spring-batch ExecutionContextUserSupport 源码
spring-batch ExecutionContextUserSupport 代码
文件路径：/spring-batch-infrastructure/src/main/java/org/springframework/batch/item/util/ExecutionContextUserSupport.java
/*
* 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
*
* 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.util;
import org.springframework.batch.item.ExecutionContext;
import org.springframework.util.Assert;
/**
* Facilitates assigning names to objects persisting data in {@link ExecutionContext} and
* generating keys for {@link ExecutionContext} based on the name.
*
* @author Robert Kasanicky
*/
public class ExecutionContextUserSupport {
private String name;
public ExecutionContextUserSupport() {
super();
}
public ExecutionContextUserSupport(String name) {
super();
this.name = name;
}
/**
* @return name used to uniquely identify this instance's entries in shared context.
*/
protected String getName() {
return this.name;
}
/**
* @param name unique name used to create execution context keys.
*/
public void setName(String name) {
this.name = name;
}
/**
* Prefix the argument with {@link #getName()} to create a unique key that can be
* safely used to identify data stored in {@link ExecutionContext}.
* @param suffix {@link String} to be used to generate the key.
* @return the key that was generated based on the name and the suffix.
*/
public String getKey(String suffix) {
Assert.hasText(name, "Name must be assigned for the sake of defining the execution context keys prefix.");
return name + "." + suffix;
}
}
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