org.skife.jdbi.v2.sqlobject.CallHandler Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jdbi Show documentation

jDBI is designed to provide convenient tabular data access in Java(tm). It uses the Java collections framework for query results, provides a convenient means of externalizing sql statements, and provides named parameter support for any database being used.

There is a newer version: 2.78

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.skife.jdbi.v2.sqlobject;

import com.fasterxml.classmate.members.ResolvedMethod;
import net.sf.cglib.proxy.MethodProxy;
import org.skife.jdbi.v2.Call;
import org.skife.jdbi.v2.ConcreteStatementContext;
import org.skife.jdbi.v2.Handle;
import org.skife.jdbi.v2.OutParameters;

class CallHandler extends CustomizingStatementHandler
{
    private final String sql;
    private final boolean returnOutParams;

    CallHandler(Class sqlObjectType, ResolvedMethod method)
    {
        super(sqlObjectType, method);

        if (null != method.getReturnType() ) {
            if (method.getReturnType().isInstanceOf(OutParameters.class)){
                returnOutParams = true;
            }
            else {
                throw new IllegalArgumentException("@SqlCall methods may only return null or OutParameters at present");
            }
        }
        else {
            returnOutParams = false;
        }

        this.sql = SqlObject.getSql(method.getRawMember().getAnnotation(SqlCall.class), method.getRawMember());
    }

    @Override
    public Object invoke(HandleDing ding, Object target, Object[] args, MethodProxy mp)
    {
        Handle h = ding.getHandle();
        Call call = h.createCall(sql);
        populateSqlObjectData((ConcreteStatementContext)call.getContext());
        applyCustomizers(call, args);
        applyBinders(call, args);

        OutParameters ou = call.invoke();

        if (returnOutParams) {
            return ou;
        }
        else {
            return null;
        }
    }
}