ChordIdentifierFactory

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com.ubermq.chord
Interface ChordIdentifierFactory

All Known Implementing Classes:: BoundedChordIdentifier.MyFactory

public interface ChordIdentifierFactory

Specifies a factory interface to construct chord identifiers in various ways.

Method Summary

ChordIdentifier createIdentifier(java.lang.Object o)
          Creates a chord identifier based on a Java object.

ChordIdentifier createRandomIdentifier()
          Generates a random chord identifier.

int getFingerTableSize()
          Returns the recommended size of the finger table.

ChordIdentifier getIdentifier(java.net.URI uri)
          Returns the identifier specified by a given URI.

Method Detail

createIdentifier

public ChordIdentifier createIdentifier(java.lang.Object o)

Creates a chord identifier based on a Java object. Most implementations will require that the object's hashCode method is well-defined, however this is not a strict requirement, particularly if a 32-bit hash space is not sufficient.

getIdentifier

public ChordIdentifier getIdentifier(java.net.URI uri)

Returns the identifier specified by a given URI. Generally the identifier will be contained in the path component of the URI, but this is ultimately implementation-specific.

createRandomIdentifier

public ChordIdentifier createRandomIdentifier()

Generates a random chord identifier.

getFingerTableSize

public int getFingerTableSize()

Returns the recommended size of the finger table. This should be a value that ensures O(log n) searches throughout the identifier space.