com.elegantj.data.comp.computedfield
Class ComputedField

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              javax.swing.JLabel
                  com.elegantj.jfc.label.JFCLabel
                      com.elegantj.data.comp.label.DataLabel
                          com.elegantj.data.comp.computedfield.ComputedField

All Implemented Interfaces:

javax.accessibility.Accessible, Computable, com.elegantj.data.comp.DatabaseColumn, java.io.Externalizable, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.swing.SwingConstants

public class ComputedField

extends com.elegantj.data.comp.label.DataLabel

implements java.io.Externalizable, Computable

This bean component allows the user to get the look and feel of JFCLabel and functionality of DatabaseColumn.

This bean provides the expression executor to parse the expression (arithmetical/database related) and to execute it. It also provides the support to the MethodsClass to get the functionality of the database related activities.

This bean provides powerful designing aspects by providing following user friendly property
Expression the expression string to be executed

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class javax.swing.JLabel

javax.swing.JLabel.AccessibleJLabel

Nested classes inherited from class javax.swing.JComponent

javax.swing.JComponent.AccessibleJComponent

Nested classes inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Nested classes inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

com.elegantj.editors.C1

c1

Fields inherited from class javax.swing.JLabel

labelFor

Fields inherited from class javax.swing.JComponent

accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface javax.swing.SwingConstants

BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

ComputedField()
Creates a ComputedField

Method Summary

java.lang.Object	executeExp() Executes the expression
java.util.Vector	getColumnData(int colIndex) Returns the column values of the column at colIndex
java.util.Vector	getColumnData(java.lang.String colName) Returns the column values of the column colName
int	getColumnIndex(java.lang.String colName) Returns the index for the specified column
java.util.Vector	getColumnNames() Returns the column names
int	getCurrentIndex() Returns the current index
int	getCurrentPage() Returns the current vertical page index
int	getCurrentPageAcross() Returns the current horizontal page index
java.util.Vector	getCurrentRecord() Returns the current record
java.util.Vector	getData() Returns the data for computation
java.lang.String	getExpression() Gets the expression string to be executed
java.lang.String	getLicenseKey() Gets the license key
java.lang.String[]	getMethods() Returns the valid methods to use in the expression
java.lang.String[]	getOperators() Returns the valid operators to use in the expression
int	getPageAcrossCount() Returns the horizontal page count
int	getPageCount() Returns the vertical page count
void	readExternal(java.io.ObjectInput in) Externalizable interface implementation to save and retrieve the state of this bean
void	setColumnNames(java.util.Vector columnNames) Sets the column names
void	setCurrentIndex(int index) Sets the current index
void	setCurrentPage(int n) Sets the current vertical page index
void	setCurrentPageAcross(int n) Sets the current horizontal page index
void	setData(java.util.Vector data) Sets the data for computation
void	setExpression(java.lang.String exp) Sets the expression string to be executed
void	setLicenseKey(java.lang.String key) Sets the license key
void	setPageAcrossCount(int n) Sets the horizontal page count
void	setPageCount(int n) Sets the vertical page count
boolean	verifyExp() Checks the expression whether it is valid or not
void	writeExternal(java.io.ObjectOutput out) Externalizable interface implementation to save and retrieve the state of this bean

Methods inherited from class com.elegantj.data.comp.label.DataLabel

getBandName, getColumnName, getColumnNo, getDataDisplayValues, getDataValue, getDefaultValue, getDisplayValue, isColumnField, isLayered, setBandName, setColumnName, setColumnNo, setDataDisplayValues, setDataValue, setDefaultValue, setDisplayValue, setLayered

Methods inherited from class com.elegantj.jfc.label.JFCLabel

addPropertyChangeListener, getDisabledIconPath, getIconPath, getInsets, getLocale, getMnemonic, isLightweight, removePropertyChangeListener, setAutoscrolls, setBackground, setBorder, setBounds, setCursor, setDisabledIconPath, setDoubleBuffered, setEnabled, setFont, setForeground, setHorizontalAlignment, setHorizontalTextPosition, setIconPath, setIconTextGap, setInsets, setLabelFor, setLayout, setLightweight, setLocale, setMnemonic, setOpaque, setRequestFocusEnabled, setText, setToolTipText, setVerticalAlignment, setVerticalTextPosition, setVisible

Methods inherited from class javax.swing.JLabel

checkHorizontalKey, checkVerticalKey, getAccessibleContext, getDisabledIcon, getDisplayedMnemonic, getDisplayedMnemonicIndex, getHorizontalAlignment, getHorizontalTextPosition, getIcon, getIconTextGap, getLabelFor, getText, getUI, getUIClassID, getVerticalAlignment, getVerticalTextPosition, imageUpdate, paramString, setDisabledIcon, setDisplayedMnemonic, setDisplayedMnemonic, setDisplayedMnemonicIndex, setIcon, setUI, updateUI

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addPropertyChangeListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getGraphics, getHeight, getInputMap, getInputMap, getInputVerifier, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPreferredSize, getPropertyChangeListeners, getPropertyChangeListeners, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isPreferredSizeSet, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removePropertyChangeListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setDebugGraphicsOptions, setDefaultLocale, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setPreferredSize, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, unregisterKeyboardAction, update

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, transferFocusBackward, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, repaint, repaint, repaint, resize, resize, setBounds, setComponentOrientation, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.elegantj.data.comp.DatabaseColumn

isEnabled, setEnabled

Field Detail

c1

public transient com.elegantj.editors.C1 c1

Constructor Detail

ComputedField

public ComputedField()

Creates a ComputedField

Method Detail

setLicenseKey

public void setLicenseKey(java.lang.String key)

Sets the license key

Parameters:

key - the license key

getLicenseKey

public java.lang.String getLicenseKey()

Gets the license key

Returns:

the license key

setExpression

public void setExpression(java.lang.String exp)

Sets the expression string to be executed

Specified by:

setExpression in interface Computable

Parameters:

exp - the expression string

getExpression

public java.lang.String getExpression()

Gets the expression string to be executed

Specified by:

getExpression in interface Computable

Returns:

the expression string

verifyExp

public boolean verifyExp()

Checks the expression whether it is valid or not

Specified by:

verifyExp in interface Computable

Returns:

true, if an expression is valid, otherwise false

executeExp

public java.lang.Object executeExp()

Executes the expression

Specified by:

executeExp in interface Computable

Returns:

the result of the expression

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Externalizable interface implementation to save and retrieve the state of this bean

Specified by:

writeExternal in interface java.io.Externalizable

Throws:

java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Description copied from class: com.elegantj.data.comp.label.DataLabel

Externalizable interface implementation to save and retrieve the state of this bean

Specified by:

readExternal in interface java.io.Externalizable

Throws:

java.io.IOException

java.lang.ClassNotFoundException

setData

public void setData(java.util.Vector data)

Sets the data for computation

Specified by:

setData in interface Computable

Parameters:

data - the vector contains the data

getData

public java.util.Vector getData()

Returns the data for computation

Specified by:

getData in interface Computable

Returns:

the vector contains the data

setColumnNames

public void setColumnNames(java.util.Vector columnNames)

Sets the column names

Specified by:

setColumnNames in interface Computable

Parameters:

columnNames - the vector contains the column names

getColumnNames

public java.util.Vector getColumnNames()

Returns the column names

Specified by:

getColumnNames in interface Computable

Returns:

the vector contains the column names

setCurrentIndex

public void setCurrentIndex(int index)

Sets the current index

Specified by:

setCurrentIndex in interface Computable

Parameters:

index - the index of the record ,being proccessed

getCurrentIndex

public int getCurrentIndex()

Returns the current index

Specified by:

getCurrentIndex in interface Computable

Returns:

the index of the record ,being proccessed

getCurrentRecord

public java.util.Vector getCurrentRecord()

Returns the current record

Specified by:

getCurrentRecord in interface Computable

Returns:

the vector containing the current record values

getColumnData

public java.util.Vector getColumnData(java.lang.String colName)

Returns the column values of the column colName

Specified by:

getColumnData in interface Computable

Parameters:

colName - the column name

Returns:

the vector of the column values

getColumnIndex

public int getColumnIndex(java.lang.String colName)

Returns the index for the specified column

Parameters:

colName - the name of the column

Returns:

the index for the specified column

getColumnData

public java.util.Vector getColumnData(int colIndex)

Returns the column values of the column at colIndex

Specified by:

getColumnData in interface Computable

Parameters:

colIndex - the column index

Returns:

the vector of the column values

setCurrentPage

public void setCurrentPage(int n)

Sets the current vertical page index

Specified by:

setCurrentPage in interface Computable

Parameters:

n - the current vertical page index

getCurrentPage

public int getCurrentPage()

Returns the current vertical page index

Specified by:

getCurrentPage in interface Computable

Returns:

the current vertical page index

setPageCount

public void setPageCount(int n)

Sets the vertical page count

Specified by:

setPageCount in interface Computable

Parameters:

n - the vertical page count

getPageCount

public int getPageCount()

Returns the vertical page count

Specified by:

getPageCount in interface Computable

Returns:

the vertical page count

setCurrentPageAcross

public void setCurrentPageAcross(int n)

Sets the current horizontal page index

Specified by:

setCurrentPageAcross in interface Computable

Parameters:

n - the current horizontal page index

getCurrentPageAcross

public int getCurrentPageAcross()

Returns the current horizontal page index

Specified by:

getCurrentPageAcross in interface Computable

Returns:

the current horizontal page index

setPageAcrossCount

public void setPageAcrossCount(int n)

Sets the horizontal page count

Specified by:

setPageAcrossCount in interface Computable

Parameters:

n - the horizontal page count

getPageAcrossCount

public int getPageAcrossCount()

Returns the horizontal page count

Specified by:

getPageAcrossCount in interface Computable

Returns:

the horizontal page count

getOperators

public java.lang.String[] getOperators()

Returns the valid operators to use in the expression

Specified by:

getOperators in interface Computable

Returns:

the array of the operators

getMethods

public java.lang.String[] getMethods()

Returns the valid methods to use in the expression

Specified by:

getMethods in interface Computable

Returns:

the array of the method names