Package org.apache.cassandra.db.virtual

Class AbstractVirtualTable.AbstractDataSet

java.lang.Object

org.apache.cassandra.db.virtual.AbstractVirtualTable.AbstractDataSet

All Implemented Interfaces:

AbstractVirtualTable.DataSet

Direct Known Subclasses:

SimpleDataSet

Enclosing class:

AbstractVirtualTable

public abstract static class AbstractVirtualTable.AbstractDataSet
extends java.lang.Object
implements AbstractVirtualTable.DataSet

An abstract, map-backed DataSet implementation. Can be backed by any NavigableMap, then either maintained persistently, or built on demand and thrown away after use, depending on the implementing class.

Field Summary

Fields

Modifier and Type	Field	Description
protected java.util.NavigableMap<DecoratedKey,AbstractVirtualTable.Partition>	partitions

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractDataSet(java.util.NavigableMap<DecoratedKey,AbstractVirtualTable.Partition> partitions)

Method Summary

Modifier and Type	Method	Description
AbstractVirtualTable.Partition	getPartition(DecoratedKey key)
java.util.Iterator<AbstractVirtualTable.Partition>	getPartitions(DataRange dataRange)
boolean	isEmpty()

Methods inherited from class java.lang.Object

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

Field Detail

partitions

protected final java.util.NavigableMap<DecoratedKey,AbstractVirtualTable.Partition> partitions

Constructor Detail

AbstractDataSet

protected AbstractDataSet(java.util.NavigableMap<DecoratedKey,AbstractVirtualTable.Partition> partitions)

Method Detail

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface AbstractVirtualTable.DataSet

getPartition

public AbstractVirtualTable.Partition getPartition(DecoratedKey key)

Specified by:

getPartition in interface AbstractVirtualTable.DataSet

getPartitions

public java.util.Iterator<AbstractVirtualTable.Partition> getPartitions(DataRange dataRange)

Specified by:

getPartitions in interface AbstractVirtualTable.DataSet