lcn.module.batch.web.guide.service.GeneratingTradeItemReader.java Source code

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Here is the source code for lcn.module.batch.web.guide.service.GeneratingTradeItemReader.java

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/*
 * Copyright 2006-2007 the original author or authors. *
 * 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 lcn.module.batch.web.guide.service;

import java.math.BigDecimal;

import lcn.module.batch.web.guide.model.Trade;

import org.springframework.batch.item.ItemReader;

/**
 * ?? read  ? , items  ? ? ? ?
 * 
 * @author 
 * @since 2012. 07.30
 * @version 1.0
 * @see
 * 
 *  * <pre>
 * << ?(Modification Information) >>
 *   
 *   ?               ?               
 *  -------      --------     ---------------------------
 *  2012. 07.30       ?
 *
 * </pre>
 */
public class GeneratingTradeItemReader implements ItemReader<Trade> {

    private int limit = 1;

    private int counter = 0;

    public Trade read() throws Exception {
        if (counter < limit) {
            counter++;
            return new Trade("isin" + counter, counter, new BigDecimal(counter), "customer" + counter);
        }
        return null;
    }

    /**
     * @param limit number of items that will be generated
     * (null returned on consecutive calls).
     */
    public void setLimit(int limit) {
        this.limit = limit;
    }

    public int getCounter() {
        return counter;
    }

    public int getLimit() {
        return limit;
    }

    public void resetCounter() {
        this.counter = 0;
    }
}