com.gpudb.protocol

Class FilterByRangeRequest

java.lang.Object

com.gpudb.protocol.FilterByRangeRequest

All Implemented Interfaces:

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

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

A set of parameters for GPUdb.filterByRange(FilterByRangeRequest).

Calculates which objects from a table have a column that is within the given bounds. An object from the table identified by tableName is added to the view viewName if its column is within [lowerBound, upperBound] (inclusive). The operation is synchronous. The response provides a count of the number of objects which passed the bound filter. Although this functionality can also be accomplished with the standard filter function, it is more efficient.

For track objects, the count reflects how many points fall within the given bounds (which may not include all the track points of any given track).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FilterByRangeRequest.Options Optional parameters.

Constructor Summary

Constructors

Constructor and Description
FilterByRangeRequest() Constructs a FilterByRangeRequest object with default parameters.
FilterByRangeRequest(String tableName, String viewName, String columnName, double lowerBound, double upperBound, Map<String,String> options) Constructs a FilterByRangeRequest 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()
double	getLowerBound()
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()
double	getUpperBound()
String	getViewName()
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.
FilterByRangeRequest	setColumnName(String columnName)
FilterByRangeRequest	setLowerBound(double lowerBound)
FilterByRangeRequest	setOptions(Map<String,String> options)
FilterByRangeRequest	setTableName(String tableName)
FilterByRangeRequest	setUpperBound(double upperBound)
FilterByRangeRequest	setViewName(String viewName)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterByRangeRequest

public FilterByRangeRequest()

Constructs a FilterByRangeRequest object with default parameters.

FilterByRangeRequest

public FilterByRangeRequest(String tableName,
                            String viewName,
                            String columnName,
                            double lowerBound,
                            double upperBound,
                            Map<String,String> options)

Constructs a FilterByRangeRequest object with the specified parameters.

Parameters:

tableName - Name of the table on which the filter by range operation will be performed. Must be an existing table.

viewName - If provided, then this will be the name of the view containing the results. Has the same naming restrictions as tables. The default value is ''.

columnName - Name of a column on which the operation would be applied.

lowerBound - Value of the lower bound (inclusive).

upperBound - Value of the upper bound (inclusive).

options - Optional parameters.

• COLLECTION_NAME: Name of a collection which is to contain the newly created view. If the collection provided is non-existent, the collection will be automatically created. If empty, then the newly created view will be top-level.

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 on which the filter by range operation will be performed. Must be an existing table.

setTableName

public FilterByRangeRequest setTableName(String tableName)

Parameters:

tableName - Name of the table on which the filter by range operation will be performed. Must be an existing table.

Returns:

this to mimic the builder pattern.

getViewName

public String getViewName()

Returns:

If provided, then this will be the name of the view containing the results. Has the same naming restrictions as tables. The default value is ''.

setViewName

public FilterByRangeRequest setViewName(String viewName)

Parameters:

viewName - If provided, then this will be the name of the view containing the results. Has the same naming restrictions as tables. The default value is ''.

Returns:

this to mimic the builder pattern.

getColumnName

public String getColumnName()

Returns:

Name of a column on which the operation would be applied.

setColumnName

public FilterByRangeRequest setColumnName(String columnName)

Parameters:

columnName - Name of a column on which the operation would be applied.

Returns:

this to mimic the builder pattern.

getLowerBound

public double getLowerBound()

Returns:

Value of the lower bound (inclusive).

setLowerBound

public FilterByRangeRequest setLowerBound(double lowerBound)

Parameters:

lowerBound - Value of the lower bound (inclusive).

Returns:

this to mimic the builder pattern.

getUpperBound

public double getUpperBound()

Returns:

Value of the upper bound (inclusive).

setUpperBound

public FilterByRangeRequest setUpperBound(double upperBound)

Parameters:

upperBound - Value of the upper bound (inclusive).

Returns:

this to mimic the builder pattern.

getOptions

public Map<String,String> getOptions()

Returns:

Optional parameters.

• COLLECTION_NAME: Name of a collection which is to contain the newly created view. If the collection provided is non-existent, the collection will be automatically created. If empty, then the newly created view will be top-level.

The default value is an empty Map.

setOptions

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

Parameters:

options - Optional parameters.

• COLLECTION_NAME: Name of a collection which is to contain the newly created view. If the collection provided is non-existent, the collection will be automatically created. If empty, then the newly created view will be top-level.

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