Bug 180189 Support in memory data set cache.
Currently, Design-Time Data Cache is stored on disks. By performance tests using ramdisk, we found that caching in physical memory can improve the performance of RunAndRender by 30%.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/DataEngineSession.java
}
	
	/**
	 * 
	 * @return
	 */
	public Scriptable getSharedScope( )
	{
		return this.scope;
	}
	
	/**
	 * 
	 * @return
	 */
	public DataSetCacheManager getDataSetCacheManager( )
	{
		return this.dataSetCacheManager;
	}
	
	/**
	 * 
	 * @return
	 */
	public CacheUtil getCacheUtil( )
	{
		return this.cacheUtil;
	}
}