com.github.robtimus.sql.function

Interface SQLSupplier<T>

Type Parameters:

T - The type of results supplied by this supplier.

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 SQLSupplier<T>

Represents a supplier of results. This is the SQLException throwing equivalent of Supplier.

Method Summary

Modifier and Type	Method and Description
static <T> SQLSupplier<T>	checked(Supplier<? extends T> supplier) Returns a supplier that returns the result of the supplier supplier, and unwraps any UncheckedSQLException that is thrown by throwing its cause.
T	get() Gets a result.
static <T> Supplier<T>	unchecked(SQLSupplier<? extends T> supplier) Returns a supplier that returns the result of the supplier supplier, and wraps any SQLException that is thrown in an UncheckedSQLException.

Method Detail

get

T get()
throws SQLException

Gets a result.

Returns:

A result.

Throws:

SQLException - If an SQL error occurs.

unchecked

static <T> Supplier<T> unchecked(SQLSupplier<? extends T> supplier)

Returns a supplier that returns the result of the supplier supplier, and wraps any SQLException that is thrown in an UncheckedSQLException.

Type Parameters:

T - The type of results supplied by the supplier.

Parameters:

supplier - The supplier that will provide results for the returned supplier.

Returns:

A supplier that returns the result of the supplier supplier, and wraps any SQLException that is thrown in an UncheckedSQLException.

Throws:

NullPointerException - If supplier is null.

checked

static <T> SQLSupplier<T> checked(Supplier<? extends T> supplier)

Returns a supplier that returns the result of the supplier supplier, and unwraps any UncheckedSQLException that is thrown by throwing its cause.

Type Parameters:

T - The type of results supplied by the supplier.

Parameters:

supplier - The supplier that will provide results for the returned supplier.

Returns:

A supplier that returns the result of the supplier supplier, and unwraps any UncheckedSQLException that is thrown.

Throws:

NullPointerException - If supplier is null.