Package com.sap.cds.adapter.odata.v4.query.apply

Class FilterByAggregateTransformation

java.lang.Object

com.sap.cds.adapter.odata.v4.query.apply.FilterByAggregateTransformation

All Implemented Interfaces:

Transformation, Function<com.sap.cds.ql.Select<?>,com.sap.cds.ql.Select<?>>, UnaryOperator<com.sap.cds.ql.Select<?>>

public class FilterByAggregateTransformation
extends Object
implements Transformation

Support "filtering on leaf level" - retain only those rows from the input set which belong to a group of dimensions where aggregated values match a given filter.

Constructor Summary

Constructors

Constructor	Description
FilterByAggregateTransformation(List<GroupByItem> gByItems, Expression filter, ExpressionParser expressionParser)

Method Summary

Modifier and Type	Method	Description
com.sap.cds.ql.Select<?>	apply(com.sap.cds.ql.Select<?> select)
int	rank()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose

Methods inherited from interface com.sap.cds.adapter.odata.v4.query.apply.Transformation

requiresWrapping

Constructor Details

FilterByAggregateTransformation

public FilterByAggregateTransformation(List<GroupByItem> gByItems,
 Expression filter,
 ExpressionParser expressionParser)

Method Details

apply

public com.sap.cds.ql.Select<?> apply(com.sap.cds.ql.Select<?> select)

Specified by:

apply in interface Function<com.sap.cds.ql.Select<?>,com.sap.cds.ql.Select<?>>

rank

public int rank()

Specified by:

rank in interface Transformation