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com.voytechs.html.event
Class HtmlDispatcher  

java.lang.Object
  com.voytechs.html.event.Dispatcher
      com.voytechs.html.event.HtmlDispatcher

Direct Known Subclasses:

ServletDispatcher

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public class HtmlDispatcher

extends Dispatcher

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Field Summary
static int	EVENT_CHECKED_MASK
static int	EVENT_DEFAULT_MASK
static int	EVENT_HIDDEN_MASK
static int	EVENT_LINK_MASK
static int	EVENT_LIST_MASK
static int	EVENT_PASSWORD_MASK
static int	EVENT_RADIO_MASK
static int	EVENT_SUBMIT_MASK
static int	EVENT_TEXTAREA_MASK
static int	EVENT_TEXTFIELD_MASK
private  java.util.Hashtable	eventTypeIDs
private  java.util.Hashtable	eventTypeStrings

 

Fields inherited from class com.voytechs.html.event.Dispatcher

 

Constructor Summary

HtmlDispatcher()

 

Method Summary
protected  HtmlEvent	decodeParam(java.lang.String param, java.lang.String[] value)           decode an encoded parameter from Properties object.
protected  void	dispatchEvent(ListenerIf listener, Event event, java.lang.Object data)           Dispatches event to a proper listener.
protected  java.lang.String	encodeParam(int eventType, int id)           decode an encoded parameter from Properties object.
java.lang.String	generateUniqName(int eventType, int id)           Generate a uniq name based on event type and id.
private  void	init()           Initialize the various HTML related event types that we support.
static void	main(java.lang.String[] args)           Test function for HtmlDispatcher
protected  void	registerEventType(int eventType, char eventAbr)           Register/create a new event type so it can be known and encoded.
void	scanEvent(java.lang.Object source)           Scan source object in form of Properties.

 

Methods inherited from class com.voytechs.html.event.Dispatcher

addListener, addListener, enableEvents, generateUniqId, handleEvent, isEventEnabled, registerEventType, removeListener, removeSource

 

Methods inherited from class java.lang.Object

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

 

Field Detail

EVENT_SUBMIT_MASK

public static final int EVENT_SUBMIT_MASK

See Also:

Constant Field Values

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EVENT_PASSWORD_MASK

public static final int EVENT_PASSWORD_MASK

See Also:

Constant Field Values

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EVENT_TEXTAREA_MASK

public static final int EVENT_TEXTAREA_MASK

See Also:

Constant Field Values

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EVENT_TEXTFIELD_MASK

public static final int EVENT_TEXTFIELD_MASK

See Also:

Constant Field Values

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EVENT_LIST_MASK

public static final int EVENT_LIST_MASK

See Also:

Constant Field Values

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EVENT_CHECKED_MASK

public static final int EVENT_CHECKED_MASK

See Also:

Constant Field Values

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EVENT_RADIO_MASK

public static final int EVENT_RADIO_MASK

See Also:

Constant Field Values

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EVENT_HIDDEN_MASK

public static final int EVENT_HIDDEN_MASK

See Also:

Constant Field Values

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EVENT_LINK_MASK

public static final int EVENT_LINK_MASK

See Also:

Constant Field Values

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EVENT_DEFAULT_MASK

public static final int EVENT_DEFAULT_MASK

See Also:

Constant Field Values

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eventTypeStrings

private java.util.Hashtable eventTypeStrings

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eventTypeIDs

private java.util.Hashtable eventTypeIDs

Constructor Detail

HtmlDispatcher

public HtmlDispatcher()

Method Detail

init

private void init()

Initialize the various HTML related event types that we support.

• Submit button press
• Reset button press
• Text area
• Text field
• List box
• Check boxes
• Radio boxes
• Hidden input field (way of passing hidden info)
• Link - Hypertext link
• Default parameters which are none of the above

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registerEventType

protected void registerEventType(int eventType,
                                 char eventAbr)

Register/create a new event type so it can be known and encoded.

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scanEvent

public void scanEvent(java.lang.Object source)
               throws EventException

Scan source object in form of Properties.

Specified by:

scanEvent in class Dispatcher

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dispatchEvent

protected void dispatchEvent(ListenerIf listener,
                             Event event,
                             java.lang.Object data)
                      throws EventException

Dispatches event to a proper listener.

Specified by:

dispatchEvent in class Dispatcher

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decodeParam

protected HtmlEvent decodeParam(java.lang.String param,
                                java.lang.String[] value)
                         throws EventException

decode an encoded parameter from Properties object. In essence a where param is a specially encoded, uniq string which encodes information as to the type of the object. These are mapped a uniq integer ID which the dispatcher uses to hash entries for.
Encoding is as follows: [type]_[id]
where type is a one letter string representing the type of element on the form and id is uniq integer ID associated with that instance of the form element.

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encodeParam

protected java.lang.String encodeParam(int eventType,
                                       int id)
                                throws EventException

decode an encoded parameter from Properties object. In essence a where param is a specially encoded, uniq string which encodes information as to the type of the object. These are mapped a uniq integer ID which the dispatcher uses to hash entries for.
Encoding is as follows: [type]_[id]
where type is a one letter string representing the type of element on the form and id is uniq integer ID associated with that instance of the form element.

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generateUniqName

public java.lang.String generateUniqName(int eventType,
                                         int id)
                                  throws EventException

Generate a uniq name based on event type and id.

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main

public static void main(java.lang.String[] args)

Test function for HtmlDispatcher

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> com >> voytechs >> html >> [ event overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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