RamCache support custom expire time

[corgiboygsj]

No description provided.

[codecov]

Codecov Report

Merging #1494 (1c9c0e9) into master (461948e) will decrease coverage by 2.84%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master    #1494      +/-   ##
============================================
- Coverage     63.63%   60.78%   -2.85%     
+ Complexity     5863      527    -5336     
============================================
  Files           381      423      +42     
  Lines         32190    35051    +2861     
  Branches       4506     4967     +461     
============================================
+ Hits          20484    21307     +823     
- Misses         9608    11600    +1992     
- Partials       2098     2144      +46     

Impacted Files	Coverage Δ
...m/baidu/hugegraph/backend/cache/AbstractCache.java	71.15% <100.00%> (+0.28%)	⬆️
.../com/baidu/hugegraph/backend/cache/LevelCache.java	92.10% <100.00%> (ø)
...om/baidu/hugegraph/backend/cache/OffheapCache.java	57.83% <100.00%> (ø)
...va/com/baidu/hugegraph/backend/cache/RamCache.java	72.15% <100.00%> (+0.32%)	⬆️
...in/java/com/baidu/hugegraph/api/graph/EdgeAPI.java	53.36% <0.00%> (-0.85%)	⬇️
...u/hugegraph/backend/store/hbase/HbaseSessions.java	57.87% <0.00%> (-0.85%)	⬇️
.../baidu/hugegraph/backend/store/ram/IntLongMap.java	58.82% <0.00%> (-0.56%)	⬇️
...java/com/baidu/hugegraph/structure/HugeVertex.java	78.77% <0.00%> (-0.04%)	⬇️
...e/src/main/java/com/baidu/hugegraph/HugeGraph.java	65.30% <0.00%> (ø)
...n/java/com/baidu/hugegraph/version/ApiVersion.java	75.00% <0.00%> (ø)
... and 82 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 461948e...1c9c0e9. Read the comment docs.