spring-batch SpELMappingGemfireItemWriter 源码
spring-batch SpELMappingGemfireItemWriter 代码
文件路径：/spring-batch-infrastructure/src/main/java/org/springframework/batch/item/data/SpELMappingGemfireItemWriter.java
/*
* Copyright 2002-2013 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
*
* https://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.item.data;
import org.springframework.batch.item.SpELItemKeyMapper;
import org.springframework.util.Assert;
/**
* A convenient {@link GemfireItemWriter} implementation that uses a
* {@link SpELItemKeyMapper}
*
* @author David Turanski
* @since 2.2
*/
public class SpELMappingGemfireItemWriter<K, V> extends GemfireItemWriter<K, V> {
/**
* A constructor that accepts a SpEL expression used to derive the key
* @param keyExpression
*/
SpELMappingGemfireItemWriter(String keyExpression) {
super();
Assert.hasText(keyExpression, "a valid keyExpression is required.");
setItemKeyMapper(new SpELItemKeyMapper<>(keyExpression));
}
}
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