Spec-Zone.ru › OpenJavaFX 11
Module javafx.base
Package javafx.beans.binding

Class When

  • 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 expression cond needs to be a ObservableBooleanValue. Based on the value of cond, the binding contains the value of value1 (if cond.getValue() == true) or value2 (if cond.getValue() == false). The values value1 and value2 have to be of the same type. They can be constant values or implementations of ObservableValue.

    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
    If-then-else 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 of When.

  • Method Summary

    All MethodsInstance MethodsConcrete 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 is true.
    When.NumberConditionBuilder then​(double thenValue)
    Defines a constant value of the ternary expression, that is returned if the condition is true.
    When.NumberConditionBuilder then​(float thenValue)
    Defines a constant value of the ternary expression, that is returned if the condition is true.
    When.NumberConditionBuilder then​(int thenValue)
    Defines a constant value of the ternary expression, that is returned if the condition is true.
    When.NumberConditionBuilder then​(long thenValue)
    Defines a constant value of the ternary expression, that is returned if the condition is true.
    When.StringConditionBuilder then​(String thenValue)
    Defines a constant value of the ternary expression, that is returned if the condition is true.
    When.BooleanConditionBuilder then​(ObservableBooleanValue thenValue)
    Defines the ObservableBooleanValue which value is returned by the ternary expression if the condition is true.
    When.NumberConditionBuilder then​(ObservableNumberValue thenValue)
    Defines the ObservableNumberValue which value is returned by the ternary expression if the condition is true.
    <T> When.ObjectConditionBuilder<T> then​(ObservableObjectValue<T> thenValue)
    Defines the ObservableObjectValue which value is returned by the ternary expression if the condition is true.
    When.StringConditionBuilder then​(ObservableStringValue thenValue)
    Defines the ObservableStringValue which value is returned by the ternary expression if the condition is true.
    <T> When.ObjectConditionBuilder<T> then​(T thenValue)
    Defines a constant value of the ternary expression, that is returned if the condition is true.

    • Methods inherited from class java.lang.Object

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

  • Constructor Detail

    • When

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

  • Method Detail

    • then

      public When.NumberConditionBuilder then​(ObservableNumberValue thenValue)
      Defines the ObservableNumberValue which value is returned by the ternary expression if the condition is true.
      Parameters:
      thenValue - the value
      Returns:
      the intermediate result which still requires the otherwise-branch

    • then

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

    • then

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

    • then

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

    • then

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

    • then

      public When.BooleanConditionBuilder then​(ObservableBooleanValue thenValue)
      Defines the ObservableBooleanValue which value is returned by the ternary expression if the condition is true.
      Parameters:
      thenValue - the value
      Returns:
      the intermediate result which still requires the otherwise-branch

    • then

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

    • then

      public When.StringConditionBuilder then​(ObservableStringValue thenValue)
      Defines the ObservableStringValue which value is returned by the ternary expression if the condition is true.
      Parameters:
      thenValue - the value
      Returns:
      the intermediate result which still requires the otherwise-branch

    • then

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

    • then

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

    • then

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

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Documentation extracted from JavaFX API Documentation.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Java, JavaFX and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.

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