Package org.apache.cassandra.db.filter

Class AbstractClusteringIndexFilter

java.lang.Object

org.apache.cassandra.db.filter.AbstractClusteringIndexFilter

All Implemented Interfaces:

ClusteringIndexFilter

Direct Known Subclasses:

ClusteringIndexNamesFilter, ClusteringIndexSliceFilter

public abstract class AbstractClusteringIndexFilter
extends Object
implements ClusteringIndexFilter

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.cassandra.db.filter.ClusteringIndexFilter

ClusteringIndexFilter.InternalDeserializer, ClusteringIndexFilter.Kind, ClusteringIndexFilter.Serializer

Field Summary

Fields

Modifier and Type	Field	Description
protected final boolean	reversed

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractClusteringIndexFilter(boolean reversed)

Method Summary

Modifier and Type	Method	Description
protected void	appendOrderByToCQLString(TableMetadata metadata, StringBuilder sb)
boolean	isEmpty(ClusteringComparator comparator)
boolean	isReversed()	Whether the filter query rows in reversed clustering order or not.
protected abstract long	serializedSizeInternal(int version)
protected abstract void	serializeInternal(DataOutputPlus out, int version)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.cassandra.db.filter.ClusteringIndexFilter

filterNotIndexed, forPaging, getSlices, getUnfilteredRowIterator, intersects, isFullyCoveredBy, isHeadFilter, kind, selects, selectsAllPartition, toCQLString, toString

Field Details

reversed

protected final boolean reversed

Constructor Details

AbstractClusteringIndexFilter

protected AbstractClusteringIndexFilter(boolean reversed)

Method Details

isReversed

public boolean isReversed()

Description copied from interface: ClusteringIndexFilter

Whether the filter query rows in reversed clustering order or not.

Specified by:

isReversed in interface ClusteringIndexFilter

Returns:

whether the filter query rows in reversed clustering order or not.

isEmpty

public boolean isEmpty(ClusteringComparator comparator)

Specified by:

isEmpty in interface ClusteringIndexFilter

serializeInternal

protected abstract void serializeInternal(DataOutputPlus out,
 int version)
                                   throws IOException

Throws:

IOException

serializedSizeInternal

protected abstract long serializedSizeInternal(int version)

appendOrderByToCQLString

protected void appendOrderByToCQLString(TableMetadata metadata,
 StringBuilder sb)