DoubleUnarySQLOperator (sql-functions 1.0 API)

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 DoubleUnarySQLOperator
```
Represents an operation on a single double-valued operand that produces a double-valued result. This is the SQLException throwing equivalent of DoubleUnaryOperator.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`default DoubleUnarySQLOperator`	`andThen(DoubleUnarySQLOperator after)` Returns a composed operator that first applies this operator to its input, and then applies the `after` operator to the result.
`double`	`applyAsDouble(double operand)` Applies this operator to the given operand.
`static DoubleUnarySQLOperator`	`checked(DoubleUnaryOperator 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 DoubleUnarySQLOperator`	`compose(DoubleUnarySQLOperator before)` Returns a composed operator that first applies the `before` operator to its input, and then applies this operator to the result.
`static DoubleUnarySQLOperator`	`identity()` Returns a unary operator that always returns its input argument.
`static DoubleUnaryOperator`	`unchecked(DoubleUnarySQLOperator 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
  - applyAsDouble
```
double applyAsDouble(double 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 DoubleUnarySQLOperator compose(DoubleUnarySQLOperator 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(DoubleUnarySQLOperator)
  - andThen
```
default DoubleUnarySQLOperator andThen(DoubleUnarySQLOperator 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(DoubleUnarySQLOperator)
  - identity
```
static DoubleUnarySQLOperator identity()
```
    Returns a unary operator that always returns its input argument.
    
    Returns:
    
    A unary operator that always returns its input argument.
  - unchecked
```
static DoubleUnaryOperator unchecked(DoubleUnarySQLOperator 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 DoubleUnarySQLOperator checked(DoubleUnaryOperator 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.

Interface DoubleUnarySQLOperator

Method Summary

Method Detail

applyAsDouble

compose

andThen

identity

unchecked

checked