com.github.robtimus.sql.function

Interface SQLBiPredicate<T,U>

Type Parameters:

T - The type of the first argument to the predicate.

U - The type of the second argument the predicate.

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 SQLBiPredicate<T,U>

Represents a predicate (boolean-valued function) of two arguments. This is the SQLException throwing equivalent of BiPredicate.

Method Summary

Modifier and Type	Method and Description
default SQLBiPredicate<T,U>	and(SQLBiPredicate<? super T,? super U> other) Returns a composed predicate that represents a short-circuiting logical AND of this predicate and another.
static <T,U> SQLBiPredicate<T,U>	checked(BiPredicate<? super T,? super U> predicate) Returns a predicate that evaluates the predicate predicate, and unwraps any UncheckedSQLException that is thrown by throwing its cause.
default SQLBiPredicate<T,U>	negate() Returns a predicate that represents the logical negation of this predicate.
default SQLBiPredicate<T,U>	or(SQLBiPredicate<? super T,? super U> other) Returns a composed predicate that represents a short-circuiting logical OR of this predicate and another.
boolean	test(T t, U u) Evaluates this predicate on the given arguments.
static <T,U> BiPredicate<T,U>	unchecked(SQLBiPredicate<? super T,? super U> predicate) Returns a predicate that evaluates the predicate predicate, and wraps any SQLException that is thrown in an UncheckedSQLException.

Method Detail

test

boolean test(T t,
             U u)
      throws SQLException

Evaluates this predicate on the given arguments.

Parameters:

t - The first input argument.

u - The second input argument.

Returns:

true if the input arguments match the predicate, otherwise false

Throws:

SQLException - If an SQL error occurs.

and

default SQLBiPredicate<T,U> and(SQLBiPredicate<? super T,? super U> other)

Returns a composed predicate that represents a short-circuiting logical AND of this predicate and another. When evaluating the composed predicate, if this predicate is false, then the other predicate is not evaluated.

Any exceptions thrown during evaluation of either predicate are relayed to the caller; if evaluation of this predicate throws an exception, the other predicate will not be evaluated.

Parameters:

other - A predicate that will be logically-ANDed with this predicate.

Returns:

A composed predicate that represents the short-circuiting logical AND of this predicate and the other predicate.

Throws:

NullPointerException - If other is null.

negate

default SQLBiPredicate<T,U> negate()

Returns a predicate that represents the logical negation of this predicate.

Returns:

A predicate that represents the logical negation of this predicate

or

default SQLBiPredicate<T,U> or(SQLBiPredicate<? super T,? super U> other)

Returns a composed predicate that represents a short-circuiting logical OR of this predicate and another. When evaluating the composed predicate, if this predicate is true, then the other predicate is not evaluated.

Any exceptions thrown during evaluation of either predicate are relayed to the caller; if evaluation of this predicate throws an exception, the other predicate will not be evaluated.

Parameters:

other - A predicate that will be logically-ORed with this predicate

Returns:

A composed predicate that represents the short-circuiting logical OR of this predicate and the other predicate.

Throws:

NullPointerException - If other is null.

unchecked

static <T,U> BiPredicate<T,U> unchecked(SQLBiPredicate<? super T,? super U> predicate)

Returns a predicate that evaluates the predicate predicate, and wraps any SQLException that is thrown in an UncheckedSQLException.

Type Parameters:

T - The type of the first argument to the predicate.

U - The type of the second argument the predicate.

Parameters:

predicate - The predicate to evaluate when the returned predicate is evaluated.

Returns:

A predicate that evaluates the predicate predicate on its input, and wraps any SQLException that is thrown in an UncheckedSQLException.

Throws:

NullPointerException - If predicate is null.

checked

static <T,U> SQLBiPredicate<T,U> checked(BiPredicate<? super T,? super U> predicate)

Returns a predicate that evaluates the predicate predicate, and unwraps any UncheckedSQLException that is thrown by throwing its cause.

Type Parameters:

T - The type of the first argument to the predicate.

U - The type of the second argument the predicate.

Parameters:

predicate - The predicate to evaluate when the returned predicate is evaluated.

Returns:

A predicate that evaluates the predicate operation on its input, and unwraps any UncheckedSQLException that is thrown.

Throws:

NullPointerException - If the given operation is null.