core/src/in/srain/cube/cache/CacheManager.java
public void invalidateCache(String key) {
        if (DEBUG) {
            CLog.d(LOG_TAG, "key: %s, invalidateCache", key);
        }
        try {
            mFileCache.getDiskCache().delete(key);
        } catch (IOException e) {
            if (DEBUG) {
                e.printStackTrace();
            }
        }
        mMemoryCache.remove(key);
    }
public void invalidateCache(String key) {
        if (DEBUG) {
            CLog.d(LOG_TAG, "key: %s, invalidateCache", key);
        }
        try {
            mFileCache.getDiskCache().delete(key);
        } catch (IOException e) {
            if (DEBUG) {
                e.printStackTrace();
            }
        }
        mMemoryCache.remove(key);
    }
delete cache by key

@param key