NodeList
containing no
nodes.getChildNodes
in interface Node
public Node getFirstChild()
null
.getFirstChild
in interface Node
public Node getLastChild()
null
.getLastChild
in interface Node
public Node getPreviousSibling()
null
.getPreviousSibling
in interface Node
public Node getNextSibling()
null
.getNextSibling
in interface Node
public NamedNodeMap getAttributes()
NamedNodeMap
containing the attributes of this node (if
it is an Element
) or null
otherwise.
This methid's implementation is untipical of this package. Unlike
most methods, getAttributes()
is overriden in
DBElement.getAttributes()
. Since only Element
s
can have Attr
s, and it is unlikely that other types of
Node
s ever will, it seemed pointless to access the database
to do type checking.
In DBNode
, this method always returns null
.
getAttributes
in interface Node
DBElement.getAttributes()
public Document getOwnerDocument()
Document
object associated with this node. This is
also the Document
object used to create new nodes. When
this node is a Document
or a DocumentType
which is not used with any Document
yet, this is
null
.getOwnerDocument
in interface Node
public Node insertBefore(Node newChild, Node refChild) throws DOMException
newChild
before the existing child node
refChild
. If refChild
is null
,
insert newChild
at the end of the list of children.
newChild
is a DocumentFragment
object,
all of its children are inserted, in the same order, before
refChild
. If the newChild
is already in the
tree, it is first removed.insertBefore
in interface Node
newChildThe
- node to insert.refChildThe
- reference node, i.e., the node before which the new
node must be inserted.DOMException
- HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not
allow children of the type of the newChild
node, or if
the node to insert is one of this node's ancestors or this node itself.
newChild
was created
from a different document than the one that created this node.
refChild
is not a child of
this node.public Node replaceChild(Node newChild, Node oldChild) throws DOMException
oldChild
with newChild
in the list of children, and returns the oldChild
node.
newChild
is a DocumentFragment
object,
oldChild
is replaced by all of the
DocumentFragment
children, which are inserted in the
same order. If the newChild
is already in the tree, it
is first removed.replaceChild
in interface Node
newChildThe
- new node to put in the child list.oldChildThe
- node being replaced in the list.DOMException
- HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not
allow children of the type of the newChild
node, or if
the node to put in is one of this node's ancestors or this node itself.
newChild
was created
from a different document than the one that created this node.
oldChild
is not a child of
this node.public Node removeChild(Node oldChild) throws DOMException
oldChild
from the list
of children, and returns it.removeChild
in interface Node
oldChildThe
- node being removed.DOMException
- NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
oldChild
is not a child of
this node.public Node appendChild(Node newChild) throws DOMException
newChild
to the end of the list of children
of this node. If the newChild
is already in the tree, it
is first removed.appendChild
in interface Node
newChildThe
- node to add.If it is a DocumentFragment
object, the entire contents of the document fragment are moved
into the child list of this nodeDOMException
- HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not
allow children of the type of the newChild
node, or if
the node to append is one of this node's ancestors or this node itself.
newChild
was created
from a different document than the one that created this node.
public boolean hasChildNodes()
hasChildNodes
in interface Node
true
if this node has any children,
false
otherwise.public Node cloneNode(boolean deep)
parentNode
is null
.).
Element
copies all attributes and their
values, including those generated by the XML processor to represent
defaulted attributes, but this method does not copy any text it
contains unless it is a deep clone, since the text is contained in a
child Text
node. Cloning an Attribute
directly, as opposed to be cloned as part of an Element
cloning operation, returns a specified attribute (
specified
is true
). Cloning any other type
of node simply returns a copy of this node.
EntityReference
clone are readonly
. In addition, clones of unspecified Attr
nodes are
specified. And, cloning Document
,
DocumentType
, Entity
, and
Notation
nodes is implementation dependent.cloneNode
in interface Node
deepIf
- true
, recursively clone the subtree under
the specified node; if false
, clone only the node
itself (and its attributes, if it is an Element
).public void normalize()
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. This can
be used to ensure that the DOM view of a document is the same as if
it were saved and re-loaded, and is useful when operations (such as
XPointer lookups) that depend on a particular document tree
structure are to be used.In cases where the document contains
CDATASections
, the normalize operation alone may not be
sufficient, since XPointers do not differentiate between
Text
nodes and CDATASection
nodes.normalize
in interface Node
public boolean isSupported(java.lang.String feature, java.lang.String version)
isSupported
in interface Node
featureThe
- name of the feature to test. This is the same name
which can be passed to the method hasFeature
on
DOMImplementation
.versionThis
- is the version number of the feature to test. In
Level 2, version 1, this is the string "2.0". If the version is not
specified, supporting any version of the feature will cause the
method to return true
.true
if the specified feature is
supported on this node, false
otherwise.public java.lang.String getNamespaceURI()
null
if it is
unspecified.
ELEMENT_NODE
and
ATTRIBUTE_NODE
and nodes created with a DOM Level 1
method, such as createElement
from the
Document
interface, this is always null
.Per
the Namespaces in XML Specification an attribute does not inherit
its namespace from the element it is attached to. If an attribute is
not explicitly given a namespace, it simply has no namespace.getNamespaceURI
in interface Node
public java.lang.String getPrefix()
null
if it is
unspecified.
nodeName
attribute, which holds the qualified name, as
well as the tagName
and name
attributes of
the Element
and Attr
interfaces, when
applicable.
namespaceURI
and localName
do not change.
ELEMENT_NODE
and
ATTRIBUTE_NODE
and nodes created with a DOM Level 1
method, such as createElement
from the
Document
interface, this is always null
.getPrefix
in interface Node
DOMException
- INVALID_CHARACTER_ERR: Raised if the specified prefix contains an
illegal character.
prefix
is
malformed, if the namespaceURI
of this node is
null
, if the specified prefix is "xml" and the
namespaceURI
of this node is different from "
http://www.w3.org/XML/1998/namespace", if this node is an attribute
and the specified prefix is "xmlns" and the
namespaceURI
of this node is different from "
http://www.w3.org/2000/xmlns/", or if this node is an attribute and
the qualifiedName
of this node is "xmlns" .public void setPrefix(java.lang.String prefix) throws DOMException
setPrefix
in interface Node
public java.lang.String getLocalName()
ELEMENT_NODE
and
ATTRIBUTE_NODE
and nodes created with a DOM Level 1
method, such as createElement
from the
Document
interface, this is always null
.getLocalName
in interface Node
public boolean hasAttributes()
hasAttributes
in interface Node
true
if this node has any attributes,
false
otherwise.protected long getId()
Should never be used outside of this class.
protected DBDOMImplementation getDbDomImplementation()
DBDOMImplementation
that is responsible for this
Node.
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