Class AbstractContentSelector

java.lang.Object

org.apache.batik.bridge.svg12.AbstractContentSelector

Direct Known Subclasses:

DefaultContentSelector, XPathPatternContentSelector, XPathSubsetContentSelector

public abstract class AbstractContentSelector
extends Object

A base class for handlers of different XBL content element includes attribute syntaxes.

Version:

$Id$

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static interface	AbstractContentSelector.ContentSelectorFactory	An interface for content selector factories.
protected static class	AbstractContentSelector.XPathPatternContentSelectorFactory	A factory for XPathPatternContentSelector objects.
protected static class	AbstractContentSelector.XPathSubsetContentSelectorFactory	A factory for XPathSubsetContentSelector objects.

Field Summary

Fields

Modifier and Type	Field	Description
protected Element	boundElement	The bound element.
protected XBLOMContentElement	contentElement	The XBL content element.
protected ContentManager	contentManager	The ContentManager object that owns this selector.
protected static HashMap	selectorFactories	Map of selector languages to factories.

Constructor Summary

Constructors

Constructor	Description
AbstractContentSelector(ContentManager cm, XBLOMContentElement content, Element bound)	Creates a new AbstractContentSelector object.

Method Summary

Modifier and Type	Method	Description
static AbstractContentSelector	createSelector(String selectorLanguage, ContentManager cm, XBLOMContentElement content, Element bound, String selector)	Creates a new selector object.
abstract NodeList	getSelectedContent()	Returns a list of nodes that were matched by this selector.
protected boolean	isSelected(Node n)	Returns true if the given node has already been selected by a content element.
(package private) abstract boolean	update()	Forces this selector to update its selected nodes list.

Methods inherited from class Object

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

Field Details

contentManager

protected ContentManager contentManager

The ContentManager object that owns this selector.

contentElement

protected XBLOMContentElement contentElement

The XBL content element.

boundElement

protected Element boundElement

The bound element.

selectorFactories

protected static HashMap selectorFactories

Map of selector languages to factories.

Constructor Details

AbstractContentSelector

public AbstractContentSelector(ContentManager cm,
 XBLOMContentElement content,
 Element bound)

Creates a new AbstractContentSelector object.

Method Details

getSelectedContent

public abstract NodeList getSelectedContent()

Returns a list of nodes that were matched by this selector.

update

abstract boolean update()

Forces this selector to update its selected nodes list. Returns true if the selected node list needed updating. This assumes that the previous content elements in this shadow tree (in document order) have up-to-date selectedContent lists.

isSelected

protected boolean isSelected(Node n)

Returns true if the given node has already been selected by a content element.

createSelector

public static AbstractContentSelector createSelector(String selectorLanguage,
 ContentManager cm,
 XBLOMContentElement content,
 Element bound,
 String selector)

Creates a new selector object.

Parameters:

content - The content element using this selector.

bound - The bound element whose children will be selected.

selector - The selector string.