[jira] [Created] (ACCUMULO-4037) avoid a key copy in TimeSettingIterator

["Adam Fuchs (JIRA)" <ji...@apache.org>]

Adam Fuchs created ACCUMULO-4037:
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             Summary: avoid a key copy in TimeSettingIterator
                 Key: ACCUMULO-4037
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-4037
             Project: Accumulo
          Issue Type: Improvement
          Components: core
    Affects Versions: 1.7.0
            Reporter: Adam Fuchs
            Priority: Minor


In org.apache.accumulo.core.iterators.system.TimeSettingIterator we make a copy of the key before setting the time. Seems like this is a completely superfluous copy, and we should avoid it. In the current code we do the following:

{code}
  @Override
  public Key getTopKey() {
    Key key = new Key(source.getTopKey());
    key.setTimestamp(time);
    return key;
  }
{code}

Instead we should do this:
{code}
  @Override
  public Key getTopKey() {
    Key key = source.getTopKey();
    key.setTimestamp(time);
    return key;
  }
{code}




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