SqlAnnotations.java example

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/*
 * 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 org.jdbi.v3.sqlobject.internal;

import java.lang.reflect.Method;
import java.util.Optional;
import java.util.function.Predicate;

import org.jdbi.v3.core.internal.JdbiOptionals;
import org.jdbi.v3.sqlobject.statement.SqlBatch;
import org.jdbi.v3.sqlobject.statement.SqlCall;
import org.jdbi.v3.sqlobject.statement.SqlQuery;
import org.jdbi.v3.sqlobject.statement.SqlUpdate;

public class SqlAnnotations {
    /**
     * Returns the <code>value()</code> of the <code>@SqlBatch</code>, <code>@SqlCall</code>, <code>@SqlQuery</code>, or
     * <code>@SqlUpdate</code> annotation on the given method if declared and non-empty; empty otherwise.
     *
     * @param method the method
     * @return the annotation <code>value()</code>
     */
    public static Optional<String> getAnnotationValue(Method method) {
        Predicate<String> nonEmpty = s -> !s.isEmpty();

        return JdbiOptionals.findFirstPresent(
                () -> Optional.ofNullable(method.getAnnotation(SqlBatch.class)).map(SqlBatch::value).filter(nonEmpty),
                () -> Optional.ofNullable(method.getAnnotation(SqlCall.class)).map(SqlCall::value).filter(nonEmpty),
                () -> Optional.ofNullable(method.getAnnotation(SqlQuery.class)).map(SqlQuery::value).filter(nonEmpty),
                () -> Optional.ofNullable(method.getAnnotation(SqlUpdate.class)).map(SqlUpdate::value).filter(nonEmpty));
    }
}