We are writing a test framework and we want to maintain a data structure for storing objects at suite level, objects vary from int to slf4j Logger. I am not clear as which data structure to use, which is more effective.
JCS or java.util.Map, which is efficient in terms of time?
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A
HashMap
is simpler and faster, is not thread safe. (that is why it is fastest)Other Caching systems are more sophisticated which means there will be a small overhead. Also will be thread safe.
JCS
supportLRU and MRU
, TheLRU Memory Cache
is anextremely fast
,highly configurable memory cache
. It uses a Least Recently Used algorithm to manage the number of items that can be stored in memory. TheLRU Memory Cache
uses its ownLRU Map
implementation that is significantly faster than both the commonsLRUMap implementation
and theLinkedHashMap
that is provided withJDK1.4
up.a good read here