com.github.robtimus.sql.function

Interface BinarySQLOperator<T>

Type Parameters:

T - The type of the operands and result of the operator.

All Superinterfaces:

SQLBiFunction<T,T,T>

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 interface BinarySQLOperator<T>
extends SQLBiFunction<T,T,T>

Represents an operation upon two operands of the same type, producing a result of the same type as the operands. This is the SQLException throwing equivalent of BinaryOperator.

Method Summary

Modifier and Type	Method and Description
static <T> BinarySQLOperator<T>	checked(BinaryOperator<T> operator) Returns a binary operator that applies the operator operator to its input, and unwraps any UncheckedSQLException that is thrown by throwing its cause.
static <T> BinarySQLOperator<T>	maxBy(Comparator<? super T> comparator) Returns an BinarySQLOperator which returns the greater of two elements according to the specified Comparator.
static <T> BinarySQLOperator<T>	minBy(Comparator<? super T> comparator) Returns an BinarySQLOperator which returns the lesser of two elements according to the specified Comparator.
static <T> BinaryOperator<T>	unchecked(BinarySQLOperator<T> operator) Returns a binary operator that applies the operator operator to its input, and wraps any SQLException that is thrown in an UncheckedSQLException.

Methods inherited from interface com.github.robtimus.sql.function.SQLBiFunction

andThen, apply, checked, unchecked

Method Detail

minBy

static <T> BinarySQLOperator<T> minBy(Comparator<? super T> comparator)

Returns an BinarySQLOperator which returns the lesser of two elements according to the specified Comparator.

Type Parameters:

T - The type of the input arguments of the comparator.

Parameters:

comparator - A Comparator for comparing the two values.

Returns:

An BinarySQLOperator which returns the lesser of its operands, according to the supplied Comparator.

Throws:

NullPointerException - If comparator is null.

maxBy

static <T> BinarySQLOperator<T> maxBy(Comparator<? super T> comparator)

Returns an BinarySQLOperator which returns the greater of two elements according to the specified Comparator.

Type Parameters:

T - The type of the input arguments of the comparator.

Parameters:

comparator - A Comparator for comparing the two values.

Returns:

A BinaryOperator which returns the greater of its operands, according to the supplied Comparator.

Throws:

NullPointerException - If comparator is null.

unchecked

static <T> BinaryOperator<T> unchecked(BinarySQLOperator<T> operator)

Returns a binary operator that applies the operator operator to its input, and wraps any SQLException that is thrown in an UncheckedSQLException.

Type Parameters:

T - The type of the operands and result of the operator.

Parameters:

operator - The binary operator to apply when the returned binary operator is applied.

Returns:

A binary operator that applies the operator operator to its input, and wraps any SQLException that is thrown in an UncheckedSQLException.

Throws:

NullPointerException - If operator is null.

checked

static <T> BinarySQLOperator<T> checked(BinaryOperator<T> operator)

Returns a binary operator that applies the operator operator to its input, and unwraps any UncheckedSQLException that is thrown by throwing its cause.

Type Parameters:

T - The type of the input and output of the operator.

Parameters:

operator - The binary operator to apply when the returned binary operator is applied.

Returns:

A binary operator that applies the operator operator to its input, and unwraps any UncheckedSQLException that is thrown.

Throws:

NullPointerException - If operator is null.