com.gpudb.protocol

Class DropSchemaRequest

java.lang.Object

com.gpudb.protocol.DropSchemaRequest

All Implemented Interfaces:

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

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

A set of parameters for GPUdb.dropSchema.

Drops an existing SQL-style schema, specified in schemaName.

Nested Class Summary

Nested Classes

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

Constructor Summary

Constructors

Constructor and Description
DropSchemaRequest() Constructs a DropSchemaRequest object with default parameters.
DropSchemaRequest(String schemaName, Map<String,String> options) Constructs a DropSchemaRequest 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.
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.
String	getSchemaName() Name of the schema to be dropped.
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.
DropSchemaRequest	setOptions(Map<String,String> options) Optional parameters.
DropSchemaRequest	setSchemaName(String schemaName) Name of the schema to be dropped.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

DropSchemaRequest

public DropSchemaRequest()

Constructs a DropSchemaRequest object with default parameters.

DropSchemaRequest

public DropSchemaRequest(String schemaName,
                         Map<String,String> options)

Constructs a DropSchemaRequest object with the specified parameters.

Parameters:

schemaName - Name of the schema to be dropped. Must be an existing schema.

options - Optional parameters.

• NO_ERROR_IF_NOT_EXISTS: If TRUE and if the schema specified in schemaName does not exist, no error is returned. If FALSE and if the schema specified in schemaName does not exist, then an error is returned. Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.
• CASCADE: If TRUE, all tables within the schema will be dropped. If FALSE, the schema will be dropped only if empty. 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.

getSchemaName

public String getSchemaName()

Name of the schema to be dropped. Must be an existing schema.

Returns:

The current value of schemaName.

setSchemaName

public DropSchemaRequest setSchemaName(String schemaName)

Name of the schema to be dropped. Must be an existing schema.

Parameters:

schemaName - The new value for schemaName.

Returns:

this to mimic the builder pattern.

getOptions

public Map<String,String> getOptions()

Optional parameters.

• NO_ERROR_IF_NOT_EXISTS: If TRUE and if the schema specified in schemaName does not exist, no error is returned. If FALSE and if the schema specified in schemaName does not exist, then an error is returned. Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.
• CASCADE: If TRUE, all tables within the schema will be dropped. If FALSE, the schema will be dropped only if empty. Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.

The default value is an empty Map.

Returns:

The current value of options.

setOptions

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

Optional parameters.

• NO_ERROR_IF_NOT_EXISTS: If TRUE and if the schema specified in schemaName does not exist, no error is returned. If FALSE and if the schema specified in schemaName does not exist, then an error is returned. Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.
• CASCADE: If TRUE, all tables within the schema will be dropped. If FALSE, the schema will be dropped only if empty. 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