Module com.github.librepdf.openpdf.parent

Package org.openpdf.css.extend.lib

Class DOMTreeResolver

java.lang.Object

org.openpdf.css.extend.lib.DOMTreeResolver

All Implemented Interfaces:

TreeResolver

public class DOMTreeResolver
extends Object
implements TreeResolver

works for a w3c DOM tree

Author:

scott

Field Summary

Fields inherited from interface org.openpdf.css.extend.TreeResolver

NO_NAMESPACE

Constructor Summary

Constructors

Constructor	Description
DOMTreeResolver()

Method Summary

Modifier and Type	Method	Description
String	getElementName(Node element)	returns the name of the element so that it may match against the selectors
@Nullable Node	getParentElement(Node element)	returns the parent element of an element, or null if this was the root element
int	getPositionOfElement(Node element)	Returns the index of the position of the submitted element among its element node siblings.
@Nullable Node	getPreviousSiblingElement(Node element)	The previous sibling element, or null if none exists
boolean	isFirstChildElement(Node element)	returns true if this element is the first child element of its parent
boolean	isLastChildElement(Node element)	returns true if this element is the last child element of its parent
boolean	matchesElement(Node element, String namespaceURI, String name)	Returns true if element has the local name name and namespace URI namespaceURI.

Methods inherited from class java.lang.Object

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

Constructor Details

DOMTreeResolver

public DOMTreeResolver()

Method Details

getParentElement

public @Nullable Node getParentElement(Node element)

Description copied from interface: TreeResolver

returns the parent element of an element, or null if this was the root element

Specified by:

getParentElement in interface TreeResolver

getPreviousSiblingElement

public @Nullable Node getPreviousSiblingElement(Node element)

Description copied from interface: TreeResolver

The previous sibling element, or null if none exists

Specified by:

getPreviousSiblingElement in interface TreeResolver

getElementName

public String getElementName(Node element)

Description copied from interface: TreeResolver

returns the name of the element so that it may match against the selectors

Specified by:

getElementName in interface TreeResolver

isFirstChildElement

public boolean isFirstChildElement(Node element)

Description copied from interface: TreeResolver

returns true if this element is the first child element of its parent

Specified by:

isFirstChildElement in interface TreeResolver

isLastChildElement

public boolean isLastChildElement(Node element)

Description copied from interface: TreeResolver

returns true if this element is the last child element of its parent

Specified by:

isLastChildElement in interface TreeResolver

matchesElement

public boolean matchesElement(Node element,
 String namespaceURI,
 String name)

Description copied from interface: TreeResolver

Returns true if element has the local name name and namespace URI namespaceURI.

Specified by:

matchesElement in interface TreeResolver

Parameters:

element - The node

namespaceURI - The namespace to match, may be null to signify any namespace. Use TreeResolver.NO_NAMESPACE to signify that name should only match when there is no namespace defined on element.

name - The name to match, may not be null

getPositionOfElement

public int getPositionOfElement(Node element)

Description copied from interface: TreeResolver

Returns the index of the position of the submitted element among its element node siblings.

Specified by:

getPositionOfElement in interface TreeResolver

Parameters:

element - The node

Returns:

-1 in case of error, 0 indexed position otherwise