com.gpudb.protocol

Class CollectStatisticsRequest

java.lang.Object

com.gpudb.protocol.CollectStatisticsRequest

All Implemented Interfaces:

org.apache.avro.generic.GenericContainer, org.apache.avro.generic.IndexedRecord

public class CollectStatisticsRequest
extends Object
implements org.apache.avro.generic.IndexedRecord

A set of parameters for GPUdb.collectStatistics(CollectStatisticsRequest).

Collect statistics for a column(s) in a specified table.

Constructor Summary

Constructors

Constructor and Description
CollectStatisticsRequest() Constructs a CollectStatisticsRequest object with default parameters.
CollectStatisticsRequest(String tableName, List<String> columnNames, Map<String,String> options) Constructs a CollectStatisticsRequest object with the specified parameters.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
Object	get(int index) This method supports the Avro framework and is not intended to be called directly by the user.
static org.apache.avro.Schema	getClassSchema() This method supports the Avro framework and is not intended to be called directly by the user.
List<String>	getColumnNames()
Map<String,String>	getOptions()
org.apache.avro.Schema	getSchema() This method supports the Avro framework and is not intended to be called directly by the user.
String	getTableName()
int	hashCode()
void	put(int index, Object value) This method supports the Avro framework and is not intended to be called directly by the user.
CollectStatisticsRequest	setColumnNames(List<String> columnNames)
CollectStatisticsRequest	setOptions(Map<String,String> options)
CollectStatisticsRequest	setTableName(String tableName)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

CollectStatisticsRequest

public CollectStatisticsRequest()

Constructs a CollectStatisticsRequest object with default parameters.

CollectStatisticsRequest

public CollectStatisticsRequest(String tableName,
                                List<String> columnNames,
                                Map<String,String> options)

Constructs a CollectStatisticsRequest object with the specified parameters.

Parameters:

tableName - Name of a table. Must be an existing table.

columnNames - List of one or more column names in tableName for which to collect statistics (cardinality, mean value, etc.).

options - Optional parameters. The default value is an empty Map.

Method Detail

getClassSchema

public static org.apache.avro.Schema getClassSchema()

This method supports the Avro framework and is not intended to be called directly by the user.

Returns:

the schema for the class.

getTableName

public String getTableName()

Returns:

Name of a table. Must be an existing table.

setTableName

public CollectStatisticsRequest setTableName(String tableName)

Parameters:

tableName - Name of a table. Must be an existing table.

Returns:

this to mimic the builder pattern.

getColumnNames

public List<String> getColumnNames()

Returns:

List of one or more column names in tableName for which to collect statistics (cardinality, mean value, etc.).

setColumnNames

public CollectStatisticsRequest setColumnNames(List<String> columnNames)

Parameters:

columnNames - List of one or more column names in tableName for which to collect statistics (cardinality, mean value, etc.).

Returns:

this to mimic the builder pattern.

getOptions

public Map<String,String> getOptions()

Returns:

Optional parameters. The default value is an empty Map.

setOptions

public CollectStatisticsRequest setOptions(Map<String,String> options)

Parameters:

options - Optional parameters. The default value is an empty Map.

Returns:

this to mimic the builder pattern.

getSchema

public org.apache.avro.Schema getSchema()

This method supports the Avro framework and is not intended to be called directly by the user.

Specified by:

getSchema in interface org.apache.avro.generic.GenericContainer

Returns:

the schema object describing this class.

get

public Object get(int index)

This method supports the Avro framework and is not intended to be called directly by the user.

Specified by:

get in interface org.apache.avro.generic.IndexedRecord

Parameters:

index - the position of the field to get

Returns:

value of the field with the given index.

Throws:

IndexOutOfBoundsException

put

public void put(int index,
                Object value)

This method supports the Avro framework and is not intended to be called directly by the user.

Specified by:

put in interface org.apache.avro.generic.IndexedRecord

Parameters:

index - the position of the field to set

value - the value to set

Throws:

IndexOutOfBoundsException

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object