Package com.sun.javafx.binding

Class StringConstant

java.lang.Object

javafx.beans.binding.StringExpression

com.sun.javafx.binding.StringConstant

All Implemented Interfaces:

Observable, ObservableObjectValue<String>, ObservableStringValue, ObservableValue<String>

public class StringConstant
extends StringExpression

Method Summary

Modifier and Type	Method	Description
void	addListener(InvalidationListener observer)	Adds an InvalidationListener which will be notified whenever the Observable becomes invalid.
void	addListener(ChangeListener<? super String> observer)	Adds a ChangeListener which will be notified whenever the value of the ObservableValue changes.
String	get()	Returns the current value of this ObservableObjectValue<T>.
String	getValue()	Returns the current value of this ObservableValue
void	removeListener(InvalidationListener observer)	Removes the given listener from the list of listeners, that are notified whenever the value of the Observable becomes invalid.
void	removeListener(ChangeListener<? super String> observer)	Removes the given listener from the list of listeners, that are notified whenever the value of the ObservableValue changes.
static StringConstant	valueOf(String value)

Methods inherited from class javafx.beans.binding.StringExpression

getValueSafe, isEmpty, isNotEmpty

Methods inherited from class java.lang.Object

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

Method Details

valueOf

public static StringConstant valueOf(String value)

get

public String get()

Description copied from interface: ObservableObjectValue

Returns the current value of this ObservableObjectValue<T>.

Returns:

The current value

getValue

public String getValue()

Description copied from interface: ObservableValue

Returns the current value of this ObservableValue

Specified by:

getValue in interface ObservableValue<String>

Overrides:

getValue in class StringExpression

Returns:

The current value

addListener

public void addListener(InvalidationListener observer)

Description copied from interface: Observable

Adds an InvalidationListener which will be notified whenever the Observable becomes invalid. If the same listener is added more than once, then it will be notified more than once. That is, no check is made to ensure uniqueness.

Note that the same actual InvalidationListener instance may be safely registered for different Observables.

The Observable stores a strong reference to the listener which will prevent the listener from being garbage collected and may result in a memory leak. It is recommended to either unregister a listener by calling removeListener after use or to use an instance of WeakInvalidationListener avoid this situation.

Parameters:

observer - The listener to register

See Also:

• Observable.removeListener(InvalidationListener)

addListener

public void addListener(ChangeListener<? super String> observer)

Description copied from interface: ObservableValue

Adds a ChangeListener which will be notified whenever the value of the ObservableValue changes. If the same listener is added more than once, then it will be notified more than once. That is, no check is made to ensure uniqueness.

Note that the same actual ChangeListener instance may be safely registered for different ObservableValues.

The ObservableValue stores a strong reference to the listener which will prevent the listener from being garbage collected and may result in a memory leak. It is recommended to either unregister a listener by calling removeListener after use or to use an instance of WeakChangeListener avoid this situation.

Parameters:

observer - The listener to register

See Also:

• ObservableValue.removeListener(ChangeListener)

removeListener

public void removeListener(InvalidationListener observer)

Description copied from interface: Observable

Removes the given listener from the list of listeners, that are notified whenever the value of the Observable becomes invalid.

If the given listener has not been previously registered (i.e. it was never added) then this method call is a no-op. If it had been previously added then it will be removed. If it had been added more than once, then only the first occurrence will be removed.

Parameters:

observer - The listener to remove

See Also:

• Observable.addListener(InvalidationListener)

removeListener

public void removeListener(ChangeListener<? super String> observer)

Description copied from interface: ObservableValue

Removes the given listener from the list of listeners, that are notified whenever the value of the ObservableValue changes.

If the given listener has not been previously registered (i.e. it was never added) then this method call is a no-op. If it had been previously added then it will be removed. If it had been added more than once, then only the first occurrence will be removed.

Parameters:

observer - The listener to remove

See Also:

• ObservableValue.addListener(ChangeListener)