org.apache.druid.segment.serde

Class StringFrontCodedColumnIndexSupplier

java.lang.Object

org.apache.druid.segment.serde.StringFrontCodedColumnIndexSupplier

All Implemented Interfaces:

ColumnIndexSupplier

public class StringFrontCodedColumnIndexSupplier
extends Object
implements ColumnIndexSupplier

Constructor Summary

Constructors

Constructor and Description
StringFrontCodedColumnIndexSupplier(BitmapFactory bitmapFactory, com.google.common.base.Supplier<FrontCodedIndexed> utf8Dictionary, GenericIndexed<ImmutableBitmap> bitmaps, ImmutableRTree indexedTree)

Method Summary

Modifier and Type	Method and Description
<T> T	as(Class<T> clazz) Try to get a column 'index' of the specified type.

Methods inherited from class java.lang.Object

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

Constructor Detail

StringFrontCodedColumnIndexSupplier

public StringFrontCodedColumnIndexSupplier(BitmapFactory bitmapFactory,
                                           com.google.common.base.Supplier<FrontCodedIndexed> utf8Dictionary,
                                           @Nullable
                                           GenericIndexed<ImmutableBitmap> bitmaps,
                                           @Nullable
                                           ImmutableRTree indexedTree)

Method Detail

as

@Nullable
public <T> T as(Class<T> clazz)

Description copied from interface: ColumnIndexSupplier

Try to get a column 'index' of the specified type. If the index of the desired type is not available, this method will return null. If the value is non-null, the index may be used for the eventual construction of an Offset to form the basis of a Cursor (or VectorOffset and VectorCursor) which can greatly reduce the total number of rows which need to be scanned and processed. Objects returned by this method are not thread-safe.

Specified by:

as in interface ColumnIndexSupplier