/**
*
* Copyright (c) 2006-2017, Speedment, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"); You may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.speedment.runtime.core.db;
import com.speedment.runtime.core.exception.SpeedmentException;
import java.sql.SQLException;
import java.util.Objects;
import static java.util.Objects.requireNonNull;
import java.util.function.Predicate;
/**
* A variation of the standard {@code java.util.function.Predicate} that throws
* a {@code SQLException} if an error occurred while the predicate was tested.
*
* @param <T> input type
*
* @author Per Minborg
*/
@FunctionalInterface
public interface SqlPredicate<T> {
boolean test(T t) throws SQLException;
static <T> SqlPredicate<T> wrap(Predicate<T> inner) {
return requireNonNull(inner)::test;
}
default Predicate<T> unWrap() {
return t -> {
try {
return this.test(t);
} catch (SQLException sqle) {
throw new SpeedmentException(sqle);
}
};
}
default SqlPredicate<T> and(SqlPredicate<? super T> other) {
Objects.requireNonNull(other);
return t -> test(t) && other.test(t);
}
default SqlPredicate<T> negate() {
return t -> !test(t);
}
default SqlPredicate<T> or(Predicate<? super T> other) {
Objects.requireNonNull(other);
return t -> test(t) || other.test(t);
}
}