com.yahoo.bullet.querying.tablefunctors

Class OuterableTableFunctor

java.lang.Object

com.yahoo.bullet.querying.tablefunctors.TableFunctor

com.yahoo.bullet.querying.tablefunctors.OuterableTableFunctor

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ExplodeFunctor

public abstract class OuterableTableFunctor
extends TableFunctor

The OuterableTableFunctor class adds an outer option. When outer is specified and no records are generated, an empty record will be generated. Classes inheriting from this class must implement outerableApply(BulletRecord, BulletRecordProvider) and not TableFunctor.apply(BulletRecord, BulletRecordProvider).

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	outer

Constructor Summary

Constructors

Constructor and Description
OuterableTableFunctor()

Method Summary

Modifier and Type	Method and Description
List<com.yahoo.bullet.record.BulletRecord>	apply(com.yahoo.bullet.record.BulletRecord record, com.yahoo.bullet.record.BulletRecordProvider provider) Applies this table functor to the given BulletRecord.
protected abstract List<com.yahoo.bullet.record.BulletRecord>	outerableApply(com.yahoo.bullet.record.BulletRecord record, com.yahoo.bullet.record.BulletRecordProvider provider) Applies this table functor to the given BulletRecord.

Methods inherited from class java.lang.Object

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

Field Detail

outer

protected final boolean outer

Constructor Detail

OuterableTableFunctor

public OuterableTableFunctor()

Method Detail

apply

public List<com.yahoo.bullet.record.BulletRecord> apply(com.yahoo.bullet.record.BulletRecord record,
                                                        com.yahoo.bullet.record.BulletRecordProvider provider)

Description copied from class: TableFunctor

Applies this table functor to the given BulletRecord.

Specified by:

apply in class TableFunctor

Parameters:

record - The Bullet record to apply this table functor to.

provider - The provider used in generating new Bullet records.

Returns:

The generated list of records from applying this table functor to the given Bullet record.

outerableApply

protected abstract List<com.yahoo.bullet.record.BulletRecord> outerableApply(com.yahoo.bullet.record.BulletRecord record,
                                                                             com.yahoo.bullet.record.BulletRecordProvider provider)

Applies this table functor to the given BulletRecord. This method is called by the main apply(BulletRecord, BulletRecordProvider) method which will handle the outer option.

Parameters:

record - The Bullet record to apply this table functor to.

provider - The provider used in generating new Bullet records.

Returns:

The generated list of records from applying this table functor to the given Bullet record.