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org.apache.lens.cube.metadata
Class CubeFactTable

java.lang.Object
  org.apache.lens.cube.metadata.AbstractCubeTable
      org.apache.lens.cube.metadata.CubeFactTable

All Implemented Interfaces:

Named

public final class CubeFactTable
extends AbstractCubeTable

Field Summary

Fields inherited from class org.apache.lens.cube.metadata.AbstractCubeTable

LOG

Constructor Summary

CubeFactTable(String cubeName, String factName, List<org.apache.hadoop.hive.metastore.api.FieldSchema> columns, Map<String,Set<UpdatePeriod>> storageUpdatePeriods)

CubeFactTable(String cubeName, String factName, List<org.apache.hadoop.hive.metastore.api.FieldSchema> columns, Map<String,Set<UpdatePeriod>> storageUpdatePeriods, double weight)

CubeFactTable(String cubeName, String factName, List<org.apache.hadoop.hive.metastore.api.FieldSchema> columns, Map<String,Set<UpdatePeriod>> storageUpdatePeriods, double weight, Map<String,String> properties)

CubeFactTable(org.apache.hadoop.hive.ql.metadata.Table hiveTable)

Method Summary

void	addColumns(Collection<org.apache.hadoop.hive.metastore.api.FieldSchema> columns) Adds or alters the columns passed
void	addUpdatePeriod(String storage, UpdatePeriod period) Add update period to storage
void	alterColumn(org.apache.hadoop.hive.metastore.api.FieldSchema column) Alters the column if already existing or just adds it if it is new column
void	alterCubeName(String cubeName) Alter the cubeName to which this fact belongs
void	alterStorage(String storage, Set<UpdatePeriod> updatePeriods) Alter a storage with specified update periods
boolean	equals(Object obj)
String	getCubeName()
List<String>	getPartitions(Date fromDate, Date toDate, UpdatePeriod interval) Get partition value strings for given range, for the specified updateInterval
Set<String>	getStorages()
CubeTableType	getTableType()
Map<String,Set<UpdatePeriod>>	getUpdatePeriods()
List<String>	getValidColumns() Return valid columns of the fact, which can be specified by the property MetastoreUtil.getValidColumnsKey(getName())
boolean	isAggregated()
static UpdatePeriod	maxIntervalInRange(Date from, Date to, Set<UpdatePeriod> updatePeriods) Get the max update period for the given range and available update periods
void	removeUpdatePeriod(String storage, UpdatePeriod period) Remove update period from storage
void	setAggregated(boolean isAggregated)

Methods inherited from class org.apache.lens.cube.metadata.AbstractCubeTable

addProperties, alterWeight, getAllFieldNames, getColumns, getName, getProperties, getWeight, hashCode, removeProperty, toString, weight

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

CubeFactTable

public CubeFactTable(org.apache.hadoop.hive.ql.metadata.Table hiveTable)

CubeFactTable

public CubeFactTable(String cubeName,
                     String factName,
                     List<org.apache.hadoop.hive.metastore.api.FieldSchema> columns,
                     Map<String,Set<UpdatePeriod>> storageUpdatePeriods)

CubeFactTable

public CubeFactTable(String cubeName,
                     String factName,
                     List<org.apache.hadoop.hive.metastore.api.FieldSchema> columns,
                     Map<String,Set<UpdatePeriod>> storageUpdatePeriods,
                     double weight)

CubeFactTable

public CubeFactTable(String cubeName,
                     String factName,
                     List<org.apache.hadoop.hive.metastore.api.FieldSchema> columns,
                     Map<String,Set<UpdatePeriod>> storageUpdatePeriods,
                     double weight,
                     Map<String,String> properties)

Method Detail

getUpdatePeriods

public Map<String,Set<UpdatePeriod>> getUpdatePeriods()

equals

public boolean equals(Object obj)

Overrides:

equals in class AbstractCubeTable

getTableType

public CubeTableType getTableType()

Specified by:

getTableType in class AbstractCubeTable

getPartitions

public List<String> getPartitions(Date fromDate,
                                  Date toDate,
                                  UpdatePeriod interval)

Get partition value strings for given range, for the specified updateInterval

Parameters:

fromDate -

toDate -

interval -

Returns:

maxIntervalInRange

public static UpdatePeriod maxIntervalInRange(Date from,
                                              Date to,
                                              Set<UpdatePeriod> updatePeriods)

Get the max update period for the given range and available update periods

Parameters:

from -

to -

updatePeriods -

Returns:

getStorages

public Set<String> getStorages()

Specified by:

getStorages in class AbstractCubeTable

getCubeName

public String getCubeName()

getValidColumns

public List<String> getValidColumns()

Return valid columns of the fact, which can be specified by the property MetastoreUtil.getValidColumnsKey(getName())

Returns:

addUpdatePeriod

public void addUpdatePeriod(String storage,
                            UpdatePeriod period)

Add update period to storage

Parameters:

storage -

period -

removeUpdatePeriod

public void removeUpdatePeriod(String storage,
                               UpdatePeriod period)

Remove update period from storage

Parameters:

storage -

period -

alterStorage

public void alterStorage(String storage,
                         Set<UpdatePeriod> updatePeriods)
                  throws org.apache.hadoop.hive.ql.metadata.HiveException

Alter a storage with specified update periods

Parameters:

storage -

updatePeriods -

Throws:

org.apache.hadoop.hive.ql.metadata.HiveException

alterColumn

public void alterColumn(org.apache.hadoop.hive.metastore.api.FieldSchema column)
                 throws org.apache.hadoop.hive.ql.metadata.HiveException

Description copied from class: AbstractCubeTable

Alters the column if already existing or just adds it if it is new column

Throws:

org.apache.hadoop.hive.ql.metadata.HiveException

addColumns

public void addColumns(Collection<org.apache.hadoop.hive.metastore.api.FieldSchema> columns)
                throws org.apache.hadoop.hive.ql.metadata.HiveException

Description copied from class: AbstractCubeTable

Adds or alters the columns passed

Throws:

org.apache.hadoop.hive.ql.metadata.HiveException

alterCubeName

public void alterCubeName(String cubeName)

Alter the cubeName to which this fact belongs

Parameters:

cubeName -

isAggregated

public boolean isAggregated()

setAggregated

public void setAggregated(boolean isAggregated)