EmptyCache.java

package com.alvazan.orm.layer5.nosql.cache;

import com.alvazan.orm.api.z8spi.Cache;
import com.alvazan.orm.api.z8spi.Row;
import com.alvazan.orm.api.z8spi.RowHolder;
import com.alvazan.orm.api.z8spi.meta.DboTableMeta;

public class EmptyCache implements Cache {

	private Cache realCache;
	private boolean skipCache;
	private boolean cacheResults;
	
	public EmptyCache(Cache c, boolean skipCache, boolean cacheResults) {
		if(c == null)
			throw new IllegalArgumentException("c can't be null");
		realCache = c;
		this.skipCache = skipCache;
		this.cacheResults = cacheResults;
	}
	
	@Override
	public RowHolder<Row> fromCache(DboTableMeta colFamily, byte[] key) {
		if(skipCache)
			return null;
		return realCache.fromCache(colFamily, key);
	}

	//For queries we want to cache every row still....we just get all values from database
	@Override
	public void cacheRow(DboTableMeta colFamily, byte[] b, Row value) {
		if(cacheResults)
			realCache.cacheRow(colFamily, b, value);
	}
}