com.gpudb.protocol

Class ClearStatisticsRequest

java.lang.Object

com.gpudb.protocol.ClearStatisticsRequest

All Implemented Interfaces:

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

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

A set of parameters for GPUdb.clearStatistics(ClearStatisticsRequest).

Clears statistics (cardinality, mean value, etc.) for a column in a specified table.

Constructor Summary

Constructors

Constructor and Description
ClearStatisticsRequest() Constructs a ClearStatisticsRequest object with default parameters.
ClearStatisticsRequest(String tableName, String columnName, Map<String,String> options) Constructs a ClearStatisticsRequest 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.
String	getColumnName()
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.
ClearStatisticsRequest	setColumnName(String columnName)
ClearStatisticsRequest	setOptions(Map<String,String> options)
ClearStatisticsRequest	setTableName(String tableName)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ClearStatisticsRequest

public ClearStatisticsRequest()

Constructs a ClearStatisticsRequest object with default parameters.

ClearStatisticsRequest

public ClearStatisticsRequest(String tableName,
                              String columnName,
                              Map<String,String> options)

Constructs a ClearStatisticsRequest object with the specified parameters.

Parameters:

tableName - Name of a table. Must be an existing table. The default value is ''.

columnName - Name of the column in tableName for which to clear statistics. The column must be from an existing table. An empty string clears statistics for all columns in the table. The default value is ''.

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. The default value is ''.

setTableName

public ClearStatisticsRequest setTableName(String tableName)

Parameters:

tableName - Name of a table. Must be an existing table. The default value is ''.

Returns:

this to mimic the builder pattern.

getColumnName

public String getColumnName()

Returns:

Name of the column in tableName for which to clear statistics. The column must be from an existing table. An empty string clears statistics for all columns in the table. The default value is ''.

setColumnName

public ClearStatisticsRequest setColumnName(String columnName)

Parameters:

columnName - Name of the column in tableName for which to clear statistics. The column must be from an existing table. An empty string clears statistics for all columns in the table. The default value is ''.

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 ClearStatisticsRequest 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