org.apache.druid.math.expr

Interface Expr.VectorInputBinding

All Superinterfaces:

Expr.InputBindingInspector, Expr.VectorInputBindingInspector

All Known Implementing Classes:

ExpressionVectorInputBinding

Enclosing interface:

Expr

public static interface Expr.VectorInputBinding
extends Expr.VectorInputBindingInspector

Mechanism to supply batches of input values to a ExprVectorProcessor for optimized processing. Mirrors the vectorized column selector interfaces, and includes ExpressionType information about all input bindings which exist

Method Summary

Modifier and Type	Method and Description
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)
boolean[]	getNullVector(String name)
<T> T[]	getObjectVector(String name)

Methods inherited from interface org.apache.druid.math.expr.Expr.VectorInputBindingInspector

getMaxVectorSize

Methods inherited from interface org.apache.druid.math.expr.Expr.InputBindingInspector

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

Method Detail

getObjectVector

<T> T[] getObjectVector(String name)

getLongVector

long[] getLongVector(String name)

getDoubleVector

double[] getDoubleVector(String name)

getNullVector

@Nullable
boolean[] getNullVector(String name)

getCurrentVectorSize

int getCurrentVectorSize()

getCurrentVectorId

int getCurrentVectorId()

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)