org.apache.druid.query.metadata.metadata

Class SegmentMetadataQuery

java.lang.Object

org.apache.druid.query.BaseQuery<SegmentAnalysis>

org.apache.druid.query.metadata.metadata.SegmentMetadataQuery

All Implemented Interfaces:

Query<SegmentAnalysis>

public class SegmentMetadataQuery
extends BaseQuery<SegmentAnalysis>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SegmentMetadataQuery.AnalysisType

Field Summary

Fields

Modifier and Type	Field and Description
static byte[]	ANALYSIS_TYPES_CACHE_PREFIX The SegmentMetadataQuery cache key may contain UTF-8 column name strings.

Fields inherited from class org.apache.druid.query.BaseQuery

QUERY_ID, SQL_QUERY_ID, SUB_QUERY_ID

Fields inherited from interface org.apache.druid.query.Query

DATASOURCE_METADATA, GROUP_BY, SCAN, SEARCH, SEGMENT_METADATA, SELECT, TIME_BOUNDARY, TIMESERIES, TOPN

Constructor Summary

Constructors

Constructor and Description
SegmentMetadataQuery(DataSource dataSource, QuerySegmentSpec querySegmentSpec, ColumnIncluderator toInclude, Boolean merge, Map<String,Object> context, EnumSet<SegmentMetadataQuery.AnalysisType> analysisTypes, Boolean useDefaultInterval, Boolean lenientAggregatorMerge)

Method Summary

Modifier and Type	Method and Description
boolean	analyzingInterval()
boolean	equals(Object o)
EnumSet<SegmentMetadataQuery.AnalysisType>	getAnalysisTypes()
byte[]	getAnalysisTypesCacheKey()
DimFilter	getFilter()
List<org.joda.time.Interval>	getIntervals()
ColumnIncluderator	getToInclude()
String	getType()
boolean	hasAggregators()
boolean	hasFilters()
int	hashCode()
boolean	hasQueryGranularity()
boolean	hasRollup()
boolean	hasTimestampSpec()
boolean	isLenientAggregatorMerge()
boolean	isMerge()
boolean	isUsingDefaultInterval()
String	toString()
Query<SegmentAnalysis>	withColumns(ColumnIncluderator includerator)
Query<SegmentAnalysis>	withDataSource(DataSource dataSource)
SegmentMetadataQuery	withFinalizedAnalysisTypes(SegmentMetadataQueryConfig config)
Query<SegmentAnalysis>	withOverriddenContext(Map<String,Object> contextOverride)
Query<SegmentAnalysis>	withQuerySegmentSpec(QuerySegmentSpec spec) Returns a new query, identical to this one, but with a different associated QuerySegmentSpec.

Methods inherited from class org.apache.druid.query.BaseQuery

checkInterrupted, computeOverriddenContext, computeOverridenContext, getContext, getContextBoolean, getContextValue, getContextValue, getDataSource, getDuration, getGranularity, getId, getQuerySegmentSpec, getQuerySegmentSpecForLookUp, getResultOrdering, getRunner, getSqlQueryId, getSubQueryId, getTimezone, isDescending, withId, withSqlQueryId, withSubQueryId

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.druid.query.Query

getMostSpecificId, getVirtualColumns, optimizeForSegment, withDefaultSubQueryId, withLane, withPriority

Field Detail

ANALYSIS_TYPES_CACHE_PREFIX

public static final byte[] ANALYSIS_TYPES_CACHE_PREFIX

The SegmentMetadataQuery cache key may contain UTF-8 column name strings. Prepend 0xFF before the analysisTypes as a separator to avoid any potential confusion with string values.

Constructor Detail

SegmentMetadataQuery

public SegmentMetadataQuery(DataSource dataSource,
                            QuerySegmentSpec querySegmentSpec,
                            ColumnIncluderator toInclude,
                            Boolean merge,
                            Map<String,Object> context,
                            EnumSet<SegmentMetadataQuery.AnalysisType> analysisTypes,
                            Boolean useDefaultInterval,
                            Boolean lenientAggregatorMerge)

Method Detail

getToInclude

public ColumnIncluderator getToInclude()

isMerge

public boolean isMerge()

isUsingDefaultInterval

public boolean isUsingDefaultInterval()

hasFilters

public boolean hasFilters()

getFilter

public DimFilter getFilter()

getType

public String getType()

getAnalysisTypes

public EnumSet<SegmentMetadataQuery.AnalysisType> getAnalysisTypes()

isLenientAggregatorMerge

public boolean isLenientAggregatorMerge()

analyzingInterval

public boolean analyzingInterval()

hasAggregators

public boolean hasAggregators()

hasTimestampSpec

public boolean hasTimestampSpec()

hasQueryGranularity

public boolean hasQueryGranularity()

hasRollup

public boolean hasRollup()

getAnalysisTypesCacheKey

public byte[] getAnalysisTypesCacheKey()

withOverriddenContext

public Query<SegmentAnalysis> withOverriddenContext(Map<String,Object> contextOverride)

withQuerySegmentSpec

public Query<SegmentAnalysis> withQuerySegmentSpec(QuerySegmentSpec spec)

Description copied from interface: Query

Returns a new query, identical to this one, but with a different associated QuerySegmentSpec. This often changes the behavior of Query.getRunner(QuerySegmentWalker), since most queries inherit that method from BaseQuery, which implements it by calling QuerySegmentSpec.lookup(org.apache.druid.query.Query<T>, org.apache.druid.query.QuerySegmentWalker).

withDataSource

public Query<SegmentAnalysis> withDataSource(DataSource dataSource)

withColumns

public Query<SegmentAnalysis> withColumns(ColumnIncluderator includerator)

withFinalizedAnalysisTypes

public SegmentMetadataQuery withFinalizedAnalysisTypes(SegmentMetadataQueryConfig config)

getIntervals

public List<org.joda.time.Interval> getIntervals()

Specified by:

getIntervals in interface Query<SegmentAnalysis>

Overrides:

getIntervals in class BaseQuery<SegmentAnalysis>

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class BaseQuery<SegmentAnalysis>

hashCode

public int hashCode()

Overrides:

hashCode in class BaseQuery<SegmentAnalysis>