nl.cwi.sen1.visbase.rstorecontainer
Class RStoreTracker

java.lang.Object
  nl.cwi.sen1.visbase.rstorecontainer.RStoreTracker

public class RStoreTracker
extends java.lang.Object

Keeps track of the Rtuples associated to a RStore. Manages the identifiers.

Field Summary

private java.util.Map<java.lang.String,java.lang.Integer>	m_identifiedRTuplesMap
private java.util.Map<java.lang.Integer,nl.cwi.sen1.relationstores.types.RTuple>	m_loadedRTuplesMap
private static org.apache.commons.logging.Log	m_log
private nl.cwi.sen1.relationstores.types.RStore	m_RStore

Constructor Summary

RStoreTracker(nl.cwi.sen1.relationstores.types.RStore rStore)
Default Constructor.

Method Summary

static java.lang.String	createIdentifierForRTuple(nl.cwi.sen1.relationstores.types.RTuple rTuple) Used to create a textual identifier for a RTuple
static boolean	diffRtuples(nl.cwi.sen1.relationstores.types.RTuple existingRTuple, nl.cwi.sen1.relationstores.types.RTuple newRTuple) Checks if RTuples differ from eachother
FactInfoList	getFactInfoFromRStore() Creates a list of FactInfo objects containing the descriptive data from the found facts (using the RTuples in the RStore).
nl.cwi.sen1.relationstores.types.RStore	getRStore() Simple getter
nl.cwi.sen1.relationstores.types.RTuple	getRTuple(int id) Simple getter
protected void	registerNewRTuple(nl.cwi.sen1.relationstores.types.RTuple rTuple) Registers
java.util.List<java.lang.Integer>	update(nl.cwi.sen1.relationstores.types.RStore updatedRStore) Updates this tracker with new, deleted or updated facts
private void	updateRStore(nl.cwi.sen1.relationstores.types.RStore rStore) Updates this tracker with the given RStore

Methods inherited from class java.lang.Object

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

Field Detail

m_log

private static final org.apache.commons.logging.Log m_log

m_RStore

private nl.cwi.sen1.relationstores.types.RStore m_RStore

m_loadedRTuplesMap

private java.util.Map<java.lang.Integer,nl.cwi.sen1.relationstores.types.RTuple> m_loadedRTuplesMap

m_identifiedRTuplesMap

private java.util.Map<java.lang.String,java.lang.Integer> m_identifiedRTuplesMap

Constructor Detail

RStoreTracker

public RStoreTracker(nl.cwi.sen1.relationstores.types.RStore rStore)

Default Constructor. Reads all RTuple (facts) from the given RStore

Parameters:

rStore -

Throws:

java.lang.RuntimeException - if rStore input is null

Method Detail

updateRStore

private void updateRStore(nl.cwi.sen1.relationstores.types.RStore rStore)

Updates this tracker with the given RStore

Parameters:

rStore -

update

public java.util.List<java.lang.Integer> update(nl.cwi.sen1.relationstores.types.RStore updatedRStore)

Updates this tracker with new, deleted or updated facts

Parameters:

updatedRStore -

Returns:

list of ID's of facts that where updated

getRStore

public nl.cwi.sen1.relationstores.types.RStore getRStore()

Simple getter

Returns:

the RStore object belonging to this Fact Tracker

getRTuple

public nl.cwi.sen1.relationstores.types.RTuple getRTuple(int id)

Simple getter

Parameters:

id -

Returns:

the RTuple belonging to the id (null if it doesn't exist)

getFactInfoFromRStore

public FactInfoList getFactInfoFromRStore()

Creates a list of FactInfo objects containing the descriptive data from the found facts (using the RTuples in the RStore).

Returns:

A FactInfoList object containing information about all the facts in the RStore.

diffRtuples

public static boolean diffRtuples(nl.cwi.sen1.relationstores.types.RTuple existingRTuple,
                                  nl.cwi.sen1.relationstores.types.RTuple newRTuple)

Checks if RTuples differ from eachother

Parameters:

existingRTuple -

newRTuple -

Returns:

true if RTuples are NOT equal

Throws:

java.lang.RuntimeException - if input is null

registerNewRTuple

protected void registerNewRTuple(nl.cwi.sen1.relationstores.types.RTuple rTuple)

Registers

Parameters:

rTuple -

Throws:

java.lang.RuntimeException - if rtuple is null

createIdentifierForRTuple

public static java.lang.String createIdentifierForRTuple(nl.cwi.sen1.relationstores.types.RTuple rTuple)

Used to create a textual identifier for a RTuple

Parameters:

rTuple -

Returns:

the identifier (name + "-" + rType)

Throws:

java.lang.RuntimeException - if rtuple is null