com.yahoo.bard.webservice.table.resolver

Class AggregatableDimensionsMatcher

java.lang.Object

com.yahoo.bard.webservice.table.resolver.AggregatableDimensionsMatcher

All Implemented Interfaces:

PhysicalTableMatcher, Predicate<PhysicalTable>

public class AggregatableDimensionsMatcher
extends Object
implements PhysicalTableMatcher

Use the granularity and columns of a query to determine whether or not tables can satisfy this query.

If a given table contains non-agg dimensions, query must contain all these non-agg dimensions to use this table.

Field Summary

Fields

Modifier and Type	Field and Description
static org.slf4j.Logger	LOG
static ErrorMessageFormat	MESSAGE_FORMAT

Constructor Summary

Constructors

Constructor and Description
AggregatableDimensionsMatcher(QueryPlanningConstraint requestConstraint) Constructor saves metrics, dimensions, coarsest time grain, and logical table name (for logging).

Method Summary

Modifier and Type	Method and Description
NoMatchFoundException	noneFoundException() Exception to throw if no tables match.
boolean	test(PhysicalTable table) Determines whether this table matches a requirement.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.yahoo.bard.webservice.table.resolver.PhysicalTableMatcher

matchNotEmpty

Methods inherited from interface java.util.function.Predicate

and, isEqual, negate, or

Field Detail

LOG

public static final org.slf4j.Logger LOG

MESSAGE_FORMAT

public static final ErrorMessageFormat MESSAGE_FORMAT

Constructor Detail

AggregatableDimensionsMatcher

public AggregatableDimensionsMatcher(QueryPlanningConstraint requestConstraint)

Constructor saves metrics, dimensions, coarsest time grain, and logical table name (for logging).

Parameters:

requestConstraint - Contains the request constraints extracted from DataApiRequest and TemplateDruidQuery

Method Detail

test

public boolean test(PhysicalTable table)

Description copied from interface: PhysicalTableMatcher

Determines whether this table matches a requirement.

Specified by:

test in interface PhysicalTableMatcher

Specified by:

test in interface Predicate<PhysicalTable>

Parameters:

table - The table being tested

Returns:

True if the physical table has data which satisfies the request associated with this matcher.

noneFoundException

public NoMatchFoundException noneFoundException()

Description copied from interface: PhysicalTableMatcher

Exception to throw if no tables match.

Specified by:

noneFoundException in interface PhysicalTableMatcher

Returns:

exception to raise if no tables match