 java.lang.Object

 javafx.beans.binding.When

public class When extends Object
Starting point for a binding that calculates a ternary expression.A ternary expression has the basic form
new When(cond).then(value1).otherwise(value2);
. The expressioncond
needs to be aObservableBooleanValue
. Based on the value ofcond
, the binding contains the value ofvalue1
(ifcond.getValue() == true
) orvalue2
(ifcond.getValue() == false
). The valuesvalue1
andvalue2
have to be of the same type. They can be constant values or implementations ofObservableValue
. Since:
 JavaFX 2.0


Nested Class Summary
Nested Classes Modifier and Type Class Description class
When.BooleanConditionBuilder
An intermediate class needed while assembling the ternary expression.class
When.NumberConditionBuilder
Ifthenelse expression returning a number.class
When.ObjectConditionBuilder<T>
An intermediate class needed while assembling the ternary expression.class
When.StringConditionBuilder
An intermediate class needed while assembling the ternary expression.

Constructor Summary
Constructors Constructor Description When(ObservableBooleanValue condition)
The constructor ofWhen
.

Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description When.BooleanConditionBuilder
then(boolean thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
.When.NumberConditionBuilder
then(double thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
.When.NumberConditionBuilder
then(float thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
.When.NumberConditionBuilder
then(int thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
.When.NumberConditionBuilder
then(long thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
.When.StringConditionBuilder
then(String thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
.When.BooleanConditionBuilder
then(ObservableBooleanValue thenValue)
Defines theObservableBooleanValue
which value is returned by the ternary expression if the condition istrue
.When.NumberConditionBuilder
then(ObservableNumberValue thenValue)
Defines theObservableNumberValue
which value is returned by the ternary expression if the condition istrue
.<T> When.ObjectConditionBuilder<T>
then(ObservableObjectValue<T> thenValue)
Defines theObservableObjectValue
which value is returned by the ternary expression if the condition istrue
.When.StringConditionBuilder
then(ObservableStringValue thenValue)
Defines theObservableStringValue
which value is returned by the ternary expression if the condition istrue
.<T> When.ObjectConditionBuilder<T>
then(T thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
.



Constructor Detail

When
public When(ObservableBooleanValue condition)
The constructor ofWhen
. Parameters:
condition
 the condition of the ternary expression


Method Detail

then
public When.NumberConditionBuilder then(ObservableNumberValue thenValue)
Defines theObservableNumberValue
which value is returned by the ternary expression if the condition istrue
. Parameters:
thenValue
 the value Returns:
 the intermediate result which still requires the otherwisebranch

then
public When.NumberConditionBuilder then(double thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
. Parameters:
thenValue
 the value Returns:
 the intermediate result which still requires the otherwisebranch

then
public When.NumberConditionBuilder then(float thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
. Parameters:
thenValue
 the value Returns:
 the intermediate result which still requires the otherwisebranch

then
public When.NumberConditionBuilder then(long thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
. Parameters:
thenValue
 the value Returns:
 the intermediate result which still requires the otherwisebranch

then
public When.NumberConditionBuilder then(int thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
. Parameters:
thenValue
 the value Returns:
 the intermediate result which still requires the otherwisebranch

then
public When.BooleanConditionBuilder then(ObservableBooleanValue thenValue)
Defines theObservableBooleanValue
which value is returned by the ternary expression if the condition istrue
. Parameters:
thenValue
 the value Returns:
 the intermediate result which still requires the otherwisebranch

then
public When.BooleanConditionBuilder then(boolean thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
. Parameters:
thenValue
 the value Returns:
 the intermediate result which still requires the otherwisebranch

then
public When.StringConditionBuilder then(ObservableStringValue thenValue)
Defines theObservableStringValue
which value is returned by the ternary expression if the condition istrue
. Parameters:
thenValue
 the value Returns:
 the intermediate result which still requires the otherwisebranch

then
public When.StringConditionBuilder then(String thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
. Parameters:
thenValue
 the value Returns:
 the intermediate result which still requires the otherwisebranch

then
public <T> When.ObjectConditionBuilder<T> then(ObservableObjectValue<T> thenValue)
Defines theObservableObjectValue
which value is returned by the ternary expression if the condition istrue
. Type Parameters:
T
 the type of the intermediate result Parameters:
thenValue
 the value Returns:
 the intermediate result which still requires the otherwisebranch

then
public <T> When.ObjectConditionBuilder<T> then(T thenValue)
Defines a constant value of the ternary expression, that is returned if the condition istrue
. Type Parameters:
T
 the type of the intermediate result Parameters:
thenValue
 the value Returns:
 the intermediate result which still requires the otherwisebranch

