Package org.apache.druid.segment.join

Class JoinableFactoryWrapper

java.lang.Object

org.apache.druid.segment.join.JoinableFactoryWrapper

public class JoinableFactoryWrapper
extends Object

A wrapper class over JoinableFactory for working with Joinable related classes.

Field Summary

Fields

Modifier and Type	Field	Description
static byte	JOIN_OPERATION

Constructor Summary

Constructors

Constructor	Description
JoinableFactoryWrapper(JoinableFactory joinableFactory)

Method Summary

Modifier and Type	Method	Description
static Pair<List<Filter>,List<JoinableClause>>	convertJoinsToFilters(List<JoinableClause> clauses, Set<String> requiredColumns, int maxNumFilterValues)	Converts any join clauses to filters that can be converted, and returns the rest as-is.
JoinableFactory	getJoinableFactory()

Methods inherited from class java.lang.Object

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

Field Detail

JOIN_OPERATION

public static final byte JOIN_OPERATION

See Also:

Constant Field Values

Constructor Detail

JoinableFactoryWrapper

@Inject
public JoinableFactoryWrapper(JoinableFactory joinableFactory)

Method Detail

convertJoinsToFilters

public static Pair<List<Filter>,List<JoinableClause>> convertJoinsToFilters(List<JoinableClause> clauses,
                                                                                  Set<String> requiredColumns,
                                                                                  int maxNumFilterValues)

Converts any join clauses to filters that can be converted, and returns the rest as-is.

See convertJoinToFilter(org.apache.druid.segment.join.JoinableClause, java.util.Set<java.lang.String>, int, java.util.Set<java.lang.String>) for details on the logic.

getJoinableFactory

public JoinableFactory getJoinableFactory()