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/**
 *  Copyright (c) 1997-2013, www.tinygroup.org ([email protected]).
 *
 *  Licensed under the GPL, Version 3.0 (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.gnu.org/licenses/gpl.html
 *
 *  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.tinygroup.flowbasiccomponent;

import org.tinygroup.context.Context;
import org.tinygroup.logger.LogLevel;
import org.tinygroup.tinydb.Bean;
import org.tinygroup.tinydb.exception.TinyDbException;
import org.tinygroup.tinydb.operator.DBOperator;

/**
 * 分页查询记录的流程组件
 * @author renhui
 *
 */
public class TinydbPageQueryService extends AbstractTinydbService {

	private int start;

	private int limit;

	public int getStart() {
		return start;
	}

	public void setStart(int start) {
		this.start = start;
	}

	public int getLimit() {
		return limit;
	}

	public void setLimit(int limit) {
		this.limit = limit;
	}

	public void tinyService(Bean bean, Context context, DBOperator operator) {
		if(bean!=null){
			try {
				Bean[] beans = operator.getBeans(bean,start,limit);
				context.put(resultKey, beans);
			} catch (TinyDbException e) {
				throw new RuntimeException(e);
			}
		}else{
			logger.logMessage(LogLevel.WARN, "查询服务时,从上下文中找不到bean对象，其beantype:[{}]",beanType);
		}
	}

}