Package it.unibz.inf.ontop.spec.sqlparser

Class RAExpressionOperations

java.lang.Object

it.unibz.inf.ontop.spec.sqlparser.RAExpressionOperations

All Implemented Interfaces:

RAOperations<RAExpression>

public class RAExpressionOperations
extends Object
implements RAOperations<RAExpression>

Constructor Summary

Constructors

Constructor	Description
RAExpressionOperations(TermFactory termFactory, IntermediateQueryFactory iqFactory)

Method Summary

Modifier and Type	Method	Description
RAExpression	create()
RAExpression	create(NamedRelationDefinition relation, it.unibz.inf.ontop.com.google.common.collect.ImmutableList<Variable> variables)
RAExpression	createWithoutName(RelationDefinition relation, it.unibz.inf.ontop.com.google.common.collect.ImmutableList<Variable> variables)
RAExpression	crossJoin(RAExpression left, RAExpression right)	CROSS JOIN (also denoted by , in SQL)
RAExpression	filter(RAExpression rae, it.unibz.inf.ontop.com.google.common.collect.ImmutableList<ImmutableExpression> filter)
it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<QuotedID>	getSharedAttributeNames(RAExpression left, RAExpression right)
RAExpression	joinOn(RAExpression left, RAExpression right, Function<RAExpressionAttributes,it.unibz.inf.ontop.com.google.common.collect.ImmutableList<ImmutableExpression>> getAtomOnExpression)	JOIN ON
RAExpression	joinUsing(RAExpression left, RAExpression right, it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<QuotedID> using)	JOIN USING
RAExpression	withAlias(RAExpression rae, RelationID aliasId)	(relational expression) AS A

Methods inherited from class java.lang.Object

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

Methods inherited from interface it.unibz.inf.ontop.spec.sqlparser.RAOperations

naturalJoin

Constructor Detail

RAExpressionOperations

public RAExpressionOperations(TermFactory termFactory,
                              IntermediateQueryFactory iqFactory)

Method Detail

create

public RAExpression create()

Specified by:

create in interface RAOperations<RAExpression>

create

public RAExpression create(NamedRelationDefinition relation,
                           it.unibz.inf.ontop.com.google.common.collect.ImmutableList<Variable> variables)

Specified by:

create in interface RAOperations<RAExpression>

createWithoutName

public RAExpression createWithoutName(RelationDefinition relation,
                                      it.unibz.inf.ontop.com.google.common.collect.ImmutableList<Variable> variables)

withAlias

public RAExpression withAlias(RAExpression rae,
                              RelationID aliasId)

(relational expression) AS A

Specified by:

withAlias in interface RAOperations<RAExpression>

Parameters:

aliasId - a RelationID

Returns:

a RAExpression

crossJoin

public RAExpression crossJoin(RAExpression left,
                              RAExpression right)
                       throws IllegalJoinException

CROSS JOIN (also denoted by , in SQL)

Specified by:

crossJoin in interface RAOperations<RAExpression>

Parameters:

left - a RAExpression

right - a RAExpression

Returns:

a RAExpression

Throws:

IllegalJoinException - if the same alias occurs in both arguments

joinUsing

public RAExpression joinUsing(RAExpression left,
                              RAExpression right,
                              it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<QuotedID> using)
                       throws IllegalJoinException

JOIN USING

Specified by:

joinUsing in interface RAOperations<RAExpression>

Parameters:

left - a RAExpression

right - a RAExpression

using - a ImmutableSet<QuotedID>

Returns:

a RAExpression

Throws:

IllegalJoinException - if the same alias occurs in both arguments or one of the `using' attributes is ambiguous or absent

joinOn

public RAExpression joinOn(RAExpression left,
                           RAExpression right,
                           Function<RAExpressionAttributes,it.unibz.inf.ontop.com.google.common.collect.ImmutableList<ImmutableExpression>> getAtomOnExpression)
                    throws IllegalJoinException

JOIN ON

Specified by:

joinOn in interface RAOperations<RAExpression>

Parameters:

left - a RAExpression

right - a RAExpression

getAtomOnExpression -

Returns:

a RAExpression

Throws:

IllegalJoinException - if the same alias occurs in both arguments

getSharedAttributeNames

public it.unibz.inf.ontop.com.google.common.collect.ImmutableSet<QuotedID> getSharedAttributeNames(RAExpression left,
                                                                                                   RAExpression right)

Specified by:

getSharedAttributeNames in interface RAOperations<RAExpression>

filter

public RAExpression filter(RAExpression rae,
                           it.unibz.inf.ontop.com.google.common.collect.ImmutableList<ImmutableExpression> filter)

Specified by:

filter in interface RAOperations<RAExpression>