com.yahoo.bullet.query.tablefunctions

Class TableFunction

java.lang.Object

com.yahoo.bullet.query.tablefunctions.TableFunction

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

LateralView, OuterableTableFunction

public abstract class TableFunction
extends Object
implements Serializable

Table functions are used in Bullet queries to generate virtual records from incoming Bullet records. The generated records are then fed to the rest of the query (filter, projection, aggregation, etc.) Currently, the supported table function types are Lateral View and Explode. Look at TableFunctor to see how table functions are applied in the Querier.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected TableFunctionType	type

Constructor Summary

Constructors

Constructor and Description
TableFunction()

Method Summary

Modifier and Type	Method and Description
abstract TableFunctor	getTableFunctor() Gets a new instance of a table functor for this table function.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

type

protected final TableFunctionType type

Constructor Detail

TableFunction

public TableFunction()

Method Detail

getTableFunctor

public abstract TableFunctor getTableFunctor()

Gets a new instance of a table functor for this table function.

Returns:

A newly-constructed table functor for this table function.