org.apache.pig
Class LoadPushDown.RequiredFieldList

java.lang.Object
  org.apache.pig.LoadPushDown.RequiredFieldList

All Implemented Interfaces:

Serializable

Enclosing interface:

LoadPushDown

@InterfaceAudience.Public
@InterfaceStability.Evolving
public static class LoadPushDown.RequiredFieldList
extends Object
implements Serializable

List of fields that Pig knows to be required to executed a script.

See Also:

Serialized Form

Constructor Summary

LoadPushDown.RequiredFieldList()

LoadPushDown.RequiredFieldList(List<LoadPushDown.RequiredField> fields)
Set the list of required fields.

Method Summary

void	add(LoadPushDown.RequiredField rf) Add a field to the list of required fields.
List<LoadPushDown.RequiredField>	getFields() Geta ll required fields as a list.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

LoadPushDown.RequiredFieldList

public LoadPushDown.RequiredFieldList(List<LoadPushDown.RequiredField> fields)

Set the list of required fields.

Parameters:

fields -

LoadPushDown.RequiredFieldList

public LoadPushDown.RequiredFieldList()

Method Detail

getFields

public List<LoadPushDown.RequiredField> getFields()

Geta ll required fields as a list.

Returns:

the required fields - this will be null if all fields are required

toString

public String toString()

Overrides:

toString in class Object

add

public void add(LoadPushDown.RequiredField rf)

Add a field to the list of required fields.

Parameters:

rf - required field to add to the list.