Setting in cache.properties file

[G.Venkata Phanindra]

Hi,
  Can some one give me an explanation on the following two properties given
in cache.properties file
                 entitycache.entity.default.ServerHitType.expireTime=0

entitycache.entity.default.ServerHitType.useSoftReference=true

Regards

G.Venkata Phanindra
Mob:: 9849852989