Cache Adapter In ATG - Working Example of Cache Adapter With Code

Cache adapter in ATG works in a similar way like EHCache does. We just have to call get(id) method of cache component. Here the passing parameter in get method will work as a key. For implementing cache adapter in ATG we need following components.

XXXCache

$class=atg.service.cache.Cache
cacheAdapter=/com/xxx/cache/XXXCacheAdapter

XXXCacheAdapter

$class=com.xxx.cache.XXXCacheAdapter

XXXCacheAdapter.java (Just provide implementation of getCacheElement. Override others will blank implementation)

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package com.xxx.cache;

import atg.nucleus.GenericService;
import atg.service.cache.CacheAdapter;

public class XXXCacheAdapter extends GenericService implements CacheAdapter {
	/*
	 * (non-Javadoc)
	 * 
	 * @see atg.service.cache.CacheAdapter#getCacheElement(java.lang.Object)
	 */
	@Override
	public Object getCacheElement(Object uniqueId) throws Exception {
		if (isLoggingDebug()) {
			logDebug("getCacheElement method Start ");
		}
		.
		.
		//Business Logic
		.
		.
		if (isLoggingDebug()) {
			logDebug("getCacheElement method End ");
		}
		return data;

	}

}

XXXFormHandler (Component from where we need to call cache component)

$class=com.xxx.handler.XXXFornhandler
$scope=request
xxxCache=/com/xxx/cache/XXXCache

XXXFormHandler.java

package com.xxx.handler.XXXFornhandler;

import atg.service.cache.Cache;
import atg.servlet.DynamoHttpServletRequest;
import atg.servlet.DynamoHttpServletResponse;


public class XXXFornhandler extends GenericFormHandler {

	private Cache xxxCache;

	public boolean handleSubmit(DynamoHttpServletRequest pRequest, DynamoHttpServletResponse pResponse) {
		.
		.
		data = getXXXCache().get(id);
		.	
		.
	}

	public Cache getXXXCache() {
		return xxxCache;
	}

	public void setXXXCache(Cache xxxCache) {
		this.xxxCache = xxxCache;
	}
}

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