org.apache.lucene.index
Class KeepOnlyLastCommitDeletionPolicy
java.lang.Object
org.apache.lucene.index.IndexDeletionPolicy
org.apache.lucene.index.KeepOnlyLastCommitDeletionPolicy
- All Implemented Interfaces:
- Cloneable
public final class KeepOnlyLastCommitDeletionPolicy
- extends IndexDeletionPolicy
This IndexDeletionPolicy
implementation that
keeps only the most recent commit and immediately removes
all prior commits after a new commit is done. This is
the default deletion policy.
KeepOnlyLastCommitDeletionPolicy
public KeepOnlyLastCommitDeletionPolicy()
- Sole constructor.
onInit
public void onInit(List<? extends IndexCommit> commits)
- Deletes all commits except the most recent one.
- Specified by:
onInit
in class IndexDeletionPolicy
- Parameters:
commits
- List of current
point-in-time commits
,
sorted by age (the 0th one is the oldest commit).
Note that for a new index this method is invoked with
an empty list.
onCommit
public void onCommit(List<? extends IndexCommit> commits)
- Deletes all commits except the most recent one.
- Specified by:
onCommit
in class IndexDeletionPolicy
- Parameters:
commits
- List of IndexCommit
,
sorted by age (the 0th one is the oldest commit).
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