inpro.irmrsc.rmrs
Class Relation

java.lang.Object
  inpro.irmrsc.rmrs.Relation

All Implemented Interfaces:

VariableIDsInterpretable

public class Relation
extends java.lang.Object
implements VariableIDsInterpretable

A relation in a RMRS Formula.

All relations have an anchor variable, as well as a relation name and a type. Lexical relations (representing lexemes) and nonlexical relations (introduced by the grammar) also have a label and usually have an argument. Argument relations (expressing predicate argument structure) have no label but always an argument.

Author:

Andreas Peldszus

Nested Class Summary

static class

Relation.Type

Field Summary

private int	mAnchor
private int	mArgument
private boolean	mArgumentGiven
private int	mLabel
private java.lang.String	mName
private Relation.Type	mType

Constructor Summary

Relation()
default constructor, only used for xml loading

Relation(int Label, int Anchor, int Argument, java.lang.String Name, Relation.Type Type)

Relation(int Label, int Anchor, java.lang.String Name, Relation.Type Type)

Relation(Relation r)

Method Summary

int	getAnchor()
int	getArgument()
int	getLabel()
java.lang.String	getName()
Relation.Type	getType()
java.util.Set<java.lang.Integer>	getVariableIDs()
boolean	hasArgument()
boolean	isAbout(int variableID)
boolean	isAnchoredAs(int variableID)
void	parseXML(org.jdom.Element e) initializes this relation object from XML element variable definition <rel>
void	replaceVariableID(int oldID, int newID) replace all variables IDs matching a specifid old ID with a new ID
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

mLabel

private int mLabel

mAnchor

private int mAnchor

mArgument

private int mArgument

mName

private java.lang.String mName

mType

private Relation.Type mType

mArgumentGiven

private boolean mArgumentGiven

Constructor Detail

Relation

public Relation(int Label,
                int Anchor,
                int Argument,
                java.lang.String Name,
                Relation.Type Type)

Relation

public Relation(int Label,
                int Anchor,
                java.lang.String Name,
                Relation.Type Type)

Relation

public Relation(Relation r)

Relation

public Relation()

default constructor, only used for xml loading

Method Detail

getLabel

public int getLabel()

getAnchor

public int getAnchor()

hasArgument

public boolean hasArgument()

getArgument

public int getArgument()

getName

public java.lang.String getName()

getType

public Relation.Type getType()

isAbout

public boolean isAbout(int variableID)

isAnchoredAs

public boolean isAnchoredAs(int variableID)

getVariableIDs

public java.util.Set<java.lang.Integer> getVariableIDs()

Specified by:

getVariableIDs in interface VariableIDsInterpretable

Returns:

the set of IDs of all variables in that expression

replaceVariableID

public void replaceVariableID(int oldID,
                              int newID)

Description copied from interface: VariableIDsInterpretable

replace all variables IDs matching a specifid old ID with a new ID

Specified by:

replaceVariableID in interface VariableIDsInterpretable

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

parseXML

public void parseXML(org.jdom.Element e)

initializes this relation object from XML element variable definition <rel>

Parameters:

e - the element