ddth-cache-adapter-core/src/main/java/com/github/ddth/cacheadapter/AbstractCache.java
protected String getCacheProperty(String key) {
        return cacheProps != null ? cacheProps.getProperty(key) : null;
    }
protected String getCacheProperty(String key) {
        return cacheProps != null ? cacheProps.getProperty(key) : null;
    }
Get cache's custom property.

@param key
@return
@since 0.6.1