Enum MergeTrigger

java.lang.Object
java.lang.Enum<MergeTrigger>
org.apache.lucene.index.MergeTrigger
All Implemented Interfaces:
Serializable, Comparable<MergeTrigger>

public enum MergeTrigger extends Enum<MergeTrigger>
MergeTrigger is passed to MergePolicy.findMerges(MergeTrigger, SegmentInfos, MergePolicy.MergeContext) to indicate the event that triggered the merge.
  • Enum Constant Details

    • SEGMENT_FLUSH

      public static final MergeTrigger SEGMENT_FLUSH
      Merge was triggered by a segment flush.
    • FULL_FLUSH

      public static final MergeTrigger FULL_FLUSH
      Merge was triggered by a full flush. Full flushes can be caused by a commit, NRT reader reopen or a close call on the index writer.
    • EXPLICIT

      public static final MergeTrigger EXPLICIT
      Merge has been triggered explicitly by the user.
    • MERGE_FINISHED

      public static final MergeTrigger MERGE_FINISHED
      Merge was triggered by a successfully finished merge.
    • CLOSING

      public static final MergeTrigger CLOSING
      Merge was triggered by a closing IndexWriter.
    • COMMIT

      public static final MergeTrigger COMMIT
      Merge was triggered on commit.
    • GET_READER

      public static final MergeTrigger GET_READER
      Merge was triggered on opening NRT readers.
  • Method Details

    • values

      public static MergeTrigger[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.
      Returns:
      an array containing the constants of this enum type, in the order they are declared
    • valueOf

      public static MergeTrigger valueOf(String name)
      Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
      Parameters:
      name - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      IllegalArgumentException - if this enum type has no constant with the specified name
      NullPointerException - if the argument is null