Package acdp

Interface Table.ValueChanger<T>

Type Parameters:
T - The type of the value.
Enclosing interface:
Table
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public static interface Table.ValueChanger<T>
Provides a new value that depends on the stored value.

The changeValue(T) method of a value changer is invoked by the Table.updateAllChangeValues(acdp.Column<T>, acdp.Table.ValueChanger<T>) method for each row of the table.

If you do not need to know the stored values then implement the Table.ValueSupplier interface rather than this interface.

Author:
Beat Hörmann

  • Method Summary

    Modifier and Type
    Method
    Description
    T
    changeValue(T storedValue)
    Returns the new value for a particular column and for the next row of the table.

  • Method Details

    • changeValue

      T changeValue(T storedValue)
      Returns the new value for a particular column and for the next row of the table.

      Depending on the concrete implementation, this method may throw an exception not mentioned here.

      Parameters:
      storedValue - The stored value.
      Returns:
      The new value.