Uploaded image for project: 'HBase'
  1. HBase
  2. HBASE-5357

Use builder pattern in HColumnDescriptor

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None

      Description

      We have five ways to create an HFile writer, two ways to create a StoreFile writer, and the sets of parameters keep changing, creating a lot of confusion, especially when porting patches across branches. The same thing is happening to HColumnDescriptor. I think we should move to a "builder pattern" solution, e.g.

        HFileWriter w = HFile.getWriterBuilder(conf, <some common args>)
            .setParameter1(value1)
            .setParameter2(value2)
            ...
            .build();
      

      Each parameter setter being on its own line will make merges/cherry-pick work properly, we will not have to even mention default parameters again, and we can eliminate a dozen impossible-to-remember constructors.

      This particular JIRA addresses the HColumnDescriptor refactoring. For StoreFile/HFile refactoring see HBASE-5442.

        Attachments

          Activity

            People

            • Assignee:
              mikhail Mikhail Bautin
              Reporter:
              mikhail Mikhail Bautin
            • Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: