org.jdbi.v3.sqlobject.WithHandleMethodHandlerFactory Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jdbi3-sqlobject Show documentation

SqlObject is a declarative, annotation-driven API for database access. It complements the core API. Jdbi 3 is designed to provide convenient tabular data access in Java(tm) and other JVM based languages. It uses the Java collections framework for query results, provides a convenient means of externalizing SQL statements, and named parameter support for any database that supports JDBC.

There is a newer version: 3.47.0

Show newest version

/*
 * 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;

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

import org.jdbi.v3.core.HandleCallback;
import org.jdbi.v3.core.extension.ExtensionContext;
import org.jdbi.v3.core.extension.ExtensionMethod;

class WithHandleMethodHandlerFactory implements HandlerFactory {
    private static final Method WITH_HANDLE = Handlers.methodLookup(SqlObject.class, "withHandle", HandleCallback.class);

    @SuppressWarnings("unchecked")
    @Override
    public Optional buildHandler(Class sqlObjectType, Method method) {
        if (!WITH_HANDLE.equals(method)) {
            return Optional.empty();
        }
        ExtensionMethod extensionMethod = new ExtensionMethod(sqlObjectType, method);
        return Optional.of((target, args, handleSupplier) -> {
            ExtensionContext extensionContext = new ExtensionContext(handleSupplier.getConfig(), extensionMethod);
            return handleSupplier.invokeInContext(extensionContext,
                () -> ((HandleCallback) args[0]).withHandle(handleSupplier.getHandle()));
        });
    }
}