swishej
Class SearchApplet

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--java.awt.Panel
                    |
                    +--java.applet.Applet
                          |
                          +--swishej.SearchApplet

public class SearchApplet

extends java.applet.Applet

Class implementing the search applet for SWISH-E indices.

See Also:

Serialized Form

Inner classes inherited from class java.awt.Component

java.awt.Component.AWTTreeLock

Field Summary

(package private) java.lang.String[]	data String array for passing arguments to JavaScript.
(package private) java.awt.Button	doClear The "Clear" button.
(package private) java.awt.Button	doHelp The "Help" button.
(package private) java.awt.Button	doSearch The "Search" button.
(package private) java.awt.Button	doWords The "Words" button.
(package private) java.net.URL	indexname URL of the SWISH-E index file.
(package private) IndexFile	inf Loaded index file representation.
(package private) java.awt.Label	label The keywords label field.
(package private) char[]	map Character mapping.
(package private) java.awt.Panel	p Panel for the user interface elements.
(package private) netscape.javascript.JSObject	win JavaScript window (= frame) object for displaying the search result.
(package private) java.awt.TextField	words The keyword entry field.

Fields inherited from class java.applet.Applet

serialVersionUID, stub

Fields inherited from class java.awt.Panel

base, nameCounter, serialVersionUID

Fields inherited from class java.awt.Container

component, containerListener, containerSerializedDataVersion, dispatcher, layoutMgr, maxSize, ncomponents, serialVersionUID

Fields inherited from class java.awt.Component

actionListenerK, adjustmentListenerK, appContext, assert, background, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, changeSupport, componentListener, componentListenerK, componentOrientation, componentSerializedDataVersion, containerListenerK, cursor, dropTarget, enabled, eventMask, focusListener, focusListenerK, font, foreground, hasFocus, height, incRate, inputMethodListener, inputMethodListenerK, isInc, isPacked, itemListenerK, keyListener, keyListenerK, LEFT_ALIGNMENT, locale, LOCK, minSize, mouseListener, mouseListenerK, mouseMotionListener, mouseMotionListenerK, name, nameExplicitlySet, newEventsOnly, ownedWindowK, parent, peer, peerFont, popups, prefSize, RIGHT_ALIGNMENT, serialVersionUID, textListenerK, TOP_ALIGNMENT, valid, visible, width, windowListenerK, x, y

Constructor Summary

SearchApplet()

Method Summary

boolean	action(java.awt.Event ev, java.lang.Object obj) Applet action method for starting a keyword search, clearing the result frame, or displaying the help page in the result frame.
void	addword(java.lang.String w) Add word to word text input field
void	clrwords() Clear text input field.
void	destroy() Applet destruction.
(package private) java.lang.String	fmtallwords() Format keywords as HTML
(package private) java.lang.String	fmtwords(java.lang.String first) Format keywords as HTML
java.lang.String	getAppletInfo() Applet info blurks.
java.lang.String[][]	getParameterInfo() Return information about applet parameters.
void	init() Applet initialization.
java.awt.Insets	insets() Request additional space for 3D border.
static void	main(java.lang.String[] args) If started as application, this method runs a search on the local file "index.swish-e" with the keywords taken from the command line.
void	paint(java.awt.Graphics g) Paint method of applet panel, draws 3D border.
(package private) int	remap(char[] map, int i) Character mapping function.
(package private) java.lang.String	remap(char[] map, java.lang.String s) Character mapping function.
void	showwords(java.lang.String w) Display word list given start character
void	start() Applet startup.
void	stop() Applet stop.

Methods inherited from class java.applet.Applet

getAppletContext, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, isActive, newAudioClip, play, play, resize, resize, setStub, showStatus

Methods inherited from class java.awt.Panel

, addNotify, constructComponentName

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, applyOrientation, countComponents, deliverEvent, dispatchEventImpl, dispatchEventToSelf, doLayout, eventEnabled, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents_NoClientCode, getComponents, getCursorTarget, getInsets, getLayout, getMaximumSize, getMinimumSize, getMouseEventTarget, getPreferredSize, getWindow, initIDs, invalidate, invalidateTree, isAncestorOf, layout, lightweightPrint, list, list, locate, minimumSize, nextFocus, paintComponents, paramString, postProcessKeyEvent, postsOldMouseEvents, preferredSize, preProcessKeyEvent, print, printComponents, printHeavyweightComponents, printOneComponent, processContainerEvent, processEvent, proxyEnableEvents, proxyRequestFocus, readObject, remove, remove, removeAll, removeContainerListener, removeNotify, setCursor, setFocusOwner, setFont, setLayout, transferFocus, update, updateCursor, validate, validateTree, writeObject

Methods inherited from class java.awt.Component

add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, addPropertyChangeListener, areInputMethodsEnabled, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont_NoClientCode, getFont, getFontMetrics, getForeground, getGraphics, getHeight, getInputContext, getInputMethodRequests, getIntrinsicCursor, getLocation, getLocation, getLocationOnScreen, getName, getNativeContainer, getParent_NoClientCode, getParent, getPeer, getSize, getSize, getToolkit, getToolkitImpl, getTreeLock, getWidth, getWindowForObject, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isDisplayable, isDoubleBuffered, isEnabled, isEnabledImpl, isFocusTraversable, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, setBackground, setBounds, setBounds, setComponentOrientation, setDropTarget, setEnabled, setForeground, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus

Methods inherited from class java.lang.Object

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

Field Detail

doSearch

java.awt.Button doSearch

The "Search" button.

doWords

java.awt.Button doWords

The "Words" button.

doClear

java.awt.Button doClear

The "Clear" button.

doHelp

java.awt.Button doHelp

The "Help" button.

label

java.awt.Label label

The keywords label field.

words

java.awt.TextField words

The keyword entry field.

p

java.awt.Panel p

Panel for the user interface elements.

indexname

java.net.URL indexname

URL of the SWISH-E index file.

inf

IndexFile inf

Loaded index file representation.

win

netscape.javascript.JSObject win

JavaScript window (= frame) object for displaying the search result.

data

java.lang.String[] data

String array for passing arguments to JavaScript.

map

char[] map

Character mapping.

Constructor Detail

SearchApplet

public SearchApplet()

Method Detail

init

public void init()

Applet initialization.

1. Applet parameters are retrieved.
2. The JavaScript window object for displaying the result is obtained and verified.
3. The URLs for the index file and help page are retrieved.
4. The user interface is built (3 buttons, one text entry)
5. Some JavaScript variables and functions are defined. These are needed later to display search results, to clear the result frame, and to display the help page.

Overrides:

init in class java.applet.Applet

start

public void start()

Applet startup. The index file is read.

Overrides:

start in class java.applet.Applet

stop

public void stop()

Applet stop.

Overrides:

stop in class java.applet.Applet

destroy

public void destroy()

Applet destruction. The index file reference is set to null.

Overrides:

destroy in class java.applet.Applet

action

public boolean action(java.awt.Event ev,
                      java.lang.Object obj)

Applet action method for starting a keyword search, clearing the result frame, or displaying the help page in the result frame.

Overrides:

action in class java.awt.Component

addword

public void addword(java.lang.String w)

Add word to word text input field

Parameters:

w - word to be added

clrwords

public void clrwords()

Clear text input field.

showwords

public void showwords(java.lang.String w)

Display word list given start character

Parameters:

w - string whose first character is taken as start character

insets

public java.awt.Insets insets()

Request additional space for 3D border.

Overrides:

insets in class java.awt.Container

Returns:

Insets with 2 pixel border.

paint

public void paint(java.awt.Graphics g)

Paint method of applet panel, draws 3D border.

Overrides:

paint in class java.awt.Container

Parameters:

g - Graphics object

fmtallwords

java.lang.String fmtallwords()

Format keywords as HTML

Returns:

HTML formatted word list

fmtwords

java.lang.String fmtwords(java.lang.String first)

Format keywords as HTML

Parameters:

String - which first character determines sublist output

Returns:

HTML formatted word list

getParameterInfo

public java.lang.String[][] getParameterInfo()

Return information about applet parameters.

Overrides:

getParameterInfo in class java.applet.Applet

Returns:

String array with parameter description.

getAppletInfo

public java.lang.String getAppletInfo()

Applet info blurks.

Overrides:

getAppletInfo in class java.applet.Applet

Returns:

string with copy.*t information.

remap

int remap(char[] map,
          int i)

Character mapping function.

Parameters:

i - integer to be mapped

Returns:

mapped integer

remap

java.lang.String remap(char[] map,
                       java.lang.String s)

Character mapping function.

Parameters:

s - String to be mapped

Returns:

mapped string

main

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

If started as application, this method runs a search on the local file "index.swish-e" with the keywords taken from the command line.

Parameters:

args - command line