/*
* 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 org.springframework.batch.sample.domain.trade.internal;
import java.math.BigDecimal;
import org.springframework.batch.item.ItemReader;
import org.springframework.batch.sample.domain.trade.Trade;
/**
* Generates configurable number of {@link Trade} items.
*
* @author Robert Kasanicky
*/
public class GeneratingTradeItemReader implements ItemReader<Trade> {
private int limit = 1;
private int counter = 0;
@Override
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;
}
}