org.apache.druid.java.util.common

Interface Cacheable

All Known Subinterfaces:

ColumnIncluderator, DimensionSpec, DimFilter, Expr, ExprMacroTable.ExprMacroFunctionExpr, ExtractionFn, HavingSpec, LimitSpec, PostAggregator, SearchQuerySpec, TopNMetricSpec, VirtualColumn

All Known Implementing Classes:

AbstractOptimizableDimFilter, AggregatorFactory, AllColumnIncluderator, AllGranularity, AllSearchQuerySpec, AlphaNumericTopNMetricSpec, AlwaysHavingSpec, AndDimFilter, AndHavingSpec, ArithmeticPostAggregator, BaseFilteredDimensionSpec, BoundDimFilter, BucketExtractionFn, CardinalityAggregatorFactory, CascadeExtractionFn, ColumnComparisonDimFilter, ConstantPostAggregator, ContainsSearchQuerySpec, CountAggregatorFactory, DefaultDimensionSpec, DefaultLimitSpec, DimensionSelectorHavingSpec, DimensionTopNMetricSpec, DimExtractionFn, DimFilterHavingSpec, DoubleAnyAggregatorFactory, DoubleFirstAggregatorFactory, DoubleGreatestPostAggregator, DoubleLastAggregatorFactory, DoubleLeastPostAggregator, DoubleMaxAggregatorFactory, DoubleMeanAggregatorFactory, DoubleMinAggregatorFactory, DoubleSumAggregatorFactory, DurationGranularity, EqualityFilter, EqualToHavingSpec, ExpressionDimFilter, ExpressionLambdaAggregatorFactory, ExpressionPostAggregator, ExpressionVirtualColumn, ExprMacroTable.BaseScalarMacroFunctionExpr, ExprMacroTable.BaseScalarUnivariateMacroFunctionExpr, ExtractionDimensionSpec, ExtractionDimFilter, FallbackVirtualColumn, FalseDimFilter, FieldAccessPostAggregator, FilteredAggregatorFactory, FinalizingFieldAccessPostAggregator, FloatAnyAggregatorFactory, FloatFirstAggregatorFactory, FloatLastAggregatorFactory, FloatMaxAggregatorFactory, FloatMinAggregatorFactory, FloatSumAggregatorFactory, FragmentSearchQuerySpec, FunctionalExtraction, Granularity, GreaterThanHavingSpec, GroupingAggregatorFactory, HistogramAggregatorFactory, HyperUniqueFinalizingPostAggregator, HyperUniquesAggregatorFactory, IdentityExtractionFn, InDimFilter, InsensitiveContainsSearchQuerySpec, IntervalDimFilter, InvertedTopNMetricSpec, JavaScriptAggregatorFactory, JavaScriptDimFilter, JavaScriptExtractionFn, JavaScriptPostAggregator, LegacyDimensionSpec, LegacyTopNMetricSpec, LessThanHavingSpec, LexicographicTopNMetricSpec, LikeDimFilter, ListColumnIncluderator, ListFilteredDimensionSpec, ListFilteredVirtualColumn, LongAnyAggregatorFactory, LongFirstAggregatorFactory, LongGreatestPostAggregator, LongLastAggregatorFactory, LongLeastPostAggregator, LongMaxAggregatorFactory, LongMinAggregatorFactory, LongSumAggregatorFactory, LookupDimensionSpec, LookupExtractionFn, LowerExtractionFn, MatchingDimExtractionFn, NestedFieldVirtualColumn, NeverHavingSpec, NoneColumnIncluderator, NoneGranularity, NoopLimitSpec, NotDimFilter, NotHavingSpec, NullableNumericAggregatorFactory, NullFilter, NumericTopNMetricSpec, OrDimFilter, OrHavingSpec, PeriodGranularity, PrefixFilteredDimensionSpec, RangeFilter, RegexDimExtractionFn, RegexDimFilter, RegexFilteredDimensionSpec, RegexSearchQuerySpec, RegisteredLookupExtractionFn, SearchQueryDimFilter, SearchQuerySpecDimExtractionFn, SearchSortSpec, SegmentMetadataQuery.AnalysisType, SelectorDimFilter, SettableLongVirtualColumn, SimpleDoubleAggregatorFactory, SimpleFloatAggregatorFactory, SimpleLongAggregatorFactory, SpatialDimFilter, StringAnyAggregatorFactory, StringEncoding, StringFirstAggregatorFactory, StringFirstFoldingAggregatorFactory, StringFormatExtractionFn, StringLastAggregatorFactory, StringLastFoldingAggregatorFactory, StrlenExtractionFn, SubstringDimExtractionFn, SuppressedAggregatorFactory, TimeDimExtractionFn, TimeFormatExtractionFn, TimestampFloorExprMacro.TimestampFloorDynamicExpr, TimestampFloorExprMacro.TimestampFloorExpr, TrueDimFilter, UpperExtractionFn, VirtualColumns

public interface Cacheable

Method Summary

Modifier and Type	Method and Description
byte[]	getCacheKey() Get a byte array used as a cache key.

Method Detail

getCacheKey

byte[] getCacheKey()

Get a byte array used as a cache key.

Returns:

a cache key