com.google.gdata.data

Class ExtensionPoint.ExtensionHandler

java.lang.Object

com.google.gdata.util.XmlParser.ElementHandler

com.google.gdata.data.AbstractExtension.AttributesHandler

com.google.gdata.data.ExtensionPoint.ExtensionHandler

Direct Known Subclasses:

BaseEntry.AtomHandler, Categories.Handler, Collection.Handler, ExtensionDescription.Handler, Link.AtomHandler, OpenSearchDescriptionDocument.Handler, Person.AtomHandler, PubControl.AtomHandler, ServiceDocument.Handler, SitemapMobile.Handler, SitemapNews.Handler, Source.SourceHandler, W3CPoint.Handler, Who.Handler, Workspace.Handler

Enclosing class:

ExtensionPoint

public class ExtensionPoint.ExtensionHandler
extends AbstractExtension.AttributesHandler

ElementHandler implementation for handlers associated with an ExtensionPoint class. Provides common initialization and code for looking up handlers defined within the ExtensionProfile associated with the ExtensionPoint.

Field Summary

Fields

Modifier and Type	Field and Description
protected Class<? extends ExtensionPoint>	extendedClass
protected ExtensionManifest	extManifest
protected ExtensionProfile	extProfile
protected boolean	hasExtensions

Fields inherited from class com.google.gdata.util.XmlParser.ElementHandler

qName, value, xmlBase, xmlLang

Constructor Summary

Constructors

Constructor and Description
ExtensionPoint.ExtensionHandler(ExtensionProfile profile, Class<? extends ExtensionPoint> extendedClass) Constructs a new Handler instance that process extensions on a class associated with the ExtensionPoint.
ExtensionPoint.ExtensionHandler(ExtensionProfile profile, Class<? extends ExtensionPoint> extendedClass, Attributes attrs) Constructs a new Handler instance that process extensions on a class associated with the ExtensionPoint, and consumes the attributes.

Method Summary

Methods

Modifier and Type	Method and Description
XmlParser.ElementHandler	getChildHandler(String namespace, String localName, Attributes attrs) Determines a handler for a child element.
void	processEndElement() Called to process this element when the closing tag is encountered.

Methods inherited from class com.google.gdata.util.XmlParser.ElementHandler

getAbsoluteUri, getBooleanAttribute, getChildHandler, initializeXmlBlob, parseBooleanValue, processAttribute, processAttribute

Methods inherited from class java.lang.Object

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

Field Detail

extProfile

protected ExtensionProfile extProfile

extendedClass

protected Class<? extends ExtensionPoint> extendedClass

hasExtensions

protected boolean hasExtensions

extManifest

protected ExtensionManifest extManifest

Constructor Detail

ExtensionPoint.ExtensionHandler

public ExtensionPoint.ExtensionHandler(ExtensionProfile profile,
                               Class<? extends ExtensionPoint> extendedClass)

Constructs a new Handler instance that process extensions on a class associated with the ExtensionPoint. e

Parameters:

profile - The extension profile associatd with the Handler.

extendedClass - The extended class within the profile for this handler

ExtensionPoint.ExtensionHandler

public ExtensionPoint.ExtensionHandler(ExtensionProfile profile,
                               Class<? extends ExtensionPoint> extendedClass,
                               Attributes attrs)

Constructs a new Handler instance that process extensions on a class associated with the ExtensionPoint, and consumes the attributes.

Parameters:

profile - The extension profile associatd with the Handler.

extendedClass - The extended class within the profile for this handler

attrs - XML attributes or null to suppress the use of AttributeHelper

Method Detail

getChildHandler

public XmlParser.ElementHandler getChildHandler(String namespace,
                                       String localName,
                                       Attributes attrs)
                                         throws ParseException,
                                                IOException

Description copied from class: XmlParser.ElementHandler

Determines a handler for a child element.

The default implementation doesn't recognize anything. The result is a schema error unless the parent handler accepts unrecognized XML. XmlParser. localname/namespace.

Overrides:

getChildHandler in class XmlParser.ElementHandler

Parameters:

namespace - Child element namespace URI.

localName - Child element name.

attrs - Child element attributes. These attributes will be communicated to the child element handler through its XmlParser.ElementHandler.processAttribute(java.lang.String, java.lang.String, java.lang.String, java.lang.String) method. They are passed here because sometimes the value of some attribute determines the element's content type, so different element handlers may be needed.

Returns:

Child element handler, or null if the child is unrecognized.

Throws:

ParseException - Invalid child element.

IOException - Internal I/O exception (e.g., thrown by XML blob writer).

processEndElement

public void processEndElement()
                       throws ParseException

Description copied from class: XmlParser.ElementHandler

Called to process this element when the closing tag is encountered. The default implementation refuses to accept text() content, unless the handler is configured to accept unrecognized XML with mixed content.

Overrides:

processEndElement in class AbstractExtension.AttributesHandler

Throws:

ParseException