Record Class ConstantValue<T>

java.lang.Object
java.lang.Record
dev.pfaff.altargui.util.listenable.ConstantValue<T>
All Implemented Interfaces:
Signal, Value<T>

public record ConstantValue<T>(T value) extends Record implements Value<T>
  • Constructor Details

    • ConstantValue

      public ConstantValue(T value)
      Creates an instance of a ConstantValue record class.
      Parameters:
      value - the value for the value record component
  • Method Details

    • read

      public T read()
      Description copied from interface: Value
      This may be expensive!
      Specified by:
      read in interface Value<T>
    • listen

      public ListenerDisposer listen(Runnable listener)
      Description copied from interface: Signal
      Adds a listener. The listener may not be added again if already added.
      Specified by:
      listen in interface Signal
      Specified by:
      listen in interface Value<T>
    • listen

      public ListenerDisposer listen(Consumer<T> listener)
      Description copied from interface: Value
      Adds a listener. The listener may not be added again if already added. When added, it is guaranteed to be invoked immediately with the current value.
      Specified by:
      listen in interface Value<T>
    • map

      public <R> Value<R> map(Function<T,R> mapper)
      Specified by:
      map in interface Value<T>
    • toString

      public final String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object
    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object
    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.
    • value

      public T value()
      Returns the value of the value record component.
      Returns:
      the value of the value record component