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• unlaxer-common
• 1.0
• source code
• FactoryBoundCache.java

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org.unlaxer.util.copy.FactoryBoundCache Maven / Gradle / Ivy

package org.unlaxer.util.copy;

import java.util.HashMap;
import java.util.Map;
import java.util.function.Function;

public class FactoryBoundCache{
	
	Map valueByKey= new HashMap();
	
	Function factory;
	
	public FactoryBoundCache(Function factory) {
		super();
		this.factory = factory;
	}
	
	public synchronized V get(K key){
		return valueByKey.computeIfAbsent(key, factory::apply);
	}
}