org.apache.druid.segment

Class IndexMergerV9

java.lang.Object

org.apache.druid.segment.IndexMergerV9

All Implemented Interfaces:

IndexMerger

public class IndexMergerV9
extends Object
implements IndexMerger

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.druid.segment.IndexMerger

IndexMerger.DictionaryMergeIterator, IndexMerger.IndexSeeker, IndexMerger.IndexSeekerWithConversion

Field Summary

Fields

Modifier and Type	Field and Description
static ColumnCapabilities.CoercionLogic	DIMENSION_CAPABILITY_MERGE_LOGIC
static ColumnCapabilities.CoercionLogic	METRIC_CAPABILITY_MERGE_LOGIC

Fields inherited from interface org.apache.druid.segment.IndexMerger

INVALID_ROW, SERIALIZER_UTILS, UNLIMITED_MAX_COLUMNS_TO_MERGE

Constructor Summary

Constructors

Constructor and Description
IndexMergerV9(com.fasterxml.jackson.databind.ObjectMapper mapper, IndexIO indexIO, SegmentWriteOutMediumFactory defaultSegmentWriteOutMediumFactory)

Method Summary

Modifier and Type	Method and Description
File	append(List<IndexableAdapter> indexes, AggregatorFactory[] aggregators, File outDir, IndexSpec indexSpec, SegmentWriteOutMediumFactory segmentWriteOutMediumFactory)
File	convert(File inDir, File outDir, IndexSpec indexSpec)
File	merge(List<IndexableAdapter> indexes, boolean rollup, AggregatorFactory[] metricAggs, File outDir, IndexSpec indexSpec, int maxColumnsToMerge)
File	mergeQueryableIndex(List<QueryableIndex> indexes, boolean rollup, AggregatorFactory[] metricAggs, DimensionsSpec dimensionsSpec, File outDir, IndexSpec indexSpec, ProgressIndicator progress, SegmentWriteOutMediumFactory segmentWriteOutMediumFactory, int maxColumnsToMerge)
File	mergeQueryableIndex(List<QueryableIndex> indexes, boolean rollup, AggregatorFactory[] metricAggs, DimensionsSpec dimensionsSpec, File outDir, IndexSpec indexSpec, SegmentWriteOutMediumFactory segmentWriteOutMediumFactory, int maxColumnsToMerge)
File	mergeQueryableIndex(List<QueryableIndex> indexes, boolean rollup, AggregatorFactory[] metricAggs, File outDir, IndexSpec indexSpec, SegmentWriteOutMediumFactory segmentWriteOutMediumFactory, int maxColumnsToMerge)
File	persist(IncrementalIndex index, File outDir, IndexSpec indexSpec, SegmentWriteOutMediumFactory segmentWriteOutMediumFactory)
File	persist(IncrementalIndex index, org.joda.time.Interval dataInterval, File outDir, IndexSpec indexSpec, ProgressIndicator progress, SegmentWriteOutMediumFactory segmentWriteOutMediumFactory)
File	persist(IncrementalIndex index, org.joda.time.Interval dataInterval, File outDir, IndexSpec indexSpec, SegmentWriteOutMediumFactory segmentWriteOutMediumFactory) This is *not* thread-safe and havok will ensue if this is called and writes are still occurring on the IncrementalIndex object.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.druid.segment.IndexMerger

getLexicographicMergedDimensions, getLongestSharedDimOrder, getMergedDimensions, getMergedDimensionsFromQueryableIndexes, isDimensionOrderingValid, makeRowIteratorWithConvertedDimensionColumns, mergeIndexed, toIndexableAdapters, toMergedIndexRowIterator

Field Detail

DIMENSION_CAPABILITY_MERGE_LOGIC

public static final ColumnCapabilities.CoercionLogic DIMENSION_CAPABILITY_MERGE_LOGIC

METRIC_CAPABILITY_MERGE_LOGIC

public static final ColumnCapabilities.CoercionLogic METRIC_CAPABILITY_MERGE_LOGIC

Constructor Detail

IndexMergerV9

@Inject
public IndexMergerV9(com.fasterxml.jackson.databind.ObjectMapper mapper,
                             IndexIO indexIO,
                             SegmentWriteOutMediumFactory defaultSegmentWriteOutMediumFactory)

Method Detail

persist

public File persist(IncrementalIndex index,
                    File outDir,
                    IndexSpec indexSpec,
                    @Nullable
                    SegmentWriteOutMediumFactory segmentWriteOutMediumFactory)
             throws IOException

Specified by:

persist in interface IndexMerger

Throws:

IOException

persist

public File persist(IncrementalIndex index,
                    org.joda.time.Interval dataInterval,
                    File outDir,
                    IndexSpec indexSpec,
                    @Nullable
                    SegmentWriteOutMediumFactory segmentWriteOutMediumFactory)
             throws IOException

Description copied from interface: IndexMerger

This is *not* thread-safe and havok will ensue if this is called and writes are still occurring on the IncrementalIndex object.

Specified by:

persist in interface IndexMerger

Parameters:

index - the IncrementalIndex to persist

dataInterval - the Interval that the data represents

outDir - the directory to persist the data to

Returns:

the index output directory

Throws:

IOException - if an IO error occurs persisting the index

persist

public File persist(IncrementalIndex index,
                    org.joda.time.Interval dataInterval,
                    File outDir,
                    IndexSpec indexSpec,
                    ProgressIndicator progress,
                    @Nullable
                    SegmentWriteOutMediumFactory segmentWriteOutMediumFactory)
             throws IOException

Specified by:

persist in interface IndexMerger

Throws:

IOException

mergeQueryableIndex

public File mergeQueryableIndex(List<QueryableIndex> indexes,
                                boolean rollup,
                                AggregatorFactory[] metricAggs,
                                File outDir,
                                IndexSpec indexSpec,
                                @Nullable
                                SegmentWriteOutMediumFactory segmentWriteOutMediumFactory,
                                int maxColumnsToMerge)
                         throws IOException

Specified by:

mergeQueryableIndex in interface IndexMerger

Throws:

IOException

mergeQueryableIndex

public File mergeQueryableIndex(List<QueryableIndex> indexes,
                                boolean rollup,
                                AggregatorFactory[] metricAggs,
                                @Nullable
                                DimensionsSpec dimensionsSpec,
                                File outDir,
                                IndexSpec indexSpec,
                                @Nullable
                                SegmentWriteOutMediumFactory segmentWriteOutMediumFactory,
                                int maxColumnsToMerge)
                         throws IOException

Specified by:

mergeQueryableIndex in interface IndexMerger

Throws:

IOException

mergeQueryableIndex

public File mergeQueryableIndex(List<QueryableIndex> indexes,
                                boolean rollup,
                                AggregatorFactory[] metricAggs,
                                @Nullable
                                DimensionsSpec dimensionsSpec,
                                File outDir,
                                IndexSpec indexSpec,
                                ProgressIndicator progress,
                                @Nullable
                                SegmentWriteOutMediumFactory segmentWriteOutMediumFactory,
                                int maxColumnsToMerge)
                         throws IOException

Specified by:

mergeQueryableIndex in interface IndexMerger

Throws:

IOException

merge

public File merge(List<IndexableAdapter> indexes,
                  boolean rollup,
                  AggregatorFactory[] metricAggs,
                  File outDir,
                  IndexSpec indexSpec,
                  int maxColumnsToMerge)
           throws IOException

Specified by:

merge in interface IndexMerger

Throws:

IOException

convert

public File convert(File inDir,
                    File outDir,
                    IndexSpec indexSpec)
             throws IOException

Specified by:

convert in interface IndexMerger

Throws:

IOException

append

public File append(List<IndexableAdapter> indexes,
                   AggregatorFactory[] aggregators,
                   File outDir,
                   IndexSpec indexSpec,
                   @Nullable
                   SegmentWriteOutMediumFactory segmentWriteOutMediumFactory)
            throws IOException

Specified by:

append in interface IndexMerger

Throws:

IOException