Package org.apache.hadoop.ipc

Interface IdentityProvider

All Known Implementing Classes:

UserIdentityProvider

@Private
public interface IdentityProvider

The IdentityProvider creates identities for each schedulable by extracting fields and returning an identity string. Implementers will be able to change how schedulers treat Schedulables.

Method Summary

Modifier and Type	Method	Description
java.lang.String	makeIdentity(Schedulable obj)	Return the string used for scheduling.

Method Detail

makeIdentity

java.lang.String makeIdentity(Schedulable obj)

Return the string used for scheduling.

Parameters:

obj - the schedulable to use.

Returns:

string identity, or null if no identity could be made.