@EverythingIsNonnullByDefault

Package org.apache.druid.segment.virtual

Class Summary

Class	Description
ExpressionColumnValueSelector	Basic expression ColumnValueSelector.
ExpressionMultiValueDimensionSelector	Basic multi-value dimension selector for an Expr evaluating ColumnValueSelector.
ExpressionPlan
ExpressionPlanner
ExpressionSelectors
ExpressionVectorObjectSelector
ExpressionVectorSelectors
ExpressionVectorValueSelector
ExpressionVirtualColumn
RowBasedExpressionColumnValueSelector	Expression column value selector that examines a set of 'unknown' type input bindings on a row by row basis, transforming the expression to handle multi-value list typed inputs as they are encountered.
SingleInputBindings
SingleLongInputCachingExpressionColumnValueSelector	Like ExpressionColumnValueSelector, but caches the most recently computed value and re-uses it in the case of runs in the underlying column.
SingleStringInputCachingExpressionColumnValueSelector	Like ExpressionColumnValueSelector, but caches results for the first CACHE_SIZE dictionary IDs of a string column.
SingleStringInputCachingExpressionColumnValueSelector.LruEvalCache
SingleStringInputDeferredEvaluationExpressionDimensionSelector	A DimensionSelector decorator that directly exposes the underlying dictionary id in SingleStringInputDeferredEvaluationExpressionDimensionSelector.getRow(), saving expression computation until SingleStringInputDeferredEvaluationExpressionDimensionSelector.lookupName(int) is called.
SingleStringInputDeferredEvaluationExpressionDimensionVectorSelector	A SingleValueDimensionVectorSelector decorator that directly exposes the underlying dictionary ids in SingleStringInputDeferredEvaluationExpressionDimensionVectorSelector.getRowVector(), saving expression computation until SingleStringInputDeferredEvaluationExpressionDimensionVectorSelector.lookupName(int) is called.
VirtualColumnCacheHelper
VirtualizedColumnInspector	Provides ColumnCapabilities for both virtual and non-virtual columns by building on top of another base ColumnInspector.
VirtualizedColumnSelectorFactory	ColumnSelectorFactory which can create selectors for both virtual and non-virtual columns

Enum Summary

Enum	Description
ExpressionPlan.Trait