org.apache.druid.math.expr

Class Exprs

java.lang.Object

org.apache.druid.math.expr.Exprs

public class Exprs
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static byte	EXPR_CACHE_KEY

Constructor Summary

Constructors

Constructor and Description
Exprs()

Method Summary

Modifier and Type	Method and Description
static UnsupportedOperationException	cannotVectorize()
static UnsupportedOperationException	cannotVectorize(Expr expr)
static UnsupportedOperationException	cannotVectorize(Function function)
static UnsupportedOperationException	cannotVectorize(String msg)
static List<Expr>	decomposeAnd(Expr expr) Decomposes any expr into a list of exprs that, if ANDed together, are equivalent to the input expr.
static Optional<Pair<Expr,Expr>>	decomposeEquals(Expr expr) Decomposes an equality expr into the left- and right-hand side.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

EXPR_CACHE_KEY

public static final byte EXPR_CACHE_KEY

See Also:

Constant Field Values

Constructor Detail

Exprs

public Exprs()

Method Detail

cannotVectorize

public static UnsupportedOperationException cannotVectorize(Expr expr)

cannotVectorize

public static UnsupportedOperationException cannotVectorize(Function function)

cannotVectorize

public static UnsupportedOperationException cannotVectorize()

cannotVectorize

public static UnsupportedOperationException cannotVectorize(String msg)

decomposeAnd

public static List<Expr> decomposeAnd(Expr expr)

Decomposes any expr into a list of exprs that, if ANDed together, are equivalent to the input expr.

Parameters:

expr - any expr

Returns:

list of exprs that, if ANDed together, are equivalent to the input expr

decomposeEquals

public static Optional<Pair<Expr,Expr>> decomposeEquals(Expr expr)

Decomposes an equality expr into the left- and right-hand side.

Returns:

decomposed equality, or empty if the input expr was not an equality expr