com.gpudb.protocol

Class CreateTableMonitorRequest

java.lang.Object

com.gpudb.protocol.CreateTableMonitorRequest

All Implemented Interfaces:

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

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

A set of parameters for GPUdb.createTableMonitor(CreateTableMonitorRequest).

Creates a monitor that watches for new records inserted into a particular table (identified by tableName) and forwards copies to subscribers via ZMQ. After this call completes, subscribe to the returned topicId on the ZMQ table monitor port (default 9002). Each time an insert operation on the table completes, a multipart message is published for that topic; the first part contains only the topic ID, and each subsequent part contains one binary-encoded Avro object that was inserted. The monitor will continue to run (regardless of whether or not there are any subscribers) until deactivated with GPUdb.clearTableMonitor(ClearTableMonitorRequest).

Constructor Summary

Constructors

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

Methods inherited from class java.lang.Object

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

Constructor Detail

CreateTableMonitorRequest

public CreateTableMonitorRequest()

Constructs a CreateTableMonitorRequest object with default parameters.

CreateTableMonitorRequest

public CreateTableMonitorRequest(String tableName,
                                 Map<String,String> options)

Constructs a CreateTableMonitorRequest object with the specified parameters.

Parameters:

tableName - Name of the table to monitor. Must not refer to a collection.

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 the table to monitor. Must not refer to a collection.

setTableName

public CreateTableMonitorRequest setTableName(String tableName)

Parameters:

tableName - Name of the table to monitor. Must not refer to a collection.

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 CreateTableMonitorRequest 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