Package com.gpudb.protocol

Class ClearTablesRequest

java.lang.Object

com.gpudb.protocol.ClearTablesRequest

All Implemented Interfaces:

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

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

A set of parameters for GPUdb.clearTables.

Clears (drops) tables in the database cluster. The operation is synchronous meaning that the tables will be cleared before the function returns. The response payload returns the status of the operation for each table requested.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ClearTablesRequest.Options	A set of string constants for the ClearTablesRequest parameter options.

Constructor Summary

Constructors

Constructor	Description
ClearTablesRequest()	Constructs a ClearTablesRequest object with default parameters.
ClearTablesRequest(List<String> tableNames, Map<String,String> options)	Constructs a ClearTablesRequest object with the specified parameters.

Method Summary

Modifier and Type	Method	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.
Map<String,String>	getOptions()	Optional parameters.
org.apache.avro.Schema	getSchema()	This method supports the Avro framework and is not intended to be called directly by the user.
List<String>	getTableNames()	Names of the tables to be cleared, in [schema_name.]table_name format, using standard name resolution rules.
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.
ClearTablesRequest	setOptions(Map<String,String> options)	Optional parameters.
ClearTablesRequest	setTableNames(List<String> tableNames)	Names of the tables to be cleared, in [schema_name.]table_name format, using standard name resolution rules.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ClearTablesRequest

public ClearTablesRequest()

Constructs a ClearTablesRequest object with default parameters.

ClearTablesRequest

public ClearTablesRequest(List<String> tableNames,
                          Map<String,String> options)

Constructs a ClearTablesRequest object with the specified parameters.

Parameters:

tableNames - Names of the tables to be cleared, in [schema_name.]table_name format, using standard name resolution rules. Must be existing tables. Empty list clears all available tables, though this behavior is be prevented by default via gpudb.conf parameter 'disable_clear_all'. The default value is an empty List.

options - Optional parameters.

• NO_ERROR_IF_NOT_EXISTS: If TRUE and if a table specified in tableNames does not exist no error is returned. If FALSE and if a table specified in tableNames does not exist then an error is returned. Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.

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.

getTableNames

public List<String> getTableNames()

Names of the tables to be cleared, in [schema_name.]table_name format, using standard name resolution rules. Must be existing tables. Empty list clears all available tables, though this behavior is be prevented by default via gpudb.conf parameter 'disable_clear_all'. The default value is an empty List.

Returns:

The current value of tableNames.

setTableNames

public ClearTablesRequest setTableNames(List<String> tableNames)

Names of the tables to be cleared, in [schema_name.]table_name format, using standard name resolution rules. Must be existing tables. Empty list clears all available tables, though this behavior is be prevented by default via gpudb.conf parameter 'disable_clear_all'. The default value is an empty List.

Parameters:

tableNames - The new value for tableNames.

Returns:

this to mimic the builder pattern.

getOptions

public Map<String,String> getOptions()

Optional parameters.

• NO_ERROR_IF_NOT_EXISTS: If TRUE and if a table specified in tableNames does not exist no error is returned. If FALSE and if a table specified in tableNames does not exist then an error is returned. Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.

The default value is an empty Map.

Returns:

The current value of options.

setOptions

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

Optional parameters.

• NO_ERROR_IF_NOT_EXISTS: If TRUE and if a table specified in tableNames does not exist no error is returned. If FALSE and if a table specified in tableNames does not exist then an error is returned. Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.

The default value is an empty Map.

Parameters:

options - The new value for options.

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