com.mapr.db

Interface MetaTable

All Superinterfaces:

java.lang.AutoCloseable, java.io.Closeable

@API.Internal
 @API.NotThreadSafe
public interface MetaTable
extends java.io.Closeable

Method Summary

Modifier and Type	Method and Description
long	getAverageRowSize()
java.util.List<ScanRange>	getScanRanges()
java.util.List<ScanRange>	getScanRanges(int chunkSizeMBs)
java.util.List<ScanRange>	getScanRanges(org.ojai.store.QueryCondition condition)
java.util.List<ScanRange>	getScanRanges(org.ojai.store.QueryCondition condition, int chunkSizeMBs) Returns a list of ScanRanges matching the specified condition
ScanStats	getScanStats()
ScanStats	getScanStats(org.ojai.store.QueryCondition condition)

Methods inherited from interface java.io.Closeable

close

Method Detail

getScanRanges

java.util.List<ScanRange> getScanRanges()
                                 throws DBException

Returns:

A List of all ScanRanges of the entire Table.

Throws:

DBException

getScanRanges

java.util.List<ScanRange> getScanRanges(int chunkSizeMBs)
                                 throws DBException

Parameters:

chunkSizeMBs - Approximate size of scan ranges to return. This is treated as hint and the API may return larger or smaller scan ranges.

Returns:

A List of all ScanRanges of the entire Table.

Throws:

DBException

getScanRanges

java.util.List<ScanRange> getScanRanges(@API.NonNullable
                                        org.ojai.store.QueryCondition condition)
                                 throws DBException

Parameters:

condition - a QueryCondition which should be used to, possibly, prune the scan ranges

Returns:

A List of all ScanRanges of the entire Table.

Throws:

DBException

getScanRanges

java.util.List<ScanRange> getScanRanges(@API.NonNullable
                                        org.ojai.store.QueryCondition condition,
                                        int chunkSizeMBs)
                                 throws DBException

Returns a list of ScanRanges matching the specified condition

Parameters:

condition - a QueryCondition which should be used to, possibly, prune the scan ranges

chunkSizeMBs - Approximate size of scan ranges to return. This is treated as hint and the API may return larger or smaller scan ranges.

Returns:

A List of ScanRange over this Table matching the specified condition.

Throws:

DBException

getScanStats

ScanStats getScanStats()
                throws DBException

Returns:

A the ScanStats for the entire Table.

Throws:

DBException

getScanStats

ScanStats getScanStats(@API.NonNullable
                       org.ojai.store.QueryCondition condition)
                throws DBException

Parameters:

condition - a condition object provided by the user or application

Returns:

A the ScanStats over this Table matching the specified condition.

Throws:

DBException

getAverageRowSize

long getAverageRowSize()
                throws DBException

Returns:

long Average row size of this table.

Throws:

DBException