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gnu.java.beans.decoder
Class DummyHandler  

java.lang.Object
  gnu.java.beans.decoder.DummyHandler

All Implemented Interfaces:

ElementHandler

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class DummyHandler

extends java.lang.Object

implements ElementHandler

An ElementHandler implementation that is used as an artificial root element. This avoids having to check for a null element.

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Constructor Summary
(package private)	DummyHandler()

 

Method Summary
void	characters(char[] ch, int start, int length)           Adds characters from the body of the XML tag to the buffer.
void	end(java.beans.ExceptionListener exceptionListener)           Post-processes the Context.
private  void	fail()
Context	getContext()           Returns the Context instance this handler is working on.
java.lang.Object	getObject(java.lang.String objectId)
ElementHandler	getParent()
boolean	hasFailed()           Returns whether this handler has failed.
java.lang.Class	instantiateClass(java.lang.String className)           Provides the same functionality as Class.forName() but allows the decoder to use a different class loader.
boolean	isSubelementAllowed(java.lang.String subElementName)           Returns whether a subelement of the given name is allowed.
void	notifyContextFailed()           Notifies the handler that its Context failed and starts a recursive invocation of the parent handler if it is affected by that failure.
void	notifyStatement(java.beans.ExceptionListener exceptionListener)           Notifies the handler's Context that its child Context will not return a value back.
void	putObject(java.lang.String objectId, java.lang.Object o)           Stores the object under the given id.
void	start(org.xml.sax.Attributes attributes, java.beans.ExceptionListener exceptionListener)           Evaluates the attributes and creates a Context instance.

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

DummyHandler

DummyHandler()

Method Detail

start

public void start(org.xml.sax.Attributes attributes,
                  java.beans.ExceptionListener exceptionListener)

Description copied from interface: ElementHandler

Evaluates the attributes and creates a Context instance. If the creation of the Context instance fails the ElementHandler is marked as failed which may affect the parent handler other.

Specified by:

start in interface ElementHandler

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end

public void end(java.beans.ExceptionListener exceptionListener)

Description copied from interface: ElementHandler

Post-processes the Context.

Specified by:

end in interface ElementHandler

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characters

public void characters(char[] ch,
                       int start,
                       int length)

Description copied from interface: ElementHandler

Adds characters from the body of the XML tag to the buffer.

Specified by:

characters in interface ElementHandler

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isSubelementAllowed

public boolean isSubelementAllowed(java.lang.String subElementName)

Description copied from interface: ElementHandler

Returns whether a subelement of the given name is allowed. The rules for evaluating this are derived from the javabeans.dtd which can be found here: Java Persistence Article.

Specified by:

isSubelementAllowed in interface ElementHandler

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instantiateClass

public java.lang.Class instantiateClass(java.lang.String className)
                                 throws java.lang.ClassNotFoundException

Description copied from interface: ElementHandler

Provides the same functionality as Class.forName() but allows the decoder to use a different class loader.

Specified by:

instantiateClass in interface ElementHandler

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notifyStatement

public void notifyStatement(java.beans.ExceptionListener exceptionListener)

Description copied from interface: ElementHandler

Notifies the handler's Context that its child Context will not return a value back. Some Context variants need this information to know when a method or a constructor call can be made. This method is called by a child handler.

Specified by:

notifyStatement in interface ElementHandler

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hasFailed

public boolean hasFailed()

Description copied from interface: ElementHandler

Returns whether this handler has failed. This is used to skip child elements.

Specified by:

hasFailed in interface ElementHandler

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getContext

public Context getContext()

Description copied from interface: ElementHandler

Returns the Context instance this handler is working on.

Specified by:

getContext in interface ElementHandler

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notifyContextFailed

public void notifyContextFailed()

Description copied from interface: ElementHandler

Notifies the handler that its Context failed and starts a recursive invocation of the parent handler if it is affected by that failure. Although the method is a public API member it is only used internally.

Specified by:

notifyContextFailed in interface ElementHandler

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putObject

public void putObject(java.lang.String objectId,
                      java.lang.Object o)

Description copied from interface: ElementHandler

Stores the object under the given id. The object is not stored if the id is null.

Specified by:

putObject in interface ElementHandler

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getObject

public java.lang.Object getObject(java.lang.String objectId)

Specified by:

getObject in interface ElementHandler

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getParent

public ElementHandler getParent()

Specified by:

getParent in interface ElementHandler

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fail

private void fail()

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> gnu >> java >> beans >> [ decoder overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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