com.github.robtimus.sql.function

Interface IntUnarySQLOperator

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 IntUnarySQLOperator

Represents an operation on a single int-valued operand that produces an int-valued result. This is the SQLException throwing equivalent of IntUnaryOperator.

Method Summary

Modifier and Type	Method and Description
default IntUnarySQLOperator	andThen(IntUnarySQLOperator after) Returns a composed operator that first applies this operator to its input, and then applies the after operator to the result.
int	applyAsInt(int operand) Applies this operator to the given operand.
static IntUnarySQLOperator	checked(IntUnaryOperator operator) Returns a unary operator that applies the operator operator to its input, and unwraps any UncheckedSQLException that is thrown by throwing its cause.
default IntUnarySQLOperator	compose(IntUnarySQLOperator before) Returns a composed operator that first applies the before operator to its input, and then applies this operator to the result.
static IntUnarySQLOperator	identity() Returns a unary operator that always returns its input argument.
static IntUnaryOperator	unchecked(IntUnarySQLOperator operator) Returns a unary operator that applies the operator operator to its input, and wraps any SQLException that is thrown in an UncheckedSQLException.

Method Detail

applyAsInt

int applyAsInt(int operand)
        throws SQLException

Applies this operator to the given operand.

Parameters:

operand - The operand.

Returns:

The operator result.

Throws:

SQLException - If an SQL error occurs.

compose

default IntUnarySQLOperator compose(IntUnarySQLOperator before)

Returns a composed operator that first applies the before operator to its input, and then applies this operator to the result. If evaluation of either operator throws an exception, it is relayed to the caller of the composed operator.

Parameters:

before - The operator to apply before this operator is applied.

Returns:

A composed operator that first applies the before operator and then applies this operator.

Throws:

NullPointerException - If before is null.

See Also:

andThen(IntUnarySQLOperator)

andThen

default IntUnarySQLOperator andThen(IntUnarySQLOperator after)

Returns a composed operator that first applies this operator to its input, and then applies the after operator to the result. If evaluation of either operator throws an exception, it is relayed to the caller of the composed operator.

Parameters:

after - The operator to apply after this operator is applied.

Returns:

A composed operator that first applies this operator and then applies the after operator.

Throws:

NullPointerException - If after is null.

See Also:

compose(IntUnarySQLOperator)

identity

static IntUnarySQLOperator identity()

Returns a unary operator that always returns its input argument.

Returns:

a unary operator that always returns its input argument

unchecked

static IntUnaryOperator unchecked(IntUnarySQLOperator operator)

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

Parameters:

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

Returns:

A unary 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 IntUnarySQLOperator checked(IntUnaryOperator operator)

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

Parameters:

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

Returns:

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

Throws:

NullPointerException - If operator is null.