Class AggregateAnalysis

java.lang.Object

com.kingsrook.qqq.backend.core.utils.aggregates.AggregateAnalysis

public final class AggregateAnalysis
extends Object

Shared validation, result types and bucket semantics for aggregate execution.

Constructor Summary

Constructors

Constructor	Description
AggregateAnalysis()

Method Summary

Modifier and Type	Method	Description
static List<Aggregate>	aggregatesIncludingOrderBy(AggregateInput input)	Order-only aggregates need capabilities, validation and accumulator state too.
static Serializable	applyFormatString(Serializable value, GroupBy groupBy)	Legacy format-string support shared with memory aggregation.
static Serializable	bucket(Serializable value, GroupByBucket bucket, ZoneId zone)	Bucket a value in the session zone.
static QFieldType	bucketType(GroupBy group)	Result type for bucket keys.
static Set<AggregateCapability>	requiredCapabilities(AggregateInput input)	Capabilities required by operators and buckets; sampling is best effort.
static QFieldType	resultType(Aggregate aggregate, QFieldType sourceType)	Result type for the new operators, preserving legacy caller overrides.
static void	validate(AggregateInput input)	Validate extension parameters before either execution path.

Methods inherited from class java.lang.Object

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

Constructor Details

AggregateAnalysis

public AggregateAnalysis()

Method Details

requiredCapabilities

public static Set<AggregateCapability> requiredCapabilities(AggregateInput input)

Capabilities required by operators and buckets; sampling is best effort.

validate

public static void validate(AggregateInput input)
                     throws QException

Validate extension parameters before either execution path.

Throws:

QException

resultType

public static QFieldType resultType(Aggregate aggregate,
 QFieldType sourceType)

Result type for the new operators, preserving legacy caller overrides.

bucketType

public static QFieldType bucketType(GroupBy group)

Result type for bucket keys.

bucket

public static Serializable bucket(Serializable value,
 GroupByBucket bucket,
 ZoneId zone)

Bucket a value in the session zone. The final numeric interval includes max.

applyFormatString

public static Serializable applyFormatString(Serializable value,
 GroupBy groupBy)
                                      throws QException

Legacy format-string support shared with memory aggregation.

Throws:

QException

aggregatesIncludingOrderBy

public static List<Aggregate> aggregatesIncludingOrderBy(AggregateInput input)

Order-only aggregates need capabilities, validation and accumulator state too.