memoization-core/src/main/java/de/xn__ho_hia/memoization/shared/MemoizationDefaults.java
public static LongBinaryFunction<String> longBinaryOperatorHashCodeKeyFunction() {
        return (first, second) -> {
            final int firstHashCode = Long.valueOf(first).hashCode();
            final int secondHashCode = Long.valueOf(second).hashCode();
            return firstHashCode + " " + secondHashCode; //$NON-NLS-1$
        };
    }
/**
     * @return The default key function for {@link java.util.function.LongBinaryOperator}.
     */
@return The default key function for  java.util.function.LongBinaryOperator.
@return The default key function for java . util . function . LongBinaryOperator .
public static LongBinaryFunction<String> longBinaryOperatorHashCodeKeyFunction() {
        return (first, second) -> {
            final int firstHashCode = Long.valueOf(first).hashCode();
            final int secondHashCode = Long.valueOf(second).hashCode();
            return firstHashCode + " " + secondHashCode; 
        };
    }
public static LongBinaryFunction < String > longBinaryOperatorHashCodeKeyFunction ( ) { return ( first , second ) -> { final int firstHashCode = Long . valueOf ( first ) . hashCode ( ) ; final int secondHashCode = Long . valueOf ( second ) . hashCode ( ) ; return firstHashCode + " " + secondHashCode ; } ; }
@return The default key function for {@link java.util.function.LongBinaryOperator}.
@return The default key function for { @link java . util . function . LongBinaryOperator } .
//$NON-NLS-1$