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gnu.java.beans.decoder
Class FloatHandler  

java.lang.Object
  gnu.java.beans.decoder.AbstractElementHandler
      gnu.java.beans.decoder.SimpleHandler
          gnu.java.beans.decoder.FloatHandler

All Implemented Interfaces:

ElementHandler

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class FloatHandler

extends SimpleHandler

Creates a Float instance from the character data in a <float> tag.

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Constructor Summary
(package private)	FloatHandler(ElementHandler parent)

 

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.
void	endElement(java.lang.String characters)           Processes the character data when the element ends.
Context	getContext()           Returns the Context instance this handler is working on.
java.lang.Object	getObject(java.lang.String objectId)           Returns a previously stored object.
ElementHandler	getParent()
boolean	hasFailed()           Returns whether this handler has failed.
java.lang.Class	instantiateClass(java.lang.String className)           Returns the Class instance as if called Class.forName() but uses a ClassLoader given by the user.
boolean	isSubelementAllowed(java.lang.String subElementName)           Returns whether a subelement of the given name is allowed.
void	notifyContextFailed()           Marks this and any depending parent handlers as failed.
void	notifyStatement(java.beans.ExceptionListener exceptionListener)           Notifies the handler's Context that its child Context will not return a value back.
protected  java.lang.Object	parse(java.lang.String number)           Returns an object that is created from the given characters.
void	putObject(java.lang.String objectId, java.lang.Object o)           Stores an object globally under a unique id.
void	start(org.xml.sax.Attributes attributes, java.beans.ExceptionListener exceptionListener)           Evaluates the attributes and creates a Context instance.
protected  Context	startElement(org.xml.sax.Attributes attributes, java.beans.ExceptionListener exceptionListener)           Analyses the content of the Attributes instance and creates a Context object accordingly.

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

FloatHandler

FloatHandler(ElementHandler parent)

Method Detail

parse

protected java.lang.Object parse(java.lang.String number)
                          throws java.lang.NumberFormatException

Description copied from class: SimpleHandler

Returns an object that is created from the given characters. If the string is converted into a number a NumberFormatException is cathed and reported appropriately.

Specified by:

parse in class SimpleHandler

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startElement

protected final Context startElement(org.xml.sax.Attributes attributes,
                                     java.beans.ExceptionListener exceptionListener)
                              throws AssemblyException

Description copied from class: AbstractElementHandler

Analyses the content of the Attributes instance and creates a Context object accordingly. An AssemblerException is thrown when the Context instance could not be created.

Specified by:

startElement in class AbstractElementHandler

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endElement

public void endElement(java.lang.String characters)
                throws AssemblyException,
                       AssemblyException

Description copied from class: AbstractElementHandler

Processes the character data when the element ends. The default implementation does nothing for convenience.

Overrides:

endElement in class AbstractElementHandler

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start

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

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 final void end(java.beans.ExceptionListener exceptionListener)

Post-processes the Context.

Specified by:

end in interface ElementHandler

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notifyStatement

public void notifyStatement(java.beans.ExceptionListener exceptionListener)

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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notifyContextFailed

public final void notifyContextFailed()

Marks this and any depending parent handlers as failed. Which means that on their end no result is calculated. When a handler has failed no more handlers are accepted within it.

Specified by:

notifyContextFailed in interface ElementHandler

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hasFailed

public final boolean hasFailed()

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

Specified by:

hasFailed in interface ElementHandler

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characters

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

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

Specified by:

characters in interface ElementHandler

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putObject

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

Stores an object globally under a unique id. If the id is null the object is not stored.

Specified by:

putObject in interface ElementHandler

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getObject

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

Returns a previously stored object. If the id is null the result is null, too.

Specified by:

getObject in interface ElementHandler

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instantiateClass

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

Returns the Class instance as if called Class.forName() but uses a ClassLoader given by the user.

Specified by:

instantiateClass in interface ElementHandler

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isSubelementAllowed

public final 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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getContext

public final 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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getParent

public final ElementHandler getParent()

Specified by:

getParent in interface ElementHandler

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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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