com.google.cloud.bigtable.hbase.adapters.filters

Class TypedFilterAdapterBase<S extends org.apache.hadoop.hbase.filter.Filter>

java.lang.Object

com.google.cloud.bigtable.hbase.adapters.filters.TypedFilterAdapterBase<S>

All Implemented Interfaces:

TypedFilterAdapter<S>

Direct Known Subclasses:

BigtableFilterAdapter, ColumnCountGetFilterAdapter, ColumnPaginationFilterAdapter, ColumnPrefixFilterAdapter, ColumnRangeFilterAdapter, FamilyFilterAdapter, FilterListAdapter, FirstKeyOnlyFilterAdapter, FuzzyRowFilterAdapter, KeyOnlyFilterAdapter, MultipleColumnPrefixFilterAdapter, MultiRowRangeFilterAdapter, PageFilterAdapter, PrefixFilterAdapter, QualifierFilterAdapter, RandomRowFilterAdapter, RowFilterAdapter, SingleColumnValueExcludeFilterAdapter, SingleColumnValueFilterAdapter, TimestampRangeFilterAdapter, TimestampsFilterAdapter, ValueFilterAdapter, WhileMatchFilterAdapter

@InternalApi(value="For internal usage only")
public abstract class TypedFilterAdapterBase<S extends org.apache.hadoop.hbase.filter.Filter>
extends Object
implements TypedFilterAdapter<S>

Base functionality for all filter adapters

For internal use only - public for technical reasons.

Constructor Summary

Constructors

Constructor and Description
TypedFilterAdapterBase()

Method Summary

Modifier and Type	Method and Description
com.google.common.collect.RangeSet<RowKeyWrapper>	getIndexScanHint(S filter) Get hints how to optimize the scan.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.cloud.bigtable.hbase.adapters.filters.TypedFilterAdapter

adapt, isFilterSupported

Constructor Detail

TypedFilterAdapterBase

public TypedFilterAdapterBase()

Method Detail

getIndexScanHint

public com.google.common.collect.RangeSet<RowKeyWrapper> getIndexScanHint(S filter)

Description copied from interface: TypedFilterAdapter

Get hints how to optimize the scan. For example if the filter will narrow the scan using the prefix "ab" then we can restrict the scan to ["ab" - "ac"). If the filter doesn't narrow the scan then it should return Range.all()

Specified by:

getIndexScanHint in interface TypedFilterAdapter<S extends org.apache.hadoop.hbase.filter.Filter>

Parameters:

filter - a S object.

Returns:

a RangeSet object.