de.must.wuic

Interface DataComponent

All Superinterfaces:

Exemptible, ModifiedInformer

All Known Subinterfaces:

DataTextComponent

All Known Implementing Classes:

DataCheckBox, DataCleartextClassification, DataComboBox, DataCurrencyChoice, DataDateField, DataDecimalField, DataFileStreamField, DataFloatField, DataImageViewerForDB, DataImageViewerForFile, DataIntField, DataList, DataLongField, DataMultChoice, DataPasswordField, DataRadioButtons, DataSmallImageChooser, DataTextArea, DataTextField, DataVariableChoice, DataVariableChoiceNumKey, DataYearField, InfoLinkTextField, SegmentedDataDateField

public interface DataComponent
extends ModifiedInformer, Exemptible

A handle to different types of components in one array. This is important for the DataPropertyAdministration. These data components are swing components which are connected to a database.

See Also:

DataPropertyAdministration

Method Summary

Modifier and Type	Method and Description
void	addComponentModificationListener(ComponentModificationListener l) Adds a component modification listener to this component.
DataObject	getAssignedDataObject()
boolean	isContentValid() Indicates whether the component's value is valid.
boolean	isFilled() Indicates whether the component has a value.
boolean	isRequirementUnfulfilled() Indicates whether the component's value is mandatory but not filled.
boolean	isToSave() Indicates whether the component's value differs from its value at load time.
void	loadValue() Loads the component's database stored value.
void	removeComponentModificationListener(ComponentModificationListener l) Removes a component modification listener to this component.
boolean	requestFocusInWindow() Set focus on the receiving component if isRequestFocusEnabled returns true.
void	saveValue() Stores the component's value.
void	selectAll() Selects all input of the component, if it is supported - e.g. in JTextField.
void	setEditable(boolean editable) Sets the flag that determines whether or not this component is editable.
void	setRequired(boolean required) Determines whether input is required (mandatory).
void	setToolTipText(java.lang.String toolTipText) Sets the component's tool tip text.

Methods inherited from interface de.must.middle.ModifiedInformer

isModified

Methods inherited from interface de.must.middle.Exemptible

free

Method Detail

getAssignedDataObject

DataObject getAssignedDataObject()

Returns:

the assigned data object

setRequired

void setRequired(boolean required)

Determines whether input is required (mandatory).

Parameters:

required - if true, input is mandatory; otherwise, input is not mandatory

loadValue

void loadValue()

Loads the component's database stored value.

isFilled

boolean isFilled()

Indicates whether the component has a value.

Returns:

true if the component has a value

isToSave

boolean isToSave()

Indicates whether the component's value differs from its value at load time.

Returns:

true if the component's value differs from its value at load time

isContentValid

boolean isContentValid()

Indicates whether the component's value is valid.

Returns:

true if the component's value is valid

isRequirementUnfulfilled

boolean isRequirementUnfulfilled()

Indicates whether the component's value is mandatory but not filled.

Returns:

if mandatory input is unfulfilled

selectAll

void selectAll()

Selects all input of the component, if it is supported - e.g. in JTextField. Allows easy new input, because the previous value is reset when the first key stroke occurs.

requestFocusInWindow

boolean requestFocusInWindow()

Set focus on the receiving component if isRequestFocusEnabled returns true.

saveValue

void saveValue()

Stores the component's value.

setEditable

void setEditable(boolean editable)

Sets the flag that determines whether or not this component is editable. If the flag is set to true, this component becomes user editable. If the flag is set to false, the cannot change the text of this text component.

Parameters:

editable - a flag indicating whether this component should be user editable

setToolTipText

void setToolTipText(java.lang.String toolTipText)

Sets the component's tool tip text.

Parameters:

toolTipText - the component's tool tip text

addComponentModificationListener

void addComponentModificationListener(ComponentModificationListener l)

Adds a component modification listener to this component. Needed e.g. for data components depending from a sublist.

Parameters:

l - component modification listener to add

removeComponentModificationListener

void removeComponentModificationListener(ComponentModificationListener l)

Removes a component modification listener to this component. Needed e.g. for data components depending from a sublist.

Parameters:

l - component modification listener to add

See Also:

DataList