it.unibz.inf.ontop.spec.mapping.sqlparser

Class RAExpressionAttributeOccurrences

java.lang.Object

it.unibz.inf.ontop.spec.mapping.sqlparser.RAExpressionAttributeOccurrences

public class RAExpressionAttributeOccurrences
extends Object

Method Summary

Modifier and Type	Method and Description
com.google.common.collect.ImmutableSet<RelationID>	get(QuotedID id)
com.google.common.collect.ImmutableSet<QuotedID>	getAttributes()
boolean	isAbsent(QuotedID attribute) checks if there is an occurrence of the non-qualified attribute
boolean	isAmbiguous(QuotedID attribute) checks if occurrence of the non-qualified attribute are ambiguous (at least two relations contain the attribute)
boolean	isUnique(QuotedID attribute) checks if occurrence of the non-qualified attribute is unique (exactly one relation contains the attribute)
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

isAbsent

public boolean isAbsent(QuotedID attribute)

checks if there is an occurrence of the non-qualified attribute

Parameters:

attribute - a QuotedID

Returns:

true if contains the attribute; otherwise false

isAmbiguous

public boolean isAmbiguous(QuotedID attribute)

checks if occurrence of the non-qualified attribute are ambiguous (at least two relations contain the attribute)

Parameters:

attribute - a QuotedID

Returns:

true if the attribute is ambiguous; otherwise false

isUnique

public boolean isUnique(QuotedID attribute)

checks if occurrence of the non-qualified attribute is unique (exactly one relation contains the attribute)

Parameters:

attribute - a QuotedID

Returns:

true if the attribute is unique; otherwise false

getAttributes

public com.google.common.collect.ImmutableSet<QuotedID> getAttributes()

get

public com.google.common.collect.ImmutableSet<RelationID> get(QuotedID id)

toString

public String toString()

Overrides:

toString in class Object