org.apache.lens.cube.metadata
Class TimePartitionRange

java.lang.Object
  org.apache.lens.cube.metadata.TimePartitionRange

All Implemented Interfaces:

Iterable<TimePartition>, Named

public class TimePartitionRange
extends Object
implements Iterable<TimePartition>, Named

Range of time partition. [begin,end). i.e. inclusive begin and exclusive end.

Constructor Summary

TimePartitionRange(TimePartition begin, TimePartition end)

Method Summary

boolean	contains(TimePartition partition)
String	getName()
boolean	isEmpty()
Iterator<TimePartition>	iterator() returns TimePartition objects starting from begin and upto(excluding) end.
static TimePartitionRange	parseFrom(UpdatePeriod updatePeriod, String from, String to)
long	size()
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

TimePartitionRange

public TimePartitionRange(TimePartition begin,
                          TimePartition end)
                   throws LensException

Throws:

LensException

Method Detail

toString

public String toString()

Overrides:

toString in class Object

iterator

public Iterator<TimePartition> iterator()

returns TimePartition objects starting from begin and upto(excluding) end. interval of iteration is the update period of the partitions. Assumes both partitions have same update period.

Specified by:

iterator in interface Iterable<TimePartition>

contains

public boolean contains(TimePartition partition)

Parameters:

partition -

Returns:

begin <= partition < end

isEmpty

public boolean isEmpty()

Returns:

if range is empty range.

getName

public String getName()

Specified by:

getName in interface Named

parseFrom

public static TimePartitionRange parseFrom(UpdatePeriod updatePeriod,
                                           String from,
                                           String to)
                                    throws LensException

Throws:

LensException

size

public long size()