org.neo4j.storageengine.api.schema

Interface IndexSampler

public interface IndexSampler

Component able to sample schema index.

Field Summary

Fields

Modifier and Type	Field and Description
static IndexSampler	EMPTY

Method Summary

Modifier and Type	Method and Description
long	sampleIndex(org.neo4j.register.Register.DoubleLong.Out result) Sample this index (on the current thread)

Field Detail

EMPTY

static final IndexSampler EMPTY

Method Detail

sampleIndex

long sampleIndex(org.neo4j.register.Register.DoubleLong.Out result)
          throws org.neo4j.kernel.api.exceptions.index.IndexNotFoundKernelException

Sample this index (on the current thread)

Parameters:

result - contains the unique values and the sampled size

Returns:

the index size

Throws:

org.neo4j.kernel.api.exceptions.index.IndexNotFoundKernelException - if the index is dropped while sampling