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/*
 * Copyright 2014 Miguel Gonzalez
 *
 * 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 de.bitbrain.jpersis.core.methods;

import de.bitbrain.jpersis.drivers.Query;

import java.lang.annotation.Annotation;
import java.util.Collection;

/**
 * Basic implementation of {@link MapperMethod}
 *
 * @author Miguel Gonzalez Miguel Gonzalez Sanchez
 * @since 1.0
 * @version 1.0
 */
public abstract class BasicMapperMethod extends AbstractMapperMethod {

  public BasicMapperMethod(T annotation) {
    super(annotation);
  }

  @Override
  public void on(Class model, Object[] args, Query query) {
    Object arg = args[0];
    if (arg.getClass().equals(model)) {
      action(arg, query);
    } else {
      Collection collection = (Collection) arg;
      for (Object o : collection) {
        action(o, query);
      }
    }
  }

  @Override
  protected boolean validateArgs(Object[] args, Class model) {
    return args.length == 1 && (args[0].getClass().equals(Collection.class) || args[0].getClass().equals(model));
  }

  @Override
  protected Class[] supportedReturnTypes(Class model) {
    return new Class[] { Boolean.class, boolean.class, void.class, Void.class };
  }

  protected abstract void action(Object object, Query query);
}