Package org.elasticsearch.xpack.esql.parser.promql

Class PromqlFoldingUtils

java.lang.Object

org.elasticsearch.xpack.esql.parser.promql.PromqlFoldingUtils

public class PromqlFoldingUtils
extends Object

Utility class for evaluating scalar arithmetic operations at parse time. Handles operations between: - Numbers (delegates to Arithmetics) - Durations and numbers (converts to seconds, computes, converts back) - Durations and durations (only for ADD/SUB)

Constructor Summary

Constructors

Constructor	Description
PromqlFoldingUtils()

Method Summary

Modifier and Type	Method	Description
static Object	evaluate(Source source, Object left, Object right, VectorBinaryArithmetic.ArithmeticOp operation)	Evaluate arithmetic operation between two scalar values at parse time.
static boolean	evaluate(Source source, Object left, Object right, VectorBinaryComparison.ComparisonOp operation)	Evaluate comparison operation between two numbers at parse time.

Methods inherited from class java.lang.Object

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

Constructor Details

PromqlFoldingUtils

public PromqlFoldingUtils()

Method Details

evaluate

public static Object evaluate(Source source,
 Object left,
 Object right,
 VectorBinaryArithmetic.ArithmeticOp operation)

Evaluate arithmetic operation between two scalar values at parse time.

Parameters:

source - Source location for error messages

left - Left operand (Number or Duration)

right - Right operand (Number or Duration)

operation - The arithmetic operation

Returns:

Result value (Number or Duration)

evaluate

public static boolean evaluate(Source source,
 Object left,
 Object right,
 VectorBinaryComparison.ComparisonOp operation)

Evaluate comparison operation between two numbers at parse time.

Parameters:

left - Left operand (Number)

right - Right operand (Number)

operation - The comparison operation

Returns:

true if comparison holds, false otherwise