com.hp.hpl.mesa.rdf.jena.rdb
Class DBIDInt

java.lang.Object
  |
  +--com.hp.hpl.mesa.rdf.jena.rdb.DBIDInt

All Implemented Interfaces:

IDBID

public class DBIDInt

extends java.lang.Object

implements IDBID

Interface for database identifiers. Most RDF entities (resources, literals, statements) have an associated database index. These are cached using RDB-specific variants of the jena "impl" classes. This can avoid some redundant database lookup.

This variant just uses integers allocated by the database driver as indices. This would be sufficient for databases up to 4x10^9 statements.

Version:

$Revision: 1.2 $ on $Date: 2001/11/26 18:20:08 $

Author:

Dave Reynolds

Constructor Summary

DBIDInt(int id)
constructor

DBIDInt(java.lang.Integer id)
constructor

Method Summary

boolean	equals(java.lang.Object obj) Equality is based on the underlying object
java.lang.Object	getID() get the identifier as an Integer, fits calling signature of our generic sql interface.
int	getIntID() get the identifier as a plain int
int	hashCode() Hash is based on the underlying object

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DBIDInt

public DBIDInt(int id)

constructor

DBIDInt

public DBIDInt(java.lang.Integer id)

constructor

Method Detail

getID

public java.lang.Object getID()

get the identifier as an Integer, fits calling signature of our generic sql interface.

Specified by:

getID in interface IDBID

getIntID

public int getIntID()

get the identifier as a plain int

hashCode

public int hashCode()

Hash is based on the underlying object

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Equality is based on the underlying object

Overrides:

equals in class java.lang.Object