Package org.apache.lucene.index

Interface IndexWriterEventListener

public interface IndexWriterEventListener

A callback event listener for recording key events happened inside IndexWriter

WARNING: This API is experimental and might change in incompatible ways in the next release.

Field Summary

Fields

Modifier and Type	Field	Description
static final IndexWriterEventListener	NO_OP_LISTENER	A no-op listener that helps to save null checks

Method Summary

Modifier and Type	Method	Description
void	beginMergeOnFullFlush(MergePolicy.MergeSpecification merge)	Invoked at the start of merge on commit
void	endMergeOnFullFlush(MergePolicy.MergeSpecification merge)	Invoked at the end of merge on commit, due to either merge completed, or merge timed out according to IndexWriterConfig.setMaxFullFlushMergeWaitMillis(long)

Field Details

NO_OP_LISTENER

static final IndexWriterEventListener NO_OP_LISTENER

A no-op listener that helps to save null checks

Method Details

beginMergeOnFullFlush

void beginMergeOnFullFlush(MergePolicy.MergeSpecification merge)

Invoked at the start of merge on commit

Parameters:

merge - specification to be tracked

endMergeOnFullFlush

void endMergeOnFullFlush(MergePolicy.MergeSpecification merge)

Invoked at the end of merge on commit, due to either merge completed, or merge timed out according to IndexWriterConfig.setMaxFullFlushMergeWaitMillis(long)

Parameters:

merge - specification to be tracked