ch.ethz.mxquery.datamodel
Class DeweyIdentifier

java.lang.Object
  ch.ethz.mxquery.datamodel.DeweyIdentifier

All Implemented Interfaces:

Identifier

public class DeweyIdentifier
extends java.lang.Object
implements Identifier

Constructor Summary

DeweyIdentifier(Identifier lastID, int level, Source source)

DeweyIdentifier(int[] dewey_id2, int level, Source store2)

Method Summary

int	compare(Identifier toCompare) Compares this token identifier with an other one.
int	comparePosition(Identifier toCompare)
static Identifier	createIdentifier(Identifier last_identifier, int level, Source store) Creates an identifier for a particular store at a level starting from a previous identifier
static Identifier[]	createInsertIdentifiers(Identifier leftBoundId, Identifier rightBoundId, int number, Source source, int[] levels) Creates Identifiers for Tokens that are between the ids leftBoundId and rightBoundId.
void	dumpID()
int[]	getDeweyId() returns the Dewey Id of this
int	getDeweyLevel() returns the length (level) of this
Source	getStore() returns the source of the identifier
boolean	isAncestorOf(DeweyIdentifier did) returns true if this is ancestor of did
boolean	isChildOf(DeweyIdentifier did) returns true if this is child (direct descendant) of did
boolean	isDescendantOf(DeweyIdentifier did) returns true if this is descendant of did
boolean	isParentOf(DeweyIdentifier did) returns true if this is parent (direct ancestor) of did
boolean	isSmallerThan(DeweyIdentifier did) returns true if this is smaller than did (order)

Methods inherited from class java.lang.Object

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

Constructor Detail

DeweyIdentifier

public DeweyIdentifier(Identifier lastID,
                       int level,
                       Source source)

DeweyIdentifier

public DeweyIdentifier(int[] dewey_id2,
                       int level,
                       Source store2)

Method Detail

compare

public int compare(Identifier toCompare)

Compares this token identifier with an other one.

Specified by:

compare in interface Identifier

Parameters:

toCompare - another Identifier to compare

Returns:

0 if equal, -1 if identifier is smaller, 1 if identifier is bigger, and -2 if the two Identifier do not belong to the same data source.

comparePosition

public int comparePosition(Identifier toCompare)

getStore

public Source getStore()

returns the source of the identifier

Specified by:

getStore in interface Identifier

Returns:

the Source/Store for this identifier

isAncestorOf

public boolean isAncestorOf(DeweyIdentifier did)

returns true if this is ancestor of did

isParentOf

public boolean isParentOf(DeweyIdentifier did)

returns true if this is parent (direct ancestor) of did

isDescendantOf

public boolean isDescendantOf(DeweyIdentifier did)

returns true if this is descendant of did

isChildOf

public boolean isChildOf(DeweyIdentifier did)

returns true if this is child (direct descendant) of did

isSmallerThan

public boolean isSmallerThan(DeweyIdentifier did)

returns true if this is smaller than did (order)

getDeweyId

public int[] getDeweyId()

returns the Dewey Id of this

getDeweyLevel

public int getDeweyLevel()

returns the length (level) of this

createIdentifier

public static Identifier createIdentifier(Identifier last_identifier,
                                          int level,
                                          Source store)

Creates an identifier for a particular store at a level starting from a previous identifier

Parameters:

last_identifier -

level -

store -

Returns:

a new Dewey Identifier

createInsertIdentifiers

public static Identifier[] createInsertIdentifiers(Identifier leftBoundId,
                                                   Identifier rightBoundId,
                                                   int number,
                                                   Source source,
                                                   int[] levels)
                                            throws MXQueryException

Creates Identifiers for Tokens that are between the ids leftBoundId and rightBoundId.

Parameters:

leftBoundId - left bound

rightBoundId - right bound

number - number of ids that the method must produce

source - data source of the newly created ids

Returns:

array of identifiers

Throws:

MXQueryException

dumpID

public void dumpID()