org.apache.lens.cube.metadata.timeline

Class RangesPartitionTimeline

java.lang.Object

org.apache.lens.cube.metadata.timeline.PartitionTimeline

org.apache.lens.cube.metadata.timeline.RangesPartitionTimeline

All Implemented Interfaces:

Iterable<TimePartition>

public class RangesPartitionTimeline
extends PartitionTimeline

One implementation of PartitionTimeline that stores ranges of partition presence, Basically a list of tuples each tuple represents a range of presence. range is of the form [from, end) i.e. including the first element and excluding the second element of the tuple

Constructor Summary

Constructors

Constructor and Description
RangesPartitionTimeline(String storageTableName, UpdatePeriod updatePeriod, String partCol)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	add(TimePartition partition) Add partition to timeline
boolean	add(TimePartitionRange partitionRange) Add partition range to the timeline.
boolean	drop(TimePartition toDrop) drop partition.
boolean	equals(Object o)
boolean	exists(TimePartition toCheck) Checks partition existance
TimePartitionRangeList	getRanges()
long	getTimeCovered()
int	hashCode()
boolean	initFromProperties(Map<String,String> properties) deserialize member variables from given map
boolean	isConsistent() whether timeline is in consistent state
boolean	isEmpty() Whether No partitions have been registered
Iterator<TimePartition>	iterator()
TimePartition	latest() latest partition.
void	setRanges(TimePartitionRangeList ranges)
Map<String,String>	toProperties() serialize member objects as map
String	toString()

Methods inherited from class org.apache.lens.cube.metadata.timeline.PartitionTimeline

add, addForBatchAddition, commitBatchAdditions, getAll, getLatestDate, getPartCol, getStorageTableName, getUpdatePeriod, init, setAll, updateTableParams

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

RangesPartitionTimeline

public RangesPartitionTimeline(String storageTableName,
                       UpdatePeriod updatePeriod,
                       String partCol)

Method Detail

add

public boolean add(TimePartition partition)
            throws LensException

Description copied from class: PartitionTimeline

Add partition to timeline

Specified by:

add in class PartitionTimeline

Returns:

whether add was successful

Throws:

LensException

add

public boolean add(TimePartitionRange partitionRange)
            throws LensException

Description copied from class: PartitionTimeline

Add partition range to the timeline. Default implementation is to iterate over the range and add each time partition belonging to the given range. Implementing classes can override.

Returns:

whether add was successful

Throws:

LensException

drop

public boolean drop(TimePartition toDrop)
             throws LensException

Description copied from class: PartitionTimeline

drop partition.

Specified by:

drop in class PartitionTimeline

Returns:

whether drop was successful

Throws:

LensException

latest

public TimePartition latest()

Description copied from class: PartitionTimeline

latest partition. will be null if no partitions exist.

Specified by:

latest in class PartitionTimeline

Returns:

toProperties

public Map<String,String> toProperties()

Description copied from class: PartitionTimeline

serialize member objects as map

Specified by:

toProperties in class PartitionTimeline

Returns:

initFromProperties

public boolean initFromProperties(Map<String,String> properties)
                           throws LensException

Description copied from class: PartitionTimeline

deserialize member variables from given map

Specified by:

initFromProperties in class PartitionTimeline

Returns:

true if after deserializing, the timeline is in consistent state

Throws:

LensException

See Also:

PartitionTimeline.isConsistent()

isEmpty

public boolean isEmpty()

Description copied from class: PartitionTimeline

Whether No partitions have been registered

Specified by:

isEmpty in class PartitionTimeline

Returns:

isConsistent

public boolean isConsistent()

Description copied from class: PartitionTimeline

whether timeline is in consistent state

Specified by:

isConsistent in class PartitionTimeline

Returns:

exists

public boolean exists(TimePartition toCheck)

Description copied from class: PartitionTimeline

Checks partition existance

Specified by:

exists in class PartitionTimeline

Returns:

iterator

public Iterator<TimePartition> iterator()

getTimeCovered

public long getTimeCovered()

getRanges

@Generated(value="lombok")
public TimePartitionRangeList getRanges()

setRanges

@Generated(value="lombok")
public void setRanges(TimePartitionRangeList ranges)

equals

@Generated(value="lombok")
public boolean equals(Object o)

Overrides:

equals in class PartitionTimeline

hashCode

@Generated(value="lombok")
public int hashCode()

Overrides:

hashCode in class PartitionTimeline

toString

@Generated(value="lombok")
public String toString()

Overrides:

toString in class PartitionTimeline