Package org.apache.druid.math.expr

Class ApplyFunction.MapLambdaBinding

java.lang.Object

org.apache.druid.math.expr.ApplyFunction.MapLambdaBinding

All Implemented Interfaces:

ApplyFunction.IndexableMapLambdaObjectBinding, Expr.InputBindingInspector, Expr.ObjectBinding

Enclosing interface:

ApplyFunction

public static class ApplyFunction.MapLambdaBinding
extends Object
implements ApplyFunction.IndexableMapLambdaObjectBinding

ApplyFunction.IndexableMapLambdaObjectBinding for a ApplyFunction.MapFunction. Lambda argument binding is stored in an object array, retrieving binding values for the lambda identifier returns the value at the current index.

Method Summary

Modifier and Type	Method	Description
Object	get(String name)	Get value binding for string identifier of IdentifierExpr
int	getLength()	Total number of bindings in this binding
ExpressionType	getType(String name)	Get the ExpressionType from the backing store for a given identifier (this is likely a column, but could be other things depending on the backing adapter)
ApplyFunction.MapLambdaBinding	withIndex(int index)	Update index position

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.math.expr.Expr.InputBindingInspector

areNumeric, areNumeric, areSameTypes, areSameTypes, areScalar, areScalar, canVectorize, canVectorize

Method Details

get

@Nullable
public Object get(String name)

Description copied from interface: Expr.ObjectBinding

Get value binding for string identifier of IdentifierExpr

Specified by:

get in interface Expr.ObjectBinding

getLength

public int getLength()

Description copied from interface: ApplyFunction.IndexableMapLambdaObjectBinding

Total number of bindings in this binding

Specified by:

getLength in interface ApplyFunction.IndexableMapLambdaObjectBinding

withIndex

public ApplyFunction.MapLambdaBinding withIndex(int index)

Description copied from interface: ApplyFunction.IndexableMapLambdaObjectBinding

Update index position

Specified by:

withIndex in interface ApplyFunction.IndexableMapLambdaObjectBinding

getType

@Nullable
public ExpressionType getType(String name)

Description copied from interface: Expr.InputBindingInspector

Get the ExpressionType from the backing store for a given identifier (this is likely a column, but could be other things depending on the backing adapter)

Specified by:

getType in interface Expr.InputBindingInspector