src/share/classes/java/util/function/BinaryOperator.java

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rev 6273 : 8004561: Additional functional interfaces, extension methods and name changes
Summary: Adds additional functional interfaces for primitives and "Bi" (two operand). Adds utility extension methods. Includes some name changes for existing functional interfaces per EG decisions.
Reviewed-by: briangoetz


  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package java.util.function;
  26 
  27 /**
  28  * An operation upon two operands yielding a result. The operands and the result
  29  * are all of the same type.
  30  *
  31  * @param <T> the type of operands to {@code operate} and of the result
  32  *
  33  * @since 1.8
  34  */
  35 public interface BinaryOperator<T> {
  36 
  37     /**
  38      * Returns the result of the operation upon the operands.
  39      * The operands are named {@code left} and {@code right} for operations
  40      * where the order of operands matters.
  41      *
  42      * @param left the left operand
  43      * @param right the right operand
  44      * @return the result of the operation
  45      */
  46     public T operate(T left, T right);
  47 }



  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package java.util.function;
  26 
  27 /**
  28  * An operation upon two operands yielding a result. The operands and the result
  29  * are all of the same type.
  30  *
  31  * @param <T> the type of operands to {@code operate} and of the result
  32  *
  33  * @since 1.8
  34  */
  35 public interface BinaryOperator<T> extends BiFunction<T,T,T> {











  36 }