Package org.apache.lucene.index
Class KeepOnlyLastCommitDeletionPolicy
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- org.apache.lucene.index.IndexDeletionPolicy
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- org.apache.lucene.index.KeepOnlyLastCommitDeletionPolicy
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public final class KeepOnlyLastCommitDeletionPolicy extends IndexDeletionPolicy
ThisIndexDeletionPolicyimplementation 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.
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Constructor Summary
Constructors Constructor Description KeepOnlyLastCommitDeletionPolicy()Sole constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidonCommit(List<? extends IndexCommit> commits)Deletes all commits except the most recent one.voidonInit(List<? extends IndexCommit> commits)Deletes all commits except the most recent one.
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Method Detail
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onInit
public void onInit(List<? extends IndexCommit> commits)
Deletes all commits except the most recent one.- Specified by:
onInitin classIndexDeletionPolicy- Parameters:
commits- List of currentpoint-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.
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onCommit
public void onCommit(List<? extends IndexCommit> commits)
Deletes all commits except the most recent one.- Specified by:
onCommitin classIndexDeletionPolicy- Parameters:
commits- List ofIndexCommit, sorted by age (the 0th one is the oldest commit).
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