Package com.gpudb.protocol

Class FilterByRadiusRequest

java.lang.Object

com.gpudb.protocol.FilterByRadiusRequest

All Implemented Interfaces:

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

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

A set of parameters for GPUdb.filterByRadius.

Calculates which objects from a table lie within a circle with the given radius and center point (i.e. circular NAI). The operation is synchronous, meaning that a response will not be returned until all the objects are fully available. The response payload provides the count of the resulting set. A new resultant set (view) which satisfies the input circular NAI restriction specification is also created if a viewName is passed in as part of the request.

For track data, all track points that lie within the circle plus one point on either side of the circle (if the track goes beyond the circle) will be included in the result.

Nested Class Summary

Nested Classes

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

Constructor Summary

Constructors

Constructor	Description
FilterByRadiusRequest()	Constructs a FilterByRadiusRequest object with default parameters.
FilterByRadiusRequest(String tableName, String viewName, String xColumnName, double xCenter, String yColumnName, double yCenter, double radius, Map<String,String> options)	Constructs a FilterByRadiusRequest 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.
double	getRadius()	The radius of the circle within which the search will be performed.
org.apache.avro.Schema	getSchema()	This method supports the Avro framework and is not intended to be called directly by the user.
String	getTableName()	Name of the table on which the filter by radius operation will be performed, in [schema_name.]table_name format, using standard name resolution rules.
String	getViewName()	If provided, then this will be the name of the view containing the results, in [schema_name.]view_name format, using standard name resolution rules and meeting table naming criteria.
double	getXCenter()	Value of the longitude of the center.
String	getXColumnName()	Name of the column to be used for the x-coordinate (the longitude) of the center.
double	getYCenter()	Value of the latitude of the center.
String	getYColumnName()	Name of the column to be used for the y-coordinate-the latitude-of the center.
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.
FilterByRadiusRequest	setOptions(Map<String,String> options)	Optional parameters.
FilterByRadiusRequest	setRadius(double radius)	The radius of the circle within which the search will be performed.
FilterByRadiusRequest	setTableName(String tableName)	Name of the table on which the filter by radius operation will be performed, in [schema_name.]table_name format, using standard name resolution rules.
FilterByRadiusRequest	setViewName(String viewName)	If provided, then this will be the name of the view containing the results, in [schema_name.]view_name format, using standard name resolution rules and meeting table naming criteria.
FilterByRadiusRequest	setXCenter(double xCenter)	Value of the longitude of the center.
FilterByRadiusRequest	setXColumnName(String xColumnName)	Name of the column to be used for the x-coordinate (the longitude) of the center.
FilterByRadiusRequest	setYCenter(double yCenter)	Value of the latitude of the center.
FilterByRadiusRequest	setYColumnName(String yColumnName)	Name of the column to be used for the y-coordinate-the latitude-of the center.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterByRadiusRequest

public FilterByRadiusRequest()

Constructs a FilterByRadiusRequest object with default parameters.

FilterByRadiusRequest

public FilterByRadiusRequest(String tableName,
                             String viewName,
                             String xColumnName,
                             double xCenter,
                             String yColumnName,
                             double yCenter,
                             double radius,
                             Map<String,String> options)

Constructs a FilterByRadiusRequest object with the specified parameters.

Parameters:

tableName - Name of the table on which the filter by radius operation will be performed, in [schema_name.]table_name format, using standard name resolution rules. Must be an existing table.

viewName - If provided, then this will be the name of the view containing the results, in [schema_name.]view_name format, using standard name resolution rules and meeting table naming criteria. Must not be an already existing table or view. The default value is ''.

xColumnName - Name of the column to be used for the x-coordinate (the longitude) of the center.

xCenter - Value of the longitude of the center. Must be within [-180.0, 180.0]. The minimum allowed value is -180. The maximum allowed value is 180.

yColumnName - Name of the column to be used for the y-coordinate-the latitude-of the center.

yCenter - Value of the latitude of the center. Must be within [-90.0, 90.0]. The minimum allowed value is -90. The maximum allowed value is 90.

radius - The radius of the circle within which the search will be performed. Must be a non-zero positive value. It is in meters; so, for example, a value of '42000' means 42 km. The minimum allowed value is 0. The maximum allowed value is MAX_INT.

options - Optional parameters.

• CREATE_TEMP_TABLE: If TRUE, a unique temporary table name will be generated in the sys_temp schema and used in place of viewName. This is always allowed even if the caller does not have permission to create tables. The generated name is returned in QUALIFIED_VIEW_NAME. Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.
• COLLECTION_NAME: [DEPRECATED--please specify the containing schema for the view as part of viewName and use GPUdb.createSchema to create the schema if non-existent] Name of a schema which is to contain the newly created view. If the schema is non-existent, it will be automatically created.

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()

Name of the table on which the filter by radius operation will be performed, in [schema_name.]table_name format, using standard name resolution rules. Must be an existing table.

Returns:

The current value of tableName.

setTableName

public FilterByRadiusRequest setTableName(String tableName)

Name of the table on which the filter by radius operation will be performed, in [schema_name.]table_name format, using standard name resolution rules. Must be an existing table.

Parameters:

tableName - The new value for tableName.

Returns:

this to mimic the builder pattern.

getViewName

public String getViewName()

If provided, then this will be the name of the view containing the results, in [schema_name.]view_name format, using standard name resolution rules and meeting table naming criteria. Must not be an already existing table or view. The default value is ''.

Returns:

The current value of viewName.

setViewName

public FilterByRadiusRequest setViewName(String viewName)

If provided, then this will be the name of the view containing the results, in [schema_name.]view_name format, using standard name resolution rules and meeting table naming criteria. Must not be an already existing table or view. The default value is ''.

Parameters:

viewName - The new value for viewName.

Returns:

this to mimic the builder pattern.

getXColumnName

public String getXColumnName()

Name of the column to be used for the x-coordinate (the longitude) of the center.

Returns:

The current value of xColumnName.

setXColumnName

public FilterByRadiusRequest setXColumnName(String xColumnName)

Name of the column to be used for the x-coordinate (the longitude) of the center.

Parameters:

xColumnName - The new value for xColumnName.

Returns:

this to mimic the builder pattern.

getXCenter

public double getXCenter()

Value of the longitude of the center. Must be within [-180.0, 180.0]. The minimum allowed value is -180. The maximum allowed value is 180.

Returns:

The current value of xCenter.

setXCenter

public FilterByRadiusRequest setXCenter(double xCenter)

Value of the longitude of the center. Must be within [-180.0, 180.0]. The minimum allowed value is -180. The maximum allowed value is 180.

Parameters:

xCenter - The new value for xCenter.

Returns:

this to mimic the builder pattern.

getYColumnName

public String getYColumnName()

Name of the column to be used for the y-coordinate-the latitude-of the center.

Returns:

The current value of yColumnName.

setYColumnName

public FilterByRadiusRequest setYColumnName(String yColumnName)

Name of the column to be used for the y-coordinate-the latitude-of the center.

Parameters:

yColumnName - The new value for yColumnName.

Returns:

this to mimic the builder pattern.

getYCenter

public double getYCenter()

Value of the latitude of the center. Must be within [-90.0, 90.0]. The minimum allowed value is -90. The maximum allowed value is 90.

Returns:

The current value of yCenter.

setYCenter

public FilterByRadiusRequest setYCenter(double yCenter)

Value of the latitude of the center. Must be within [-90.0, 90.0]. The minimum allowed value is -90. The maximum allowed value is 90.

Parameters:

yCenter - The new value for yCenter.

Returns:

this to mimic the builder pattern.

getRadius

public double getRadius()

The radius of the circle within which the search will be performed. Must be a non-zero positive value. It is in meters; so, for example, a value of '42000' means 42 km. The minimum allowed value is 0. The maximum allowed value is MAX_INT.

Returns:

The current value of radius.

setRadius

public FilterByRadiusRequest setRadius(double radius)

The radius of the circle within which the search will be performed. Must be a non-zero positive value. It is in meters; so, for example, a value of '42000' means 42 km. The minimum allowed value is 0. The maximum allowed value is MAX_INT.

Parameters:

radius - The new value for radius.

Returns:

this to mimic the builder pattern.

getOptions

public Map<String,String> getOptions()

Optional parameters.

• CREATE_TEMP_TABLE: If TRUE, a unique temporary table name will be generated in the sys_temp schema and used in place of viewName. This is always allowed even if the caller does not have permission to create tables. The generated name is returned in QUALIFIED_VIEW_NAME. Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.
• COLLECTION_NAME: [DEPRECATED--please specify the containing schema for the view as part of viewName and use GPUdb.createSchema to create the schema if non-existent] Name of a schema which is to contain the newly created view. If the schema is non-existent, it will be automatically created.

The default value is an empty Map.

Returns:

The current value of options.

setOptions

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

Optional parameters.

• CREATE_TEMP_TABLE: If TRUE, a unique temporary table name will be generated in the sys_temp schema and used in place of viewName. This is always allowed even if the caller does not have permission to create tables. The generated name is returned in QUALIFIED_VIEW_NAME. Supported values:
  • TRUE
  • FALSE
  The default value is FALSE.
• COLLECTION_NAME: [DEPRECATED--please specify the containing schema for the view as part of viewName and use GPUdb.createSchema to create the schema if non-existent] Name of a schema which is to contain the newly created view. If the schema is non-existent, it will be automatically created.

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