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org.enhydra.xml.lazydom
Class LazyAttrNS  

java.lang.Object
  org.apache.xerces.dom.NodeImpl
      org.apache.xerces.dom.AttrImpl
          org.apache.xerces.dom.AttrNSImpl
              org.enhydra.xml.lazydom.LazyAttrNS

All Implemented Interfaces:

org.w3c.dom.Attr, java.lang.Cloneable, org.w3c.dom.events.EventTarget, LazyAttr, LazyNode, LazyParent, org.w3c.dom.Node, org.w3c.dom.NodeList, java.io.Serializable, org.apache.xerces.dom3.TypeInfo

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public class LazyAttrNS

extends org.apache.xerces.dom.AttrNSImpl

implements LazyAttr

Implementation of the DOM Attr that supports lazy instantiation of a template DOM. This version supports namespaces.

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Field Summary
private  boolean	fChildrenExpanded
private  boolean	fIsTemplateNode           Is this a template node?
private  int	fNodeId
private  boolean	fParentExpanded           Parent and children expanded flags.
private  LazyAttrNS	fTemplateNode           Template for this Attr.

 

Fields inherited from class org.apache.xerces.dom.AttrNSImpl

localName, namespaceURI

 

Fields inherited from class org.apache.xerces.dom.AttrImpl

name, textNode, value

 

Fields inherited from class org.apache.xerces.dom.NodeImpl

DOCUMENT_POSITION_CONTAINS, DOCUMENT_POSITION_DISCONNECTED, DOCUMENT_POSITION_FOLLOWING, DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC, DOCUMENT_POSITION_IS_CONTAINED, DOCUMENT_POSITION_PRECEDING, ELEMENT_DEFINITION_NODE, FIRSTCHILD, flags, HASSTRING, ID, IGNORABLEWS, NORMALIZED, OWNED, ownerNode, READONLY, SPECIFIED, SYNCCHILDREN, SYNCDATA, TREE_POSITION_ANCESTOR, TREE_POSITION_DESCENDANT, TREE_POSITION_DISCONNECTED, TREE_POSITION_EQUIVALENT, TREE_POSITION_FOLLOWING, TREE_POSITION_PRECEDING, TREE_POSITION_SAME_NODE

 

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

 

Fields inherited from interface org.enhydra.xml.lazydom.LazyNode

DOCUMENT_NODE_ID, NULL_NODE_ID

 

Fields inherited from interface org.apache.xerces.dom3.TypeInfo

DERIVATION_EXTENSION, DERIVATION_LIST, DERIVATION_RESTRICTION, DERIVATION_UNION

 

Constructor Summary
protected	LazyAttrNS(LazyDocument ownerDoc, LazyAttrNS template, java.lang.String namespaceURI, java.lang.String qualifiedName)           Constructor with namespace.

 

Method Summary
org.w3c.dom.Node	appendChild(org.w3c.dom.Node newChild)           Adds the node newChild to the end of the list of children of this node.
void	appendChildWhileExpanding(org.w3c.dom.Node child)           Append a child during node expansion.
boolean	areChildrenExpanded()           Are the children of this node expanded?
org.w3c.dom.Node	cloneNode(boolean deep)           Returns a duplicate of this node, i.e., serves as a generic copy constructor for nodes.
private  void	expandChildren()           Expand the children of this element, if they are not already expanded.
private  void	expandParent()           Expand the parent of this element, if it is not already expanded.
org.w3c.dom.NodeList	getChildNodes()           A NodeList that contains all children of this node.
org.w3c.dom.Node	getFirstChild()           The first child of this node.
org.w3c.dom.Node	getLastChild()           The last child of this node.
org.w3c.dom.Node	getNextSibling()           The node immediately following this node.
int	getNodeId()           Get the node numeric id number.
java.lang.String	getNodeValue()           The value of this node, depending on its type; see the table above.
org.w3c.dom.Node	getParentNode()           The parent of this node.
org.w3c.dom.Node	getPreviousSibling()           The node immediately preceding this node.
LazyAttrNS	getTemplateAttr()           Get the template for this node.
LazyNode	getTemplateNode()           Get the template node as a LazyNode.
java.lang.String	getValue()           On retrieval, the value of the attribute is returned as a string.
boolean	hasChildNodes()           Returns whether this node has any children.
org.w3c.dom.Node	insertBefore(org.w3c.dom.Node newChild, org.w3c.dom.Node refChild)           Inserts the node newChild before the existing child node refChild.
boolean	isParentExpanded()           Is the parent of this node expanded?
boolean	isTemplateNode()           Check if this node is a template node.
void	makeTemplateNode(int nodeId)
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.
org.w3c.dom.Node	removeChild(org.w3c.dom.Node oldChild)           Removes the child node indicated by oldChild from the list of children, and returns it.
org.w3c.dom.Node	replaceChild(org.w3c.dom.Node newChild, org.w3c.dom.Node oldChild)           Replaces the child node oldChild with newChild in the list of children, and returns the oldChild node.
void	setChildrenExpanded()           Flag the children as being expanded.
void	setNodeValue(java.lang.String nodeValue)           Implicit in the rerouting of getNodeValue to getValue is the need to redefine setNodeValue, for symmetry's sake.
void	setParentExpanded()           Flag the parent as being expanded.
void	setParentWhileExpanding(org.w3c.dom.Node parent)           Set the parent of this node during expansion.
void	setValue(java.lang.String value)           The DOM doesn't clearly define what setValue(null) means.
LazyNode	templateClone(org.w3c.dom.Document ownerDocument)           Create a new node, using this node as the template.
java.lang.String	toString()           Return string for debugging.

 

Methods inherited from class org.apache.xerces.dom.AttrNSImpl

getLocalName, getNamespaceURI, getPrefix, getTypeName, getTypeNamespace, isDerivedFrom, setPrefix, setValues

 

Methods inherited from class org.apache.xerces.dom.AttrImpl

getElement, getLength, getName, getNodeName, getNodeType, getOwnerElement, getSchemaTypeInfo, getSpecified, isEqualNode, isId, item, makeChildNode, setIdAttribute, setReadOnly, setSpecified, setType, synchronizeChildren

 

Methods inherited from class org.apache.xerces.dom.NodeImpl

addEventListener, changed, changes, compareDocumentPosition, compareTreePosition, dispatchEvent, getAttributes, getBaseURI, getContainer, getFeature, getNodeNumber, getOwnerDocument, getReadOnly, getTextContent, getUserData, getUserData, hasAttributes, isDefaultNamespace, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, needsSyncChildren, removeEventListener, setTextContent, setUserData, setUserData, synchronizeData

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Methods inherited from interface org.w3c.dom.Attr

getName, getOwnerElement, getSpecified

 

Methods inherited from interface org.w3c.dom.Node

getAttributes, getLocalName, getNamespaceURI, getNodeName, getNodeType, getOwnerDocument, getPrefix, hasAttributes, isSupported, setPrefix

 

Field Detail

fTemplateNode

private LazyAttrNS fTemplateNode

Template for this Attr.

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fNodeId

private int fNodeId

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fIsTemplateNode

private boolean fIsTemplateNode

Is this a template node?

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fParentExpanded

private boolean fParentExpanded

Parent and children expanded flags.

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fChildrenExpanded

private boolean fChildrenExpanded

Constructor Detail

LazyAttrNS

protected LazyAttrNS(LazyDocument ownerDoc,
                     LazyAttrNS template,
                     java.lang.String namespaceURI,
                     java.lang.String qualifiedName)

Constructor with namespace.

Method Detail

getTemplateAttr

public LazyAttrNS getTemplateAttr()

Get the template for this node.

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cloneNode

public org.w3c.dom.Node cloneNode(boolean deep)

Description copied from interface: org.w3c.dom.Node

Returns a duplicate of this node, i.e., serves as a generic copy constructor for nodes. The duplicate node has no parent; ( parentNode is null.).
Cloning an 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.
Note that cloning an immutable subtree results in a mutable copy, but the children of an EntityReference clone are readonly . In addition, clones of unspecified Attr nodes are specified. And, cloning Document, DocumentType, Entity, and Notation nodes is implementation dependent.

Specified by:

cloneNode in interface org.w3c.dom.Node

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getValue

public java.lang.String getValue()

Description copied from interface: org.w3c.dom.Attr

On retrieval, the value of the attribute is returned as a string. Character and general entity references are replaced with their values. See also the method getAttribute on the Element interface.
On setting, this creates a Text node with the unparsed contents of the string. I.e. any characters that an XML processor would recognize as markup are instead treated as literal text. See also the method setAttribute on the Element interface.

Specified by:

getValue in interface org.w3c.dom.Attr

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setValue

public void setValue(java.lang.String value)
              throws org.w3c.dom.DOMException

Description copied from class: org.apache.xerces.dom.AttrImpl

The DOM doesn't clearly define what setValue(null) means. I've taken it as "remove all children", which from outside should appear similar to setting it to the empty string.

Specified by:

setValue in interface org.w3c.dom.Attr

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getNodeValue

public java.lang.String getNodeValue()
                              throws org.w3c.dom.DOMException

Description copied from interface: org.w3c.dom.Node

The value of this node, depending on its type; see the table above. When it is defined to be null, setting it has no effect.

Specified by:

getNodeValue in interface org.w3c.dom.Node

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setNodeValue

public void setNodeValue(java.lang.String nodeValue)
                  throws org.w3c.dom.DOMException

Description copied from class: org.apache.xerces.dom.AttrImpl

Implicit in the rerouting of getNodeValue to getValue is the need to redefine setNodeValue, for symmetry's sake. Note that since we're explicitly providing a value, Specified should be set true.... even if that value equals the default.

Specified by:

setNodeValue in interface org.w3c.dom.Node

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makeTemplateNode

public void makeTemplateNode(int nodeId)

Specified by:

makeTemplateNode in interface LazyNode

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getNodeId

public int getNodeId()

Description copied from interface: LazyNode

Get the node numeric id number.

Specified by:

getNodeId in interface LazyNode

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isTemplateNode

public boolean isTemplateNode()

Description copied from interface: LazyNode

Check if this node is a template node.

Specified by:

isTemplateNode in interface LazyNode

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getTemplateNode

public LazyNode getTemplateNode()

Description copied from interface: LazyNode

Get the template node as a LazyNode.

Specified by:

getTemplateNode in interface LazyNode

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templateClone

public LazyNode templateClone(org.w3c.dom.Document ownerDocument)

Description copied from interface: LazyNode

Create a new node, using this node as the template.

Specified by:

templateClone in interface LazyNode

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isParentExpanded

public boolean isParentExpanded()

Description copied from interface: LazyParent

Is the parent of this node expanded?

Specified by:

isParentExpanded in interface LazyParent

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setParentExpanded

public void setParentExpanded()

Description copied from interface: LazyParent

Flag the parent as being expanded.

Specified by:

setParentExpanded in interface LazyParent

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setParentWhileExpanding

public void setParentWhileExpanding(org.w3c.dom.Node parent)

Description copied from interface: LazyParent

Set the parent of this node during expansion. This should also flag the parent as being expanded.

Specified by:

setParentWhileExpanding in interface LazyParent

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areChildrenExpanded

public boolean areChildrenExpanded()

Description copied from interface: LazyParent

Are the children of this node expanded?

Specified by:

areChildrenExpanded in interface LazyParent

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setChildrenExpanded

public void setChildrenExpanded()

Description copied from interface: LazyParent

Flag the children as being expanded.

Specified by:

setChildrenExpanded in interface LazyParent

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appendChildWhileExpanding

public void appendChildWhileExpanding(org.w3c.dom.Node child)

Description copied from interface: LazyParent

Append a child during node expansion. This should only add the child, not trigger any other expansion.

Specified by:

appendChildWhileExpanding in interface LazyParent

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expandParent

private void expandParent()

Expand the parent of this element, if it is not already expanded.

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expandChildren

private void expandChildren()

Expand the children of this element, if they are not already expanded.

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getParentNode

public org.w3c.dom.Node getParentNode()

Description copied from interface: org.w3c.dom.Node

The parent of this node. All nodes, except 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.

Specified by:

getParentNode in interface org.w3c.dom.Node

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getChildNodes

public org.w3c.dom.NodeList getChildNodes()

Description copied from interface: org.w3c.dom.Node

A NodeList that contains all children of this node. If there are no children, this is a NodeList containing no nodes.

Specified by:

getChildNodes in interface org.w3c.dom.Node

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getFirstChild

public org.w3c.dom.Node getFirstChild()

Description copied from interface: org.w3c.dom.Node

The first child of this node. If there is no such node, this returns null.

Specified by:

getFirstChild in interface org.w3c.dom.Node

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getLastChild

public org.w3c.dom.Node getLastChild()

Description copied from interface: org.w3c.dom.Node

The last child of this node. If there is no such node, this returns null.

Specified by:

getLastChild in interface org.w3c.dom.Node

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getPreviousSibling

public org.w3c.dom.Node getPreviousSibling()

Description copied from interface: org.w3c.dom.Node

The node immediately preceding this node. If there is no such node, this returns null.

Specified by:

getPreviousSibling in interface org.w3c.dom.Node

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getNextSibling

public org.w3c.dom.Node getNextSibling()

Description copied from interface: org.w3c.dom.Node

The node immediately following this node. If there is no such node, this returns null.

Specified by:

getNextSibling in interface org.w3c.dom.Node

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insertBefore

public org.w3c.dom.Node insertBefore(org.w3c.dom.Node newChild,
                                     org.w3c.dom.Node refChild)
                              throws org.w3c.dom.DOMException

Description copied from interface: org.w3c.dom.Node

Inserts the node newChild before the existing child node refChild. If refChild is null, insert newChild at the end of the list of children.
If 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.

Specified by:

insertBefore in interface org.w3c.dom.Node

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replaceChild

public org.w3c.dom.Node replaceChild(org.w3c.dom.Node newChild,
                                     org.w3c.dom.Node oldChild)
                              throws org.w3c.dom.DOMException

Description copied from interface: org.w3c.dom.Node

Replaces the child node oldChild with newChild in the list of children, and returns the oldChild node.
If 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.

Specified by:

replaceChild in interface org.w3c.dom.Node

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removeChild

public org.w3c.dom.Node removeChild(org.w3c.dom.Node oldChild)
                             throws org.w3c.dom.DOMException

Description copied from interface: org.w3c.dom.Node

Removes the child node indicated by oldChild from the list of children, and returns it.

Specified by:

removeChild in interface org.w3c.dom.Node

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appendChild

public org.w3c.dom.Node appendChild(org.w3c.dom.Node newChild)
                             throws org.w3c.dom.DOMException

Description copied from interface: org.w3c.dom.Node

Adds the node newChild to the end of the list of children of this node. If the newChild is already in the tree, it is first removed.

Specified by:

appendChild in interface org.w3c.dom.Node

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hasChildNodes

public boolean hasChildNodes()

Description copied from interface: org.w3c.dom.Node

Returns whether this node has any children.

Specified by:

hasChildNodes in interface org.w3c.dom.Node

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normalize

public void normalize()

Description copied from interface: org.w3c.dom.Node

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. 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.

Specified by:

normalize in interface org.w3c.dom.Node

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toString

public java.lang.String toString()

Return string for debugging. Xerces toString() method calls getValue(), which can cause expansion, so we override.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> enhydra >> xml >> [ lazydom overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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