Package org.apache.druid.segment.join

Class PostJoinCursor

java.lang.Object

org.apache.druid.segment.join.PostJoinCursor

All Implemented Interfaces:

Cursor

public class PostJoinCursor
extends Object
implements Cursor

A Cursor decorator used by HashJoinSegmentStorageAdapter.makeCursors(org.apache.druid.query.filter.Filter, org.joda.time.Interval, org.apache.druid.segment.VirtualColumns, org.apache.druid.java.util.common.granularity.Granularity, boolean, org.apache.druid.query.QueryMetrics<?>) to add post-join virtual columns and filters.

Method Summary

Modifier and Type	Method	Description
void	advance()
void	advanceUninterruptibly()
ColumnSelectorFactory	getColumnSelectorFactory()
Filter	getPostJoinFilter()
org.joda.time.DateTime	getTime()
boolean	isDone()
boolean	isDoneOrInterrupted()
void	reset()
void	setValueMatcher(ValueMatcher valueMatcher)
static PostJoinCursor	wrap(Cursor baseCursor, VirtualColumns virtualColumns, Filter filter)

Methods inherited from class java.lang.Object

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

Method Detail

wrap

public static PostJoinCursor wrap(Cursor baseCursor,
                                  VirtualColumns virtualColumns,
                                  @Nullable
                                  Filter filter)

setValueMatcher

public void setValueMatcher(@Nullable
                            ValueMatcher valueMatcher)

getColumnSelectorFactory

public ColumnSelectorFactory getColumnSelectorFactory()

Specified by:

getColumnSelectorFactory in interface Cursor

getTime

public org.joda.time.DateTime getTime()

Specified by:

getTime in interface Cursor

getPostJoinFilter

@Nullable
public Filter getPostJoinFilter()

advance

public void advance()

Specified by:

advance in interface Cursor

advanceUninterruptibly

public void advanceUninterruptibly()

Specified by:

advanceUninterruptibly in interface Cursor

isDone

public boolean isDone()

Specified by:

isDone in interface Cursor

isDoneOrInterrupted

public boolean isDoneOrInterrupted()

Specified by:

isDoneOrInterrupted in interface Cursor

reset

public void reset()

Specified by:

reset in interface Cursor