com.webobjects.eointerface
Class EOTableColumnAssociation

java.lang.Object
  com.webobjects.eocontrol.EODelayedObserver
      com.webobjects.eointerface.EOAssociation
          com.webobjects.eointerface.EOWidgetAssociation
              com.webobjects.eointerface.EOTableColumnAssociation

All Implemented Interfaces:

EOObserving, NSDisposable

public class EOTableColumnAssociation

extends EOWidgetAssociation

EOTableColumnAssociation associates display group(s) with a table column, via the repective WidgetPlugin's (subclasses of TableColumnPlugin). It always works together with a EOTableAssociation.

Aspects:

EOAssociation.ValueAspect

EOAssociation.BoldAspect

EOAssociation.ItalicAspect

EOAssociation.TextColorAspect

EOAssociation.EnabledAspect

Nested Class Summary

static class

EOTableColumnAssociation.TableColumnPlugin TableColumnPlugin communicates with a UI widget (Cocoa's NSTableColumn or JFC's TableColumn, for example) on behalf of an EOTableAssociation.

Nested classes inherited from class com.webobjects.eointerface.EOWidgetAssociation

EOWidgetAssociation.WidgetPlugin

Field Summary

Fields inherited from class com.webobjects.eointerface.EOAssociation

ActionAspect, ArgumentAspect, AttributeAspectSignature, AttributeToManyAspectSignature, AttributeToOneAspectSignature, AttributeToOneToManyAspectSignature, BackgroundColorAspect, BoldAspect, ChildrenAspect, DestinationAspect, EnabledAspect, ExpandedIconAspect, IconAspect, IgnoreValue, IsLeafAspect, ItalicAspect, MatchKey1Aspect, MatchKey2Aspect, MatchKey3Aspect, NullAspectSignature, ParentAspect, RootAspect, SelectedIndexAspect, SelectedObjectAspect, SelectedTitleAspect, SetValue, SourceAspect, TextColorAspect, TitlesAspect, ToManyAspectSignature, ToOneAspectSignature, ToOneToManyAspectSignature, UnsetValue, URLAspect, ValueAspect

Fields inherited from class com.webobjects.eocontrol.EODelayedObserver

ObserverNumberOfPriorities, ObserverPriorityFifth, ObserverPriorityFirst, ObserverPriorityFourth, ObserverPriorityImmediate, ObserverPriorityLater, ObserverPrioritySecond, ObserverPrioritySixth, ObserverPriorityThird

Constructor Summary

EOTableColumnAssociation(Object object)
Creates a new EOTableColumnAssociation to monitor and update the row values of a display group according to the widget object, which supplies a text (String) value.

EOTableColumnAssociation(Object object, Object table)
Creates a new EOTableColumnAssociation to monitor and update the row values of a display group according to the widget object, which supplies a text (String) value.

Method Summary

int	boldStateAtRow(int rowIndex) This method returns the boldState value for the specified row in this column.
boolean	endEditing() This method will end the editing state, for both the widget(-plugin) and the Association.
boolean	isEditableAtRow(int rowIndex) This method returns a flag indicating whether the specified row is editable in this column.
int	italicStateAtRow(int rowIndex) This method returns the italicState value for the specified row in this column.
String	primaryAspect() This method returns this associations primary aspect, which is EOAssociation.ValueAspect.
void	setObject(Object object) This method assigns a display object (table column widget) to this association.
void	setSortingSelector(NSSelector selector) This method will set the sorting selector.
void	setTable(Object table) This method stores the corresponding table widget for the table column managed by this association.
boolean	setValueAtRow(Object value, int rowIndex) This method sets the value Object for the specified row in this column.
NSSelector	sortingSelector() This method returns the sorting selector.
Object	table() This method returns the corresponding table widget for the table column managed by this association.
Object	textColorAtRow(int rowIndex) This method returns an Object indicating the color at the specified row in this column.
Object	valueAtRow(int rowIndex) This method returns the value Object for the specified row in this column.
boolean	widgetDidBeginEditing() This method is called to notify the Association that the widget entered the editing state.
boolean	widgetDidEndEditing() This method is called to notify the Association that the widget has finished the editing state.
protected Class	widgetPluginClass() This method returns the abstract base class for table column widget plugin's for this association class.

Methods inherited from class com.webobjects.eointerface.EOWidgetAssociation

canSupportValueFormatter, defaultPrefersContinuousChangeNotification, dispose, isUsableWithObject, objectKeysTaken, prefersContinuousChangeNotification, setDefaultPrefersContinuousChangeNotification, setPrefersContinuousChangeNotification, setValueFormatter, valueFormatter, widgetPlugin

Methods inherited from class com.webobjects.eointerface.EOAssociation

aspects, aspectSignatures, associationClassesForObject, bindAspect, breakConnection, copyMatchingBindingsFromAssociation, displayGroupForAspect, displayGroupKeyForAspect, establishConnection, isConnected, isEnabled, isEnabledAtIndex, isExplicitlyDisabled, object, priority, registerAssociationClass, setExplicitlyDisabled, setValueForAspect, setValueForAspectAtIndex, shouldEndEditing, shouldEndEditingAtIndex, subjectChanged, valueForAspect, valueForAspectAtIndex

Methods inherited from class com.webobjects.eocontrol.EODelayedObserver

discardPendingNotification, objectWillChange, observerQueue

Methods inherited from class java.lang.Object

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

Constructor Detail

EOTableColumnAssociation

public EOTableColumnAssociation(Object object)

Creates a new EOTableColumnAssociation to monitor and update the row values of a display group according to the widget object, which supplies a text (String) value. You normally set up associations with Interface Builder, in which case you don't need to create them programmatically. However, if you do create them up programmatically, setting them up is a multi-step process. After creating an association, you must bind its aspects and establish its connections.

Parameters:

object - a display object (table column widget) to be managed by this association

EOTableColumnAssociation

public EOTableColumnAssociation(Object object,
                                Object table)

Creates a new EOTableColumnAssociation to monitor and update the row values of a display group according to the widget object, which supplies a text (String) value. You normally set up associations with Interface Builder, in which case you don't need to create them programmatically. However, if you do create them up programmatically, setting them up is a multi-step process. After creating an association, you must bind its aspects and establish its connections.

Parameters:

object - a display object (table column widget) to be managed by this association

table - the corresponding table display object (widget)

Method Detail

boldStateAtRow

public int boldStateAtRow(int rowIndex)

This method returns the boldState value for the specified row in this column.

Parameters:

rowIndex - the index of the row of interest

Returns:

EOAssociation.SetValue if the value bound of the bold aspect at rowIndex is true, EOAssociation.UnsetValue if it is false, and EOAssociation.IgnoreValue if the bold aspect is not bound at all

endEditing

public boolean endEditing()

This method will end the editing state, for both the widget(-plugin) and the Association.

Overrides:

endEditing in class EOAssociation

Returns:

a flag indicating whether both the widget(-plugin) and the assocaiation were able to successfully complete the editing state

isEditableAtRow

public boolean isEditableAtRow(int rowIndex)

This method returns a flag indicating whether the specified row is editable in this column.

Parameters:

rowIndex - the index of the row of interest

Returns:

true if the row at rowIndex is editable in this column

italicStateAtRow

public int italicStateAtRow(int rowIndex)

This method returns the italicState value for the specified row in this column.

Parameters:

rowIndex - the index of the row of interest

Returns:

EOAssociation.SetValue if the value bound of the italic aspect at rowIndex is true, EOAssociation.UnsetValue if it is false, and EOAssociation.IgnoreValue if the italic aspect is not bound at all

primaryAspect

public String primaryAspect()

This method returns this associations primary aspect, which is EOAssociation.ValueAspect.

Overrides:

primaryAspect in class EOAssociation

Returns:

the name of the primary aspect of this association

setObject

public void setObject(Object object)

This method assigns a display object (table column widget) to this association.

Overrides:

setObject in class EOWidgetAssociation

Parameters:

object - a display object (table column widget) to be managed by this association

See Also:

EOAssociation.setObject(java.lang.Object)

setSortingSelector

public void setSortingSelector(NSSelector selector)

This method will set the sorting selector. The default is EOSortOrdering.CompareAscending. This selector will be used with EOSortOrdering for sorting. See the documentation for EOSortOrdering.

Parameters:

selector - the selector to be used for sorting

See Also:

EOSortOrdering

setTable

public void setTable(Object table)

This method stores the corresponding table widget for the table column managed by this association.

Parameters:

table - the corresponding table display object (widget)

setValueAtRow

public boolean setValueAtRow(Object value,
                             int rowIndex)

This method sets the value Object for the specified row in this column.

Parameters:

value - a value Object, whose actual class usually depends on how the application defined the values of this column

rowIndex - the index of the row of interest

sortingSelector

public NSSelector sortingSelector()

This method returns the sorting selector. It's default is EOSortOrdering.CompareAscending. This selector is used with EOSortOrdering for sorting. See the documentation for EOSortOrdering.

See Also:

EOSortOrdering

table

public Object table()

This method returns the corresponding table widget for the table column managed by this association. If it hasn't been set, it will try to obtain it from the column widget, otherwise it returns null.

Returns:

the corresponding table display object (widget)

textColorAtRow

public Object textColorAtRow(int rowIndex)

This method returns an Object indicating the color at the specified row in this column.

Parameters:

rowIndex - the index of the row of interest

Returns:

a Color object, whose actual class depends on the widget set being used (for example, Cocoa or Java AWT)

valueAtRow

public Object valueAtRow(int rowIndex)

This method returns the value Object for the specified row in this column.

Parameters:

rowIndex - the index of the row of interest

Returns:

an Object, whose actual class usually depends on how the application defined the values of this column

widgetDidBeginEditing

public boolean widgetDidBeginEditing()

This method is called to notify the Association that the widget entered the editing state.

Returns:

a flag indicating whether this association 'agreed' to start editing

widgetDidEndEditing

public boolean widgetDidEndEditing()

This method is called to notify the Association that the widget has finished the editing state.

Returns:

a flag indicating that the assocaiation was able to successfully complete the editing state

widgetPluginClass

protected Class widgetPluginClass()

This method returns the abstract base class for table column widget plugin's for this association class.

Overrides:

widgetPluginClass in class EOWidgetAssociation

Returns:

the base class for widget plugin's managed by this Association (EOTableColumnAssociation.TableColumnPlugin)