Chandra Sekhar K created HBASE-29004:
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Summary: Optimize unnecessary type castings in Scan and Get setter
methods
Key: HBASE-29004
URL: https://issues.apache.org/jira/browse/HBASE-29004
Project: HBase
Issue Type: Improvement
Components: Performance
Reporter: Chandra Sekhar K
Assignee: Chandra Sekhar K
In the setter methods of Scan and Get, we invoke the super class method, type
cast and return the object.
{code:java}
public Scan setColumnFamilyTimeRange(byte[] cf, long minStamp, long maxStamp) {
return (Scan) super.setColumnFamilyTimeRange(cf, minStamp, maxStamp);
}{code}
In profiler reports it's observed that this typecasting does take some
additional cpu cycles. we can optimize this by adding an explicit return
statement with current object.
{code:java}
public Scan setColumnFamilyTimeRange(byte[] cf, long minStamp, long maxStamp) {
super.setColumnFamilyTimeRange(cf, minStamp, maxStamp);
return this;
}{code}
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