Ehcache: Remove the cache by alias name

CacheManager#removeCache method removes the Cache associated with the alias name provided. When the cache is removed, it will release all resources it used.

 

Signature

void removeCache(String alias);

 

Example

cacheManager.removeCache("empCache");

 

Above snippet remove the cache with alias name empCache.

 

Find the below working application.

 

RemoveCacheDemo.java

 

package com.sample.app;

import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import org.ehcache.Cache;
import org.ehcache.CacheManager;
import org.ehcache.config.builders.CacheConfigurationBuilder;
import org.ehcache.config.builders.CacheManagerBuilder;
import org.ehcache.config.builders.ResourcePoolsBuilder;

public class RemoveCacheDemo {

	public static void main(String[] args) {
		CacheManager cacheManager = CacheManagerBuilder.newCacheManagerBuilder().build(true);

		cacheManager.createCache("empCache", CacheConfigurationBuilder
				.newCacheConfigurationBuilder(Long.class, String.class, ResourcePoolsBuilder.heap(100)).build());

		Cache<Long, String> empCache = cacheManager.getCache("empCache", Long.class, String.class);

		empCache.put(1L, "Krishna");
		empCache.put(2L, "Ram");

		Set<Long> empids = new HashSet<>();
		empids.add(1L);
		empids.add(2L);
		empids.add(3L);

		System.out.println("Printing all the elements in cache");
		Map<Long, String> empsInfo = empCache.getAll(empids);

		for (Long key : empsInfo.keySet()) {
			System.out.println(key + " -> " + empsInfo.get(key));
		}

		System.out.println("\nRemove the cache with alias name 'empCache'");
		cacheManager.removeCache("empCache");

		if (cacheManager.getCache("empCache", Long.class, String.class) == null) {
			System.out.println("empCache is deleted");
		}
		cacheManager.close();

	}

}

 

Output

Printing all the elements in cache
1 -> Krishna
2 -> Ram
3 -> null

Remove the cache with alias name 'empCache'
empCache is deleted

 

 

   

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