org.openanzo.server.repository
Class Tracker

java.lang.Object
  org.openanzo.server.repository.Tracker

All Implemented Interfaces:

INotificationSelector, ITracker

public class Tracker
extends java.lang.Object
implements ITracker

Basic implementation of ITracker in order to pass trackers to replicate call on server

Author:

Matthew Roy ( mroy@cambridgesemantics.com )

Constructor Summary

Tracker(org.openrdf.model.Resource subj, org.openrdf.model.URI prop, org.openrdf.model.Value obj, org.openrdf.model.Resource context)
New Tracker

Method Summary

boolean	equals(java.lang.Object obj) This is here simply to remind you to implement equals and hashCode when implementing this interface.
org.openrdf.model.URI	getContext() Get the Context resource for tracker
java.lang.String	getMessageSelector() Get the JMS message selector corresponding to this INotificationSelector's definition
org.openrdf.model.Value	getObject() Get the Object value for the tracker
org.openrdf.model.URI	getPredicate() Get the Predicate URI for the tracker
java.lang.String	getQueryString() Get the Sparql query used in order to retrieve this queries matching statements from the dataset
org.openrdf.model.Resource	getSubject() Get the Subject resource for the tracker
boolean	matchNamedGraphUri(org.openrdf.model.URI namedGraphUri) Determine if a change to the given NamedGraph matches this tracker.
boolean	matchStatement(org.openrdf.model.Statement statement) Determine if the given statement matches this tracker.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.openanzo.services.trackers.ITracker

hashCode

Constructor Detail

Tracker

public Tracker(org.openrdf.model.Resource subj,
               org.openrdf.model.URI prop,
               org.openrdf.model.Value obj,
               org.openrdf.model.Resource context)

New Tracker

Parameters:

subj - subject of tracker

prop - property of tracker

obj - object of tracker

context - context of tracker

Method Detail

getContext

public org.openrdf.model.URI getContext()

Description copied from interface: ITracker

Get the Context resource for tracker

Specified by:

getContext in interface ITracker

Returns:

the Context resource for tracker

getSubject

public org.openrdf.model.Resource getSubject()

Description copied from interface: ITracker

Get the Subject resource for the tracker

Specified by:

getSubject in interface ITracker

Returns:

the Subject resource for the tracker

getPredicate

public org.openrdf.model.URI getPredicate()

Description copied from interface: ITracker

Get the Predicate URI for the tracker

Specified by:

getPredicate in interface ITracker

Returns:

the Predicate URI for the tracker

getObject

public org.openrdf.model.Value getObject()

Description copied from interface: ITracker

Get the Object value for the tracker

Specified by:

getObject in interface ITracker

Returns:

the Object value for the tracker

matchNamedGraphUri

public boolean matchNamedGraphUri(org.openrdf.model.URI namedGraphUri)

Description copied from interface: ITracker

Determine if a change to the given NamedGraph matches this tracker.

Specified by:

matchNamedGraphUri in interface ITracker

Parameters:

namedGraphUri - Uri of namedGraph to compare.

Returns:

true if a change to the given NamedGraph matches this tracker.

matchStatement

public boolean matchStatement(org.openrdf.model.Statement statement)

Description copied from interface: ITracker

Determine if the given statement matches this tracker.

Specified by:

matchStatement in interface ITracker

Parameters:

statement - statement to compare

Returns:

true if the given statement matches this tracker.

getMessageSelector

public java.lang.String getMessageSelector()

Description copied from interface: INotificationSelector

Get the JMS message selector corresponding to this INotificationSelector's definition

Specified by:

getMessageSelector in interface INotificationSelector

Returns:

the JMS message selector corresponding to this INotificationSelector's definition

getQueryString

public java.lang.String getQueryString()

Description copied from interface: ITracker

Get the Sparql query used in order to retrieve this queries matching statements from the dataset

Specified by:

getQueryString in interface ITracker

Returns:

the Sparql query used in order to retrieve this queries matching statements from the dataset

equals

public boolean equals(java.lang.Object obj)

Description copied from interface: ITracker

This is here simply to remind you to implement equals and hashCode when implementing this interface. Two trackers are equal if they yield the same result when calling matchStatement for all possible statements.

Specified by:

equals in interface ITracker

Overrides:

equals in class java.lang.Object

Parameters:

obj - object to determine equality

Returns:

true if two trackers yield the same result when calling matchStatement for all possible statements