org.apache.druid.segment.virtual

Class ExpressionVectorInputBinding

java.lang.Object

org.apache.druid.segment.virtual.ExpressionVectorInputBinding

All Implemented Interfaces:

Expr.InputBindingInspector, Expr.VectorInputBinding, Expr.VectorInputBindingInspector

public class ExpressionVectorInputBinding
extends Object
implements Expr.VectorInputBinding

Constructor Summary

Constructors

Constructor and Description
ExpressionVectorInputBinding(ReadableVectorInspector vectorInspector)

Method Summary

Modifier and Type	Method and Description
ExpressionVectorInputBinding	addNumeric(String name, ExpressionType type, VectorValueSelector selector)
ExpressionVectorInputBinding	addObjectSelector(String name, ExpressionType type, VectorObjectSelector selector)
int	getCurrentVectorId() Returns an integer that uniquely identifies the current position of the underlying vector offset, if this binding is backed by a segment.
int	getCurrentVectorSize()
double[]	getDoubleVector(String name)
long[]	getLongVector(String name)
int	getMaxVectorSize()
boolean[]	getNullVector(String name)
Object[]	getObjectVector(String name)
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)

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

Constructor Detail

ExpressionVectorInputBinding

public ExpressionVectorInputBinding(ReadableVectorInspector vectorInspector)

Method Detail

addNumeric

public ExpressionVectorInputBinding addNumeric(String name,
                                               ExpressionType type,
                                               VectorValueSelector selector)

addObjectSelector

public ExpressionVectorInputBinding addObjectSelector(String name,
                                                      ExpressionType type,
                                                      VectorObjectSelector selector)

getType

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

getObjectVector

public Object[] getObjectVector(String name)

Specified by:

getObjectVector in interface Expr.VectorInputBinding

getLongVector

public long[] getLongVector(String name)

Specified by:

getLongVector in interface Expr.VectorInputBinding

getDoubleVector

public double[] getDoubleVector(String name)

Specified by:

getDoubleVector in interface Expr.VectorInputBinding

getNullVector

@Nullable
public boolean[] getNullVector(String name)

Specified by:

getNullVector in interface Expr.VectorInputBinding

getMaxVectorSize

public int getMaxVectorSize()

Specified by:

getMaxVectorSize in interface Expr.VectorInputBindingInspector

getCurrentVectorSize

public int getCurrentVectorSize()

Specified by:

getCurrentVectorSize in interface Expr.VectorInputBinding

getCurrentVectorId

public int getCurrentVectorId()

Description copied from interface: Expr.VectorInputBinding

Returns an integer that uniquely identifies the current position of the underlying vector offset, if this binding is backed by a segment. This is useful for caching: it is safe to assume nothing has changed in the offset so long as the id remains the same. See also: ReadableVectorOffset (in druid-processing)

Specified by:

getCurrentVectorId in interface Expr.VectorInputBinding