com.holonplatform.core.query

Interface QueryAggregation

All Superinterfaces:

Expression, Serializable

public interface QueryAggregation
extends Expression, Serializable

Represents a query results aggregation clause.

Since:

5.0.0

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	QueryAggregation.Builder QueryAggregation builder.
static interface	QueryAggregation.QueryAggregationSupport<C extends QueryAggregation.QueryAggregationSupport<C>> Interface implemented by classes which support QueryAggregations setting.

Nested classes/interfaces inherited from interface com.holonplatform.core.Expression

Expression.ExpressionResolverFunction<E extends Expression,R extends Expression>, Expression.InvalidExpressionException

Method Summary

Modifier and Type	Method and Description
static QueryAggregation.Builder	builder() Get a builder to create a QueryAggregation.
static QueryAggregation	create(List<Path> paths) Create a QueryAggregation using given aggregation paths
static QueryAggregation	create(Path<?>... paths) Create a QueryAggregation using given aggregation paths
Optional<QueryFilter>	getAggregationFilter() Get the optional restrictions to add to query aggregation, expressed as a QueryFilter clause.
Path<?>[]	getAggregationPaths() Get the paths for wich to aggregate the query results.

Methods inherited from interface com.holonplatform.core.Expression

validate

Method Detail

getAggregationPaths

Path<?>[] getAggregationPaths()

Get the paths for wich to aggregate the query results.

Returns:

Aggregation paths

getAggregationFilter

Optional<QueryFilter> getAggregationFilter()

Get the optional restrictions to add to query aggregation, expressed as a QueryFilter clause.

Returns:

Optional additional query restriction

create

static QueryAggregation create(Path<?>... paths)

Create a QueryAggregation using given aggregation paths

Parameters:

paths - Aggregation paths

Returns:

A new QueryAggregation on given paths

create

static QueryAggregation create(List<Path> paths)

Create a QueryAggregation using given aggregation paths

Parameters:

paths - Aggregation paths

Returns:

A new QueryAggregation on given paths

builder

static QueryAggregation.Builder builder()

Get a builder to create a QueryAggregation.

Returns:

QueryAggregation builder