org.oddjob.arooa.handlers
Class SerializedComponentHandler

java.lang.Object
  org.oddjob.arooa.ArooaHandler
      org.oddjob.arooa.handlers.SerializedComponentHandler

public class SerializedComponentHandler

extends ArooaHandler

This handler attempts to load components as serialised objects from the file system. If the component has an id, this handler will check the file system, otherwise it delegates to a delegate handler to handle the component.

Once the component has been created, runtime attributes and child elements are set as normal.

See Also:

ArooaHandler

Author:

Rob Gordon

Constructor Summary

SerializedComponentHandler(ArooaHandler delegate, ComponentRestorer componentRestorer)
Constructor.

Method Summary

void	characters(char[] buf, int start, int count, ArooaContext context) Adds text to the component, using the wrapper
void	onEndChild(java.lang.String uri, java.lang.String tag, java.lang.String qname, ArooaContext context) Handle the end of a child.
void	onEndElement(java.lang.String uri, java.lang.String tag, ArooaContext context) Handles the end of the element.
ArooaHandler	onStartChild(java.lang.String uri, java.lang.String tag, java.lang.String qname, org.xml.sax.Attributes attrs, ArooaContext context) Handle a child tag.
void	onStartElement(java.lang.String uri, java.lang.String tag, java.lang.String qname, org.xml.sax.Attributes attrs, ArooaContext context) Handles the start of an element.

Methods inherited from class org.oddjob.arooa.ArooaHandler

checkNamespace

Methods inherited from class java.lang.Object

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

Constructor Detail

SerializedComponentHandler

public SerializedComponentHandler(ArooaHandler delegate,
                                  ComponentRestorer componentRestorer)

Constructor.

Method Detail

onStartElement

public void onStartElement(java.lang.String uri,
                           java.lang.String tag,
                           java.lang.String qname,
                           org.xml.sax.Attributes attrs,
                           ArooaContext context)
                    throws org.xml.sax.SAXParseException

Handles the start of an element.

Overrides:

onStartElement in class ArooaHandler

Parameters:

uri - the namespace URI for the tag

tag - The name of the element being started. Will not be null.

qname - The qualified name of the element.

attrs - Attributes of the element being started. Will not be null.

context - The context that this element is in.

Throws:

org.xml.sax.SAXParseException - if this method is not overridden, or in case of error in an overridden version

characters

public void characters(char[] buf,
                       int start,
                       int count,
                       ArooaContext context)
                throws org.xml.sax.SAXParseException

Adds text to the component, using the wrapper

Overrides:

characters in class ArooaHandler

Parameters:

buf - A character array of the text within the element. Will not be null.

start - The start element in the array.

count - The number of characters to read from the array.

context - The current context.

Throws:

org.xml.sax.SAXParseException - if the element doesn't support text

onStartChild

public ArooaHandler onStartChild(java.lang.String uri,
                                 java.lang.String tag,
                                 java.lang.String qname,
                                 org.xml.sax.Attributes attrs,
                                 ArooaContext context)
                          throws org.xml.sax.SAXParseException

Handle a child tag.

Overrides:

onStartChild in class ArooaHandler

Parameters:

uri - The namespace uri.

qname - The element qualified name.

attrs - The attributes of the element.

context - The current context.

tag - The name of the element being started. Will not be null.

Returns:

The handler that handles this subelement.

Throws:

org.xml.sax.SAXParseException - if the qualified name is not "project".

onEndChild

public void onEndChild(java.lang.String uri,
                       java.lang.String tag,
                       java.lang.String qname,
                       ArooaContext context)
                throws org.xml.sax.SAXParseException

Handle the end of a child.

Overrides:

onEndChild in class ArooaHandler

Parameters:

uri - the namespace uri of the element

tag - the tag of the element

qname - the qualified name of the element

context - the current context

Throws:

org.xml.sax.SAXParseException - if an error occurs

onEndElement

public void onEndElement(java.lang.String uri,
                         java.lang.String tag,
                         ArooaContext context)

Handles the end of the element.

Overrides:

onEndElement in class ArooaHandler

Parameters:

uri - The namespace URI for the element.

tag - The name of the element.

context - The current context.