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

Class BasicSelectQueryParser<T,O extends RAOperations<T>>

java.lang.Object

it.unibz.inf.ontop.spec.sqlparser.BasicSelectQueryParser<T,O>

Direct Known Subclasses:

DefaultSelectQueryAttributeExtractor, SelectQueryParser

public abstract class BasicSelectQueryParser<T,O extends RAOperations<T>>
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
protected ExpressionParser	expressionParser
protected QuotedIDFactory	idfac
protected O	operations
protected TermFactory	termFactory

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BasicSelectQueryParser(MetadataLookup metadata, CoreSingletons coreSingletons, O operations)

Method Summary

Modifier and Type	Method	Description
protected abstract T	create(NamedRelationDefinition relation)
it.unibz.inf.ontop.com.google.common.collect.ImmutableList<Variable>	createAttributeVariables(RelationDefinition relation)
protected net.sf.jsqlparser.statement.select.PlainSelect	getPlainSelect(net.sf.jsqlparser.statement.select.SelectBody selectBody)
protected T	join(T left, net.sf.jsqlparser.statement.select.Join join)	can be overridden to add additional checks
protected T	translateJoins(net.sf.jsqlparser.statement.select.FromItem left, List<net.sf.jsqlparser.statement.select.Join> joins)	main method for analysing FROM clauses
protected abstract T	translateSelect(net.sf.jsqlparser.statement.select.SelectBody selectBody, List<net.sf.jsqlparser.statement.select.WithItem> withItemsList)
protected void	validateFromItem(net.sf.jsqlparser.schema.Table table)

Methods inherited from class java.lang.Object

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

Field Detail

expressionParser

protected final ExpressionParser expressionParser

termFactory

protected final TermFactory termFactory

idfac

protected final QuotedIDFactory idfac

operations

protected final O extends RAOperations<T> operations

Constructor Detail

BasicSelectQueryParser

protected BasicSelectQueryParser(MetadataLookup metadata,
                                 CoreSingletons coreSingletons,
                                 O operations)

Method Detail

create

protected abstract T create(NamedRelationDefinition relation)

translateSelect

protected abstract T translateSelect(net.sf.jsqlparser.statement.select.SelectBody selectBody,
                                     List<net.sf.jsqlparser.statement.select.WithItem> withItemsList)

getPlainSelect

protected net.sf.jsqlparser.statement.select.PlainSelect getPlainSelect(net.sf.jsqlparser.statement.select.SelectBody selectBody)

Parameters:

selectBody -

Returns:

Throws:

UnsupportedSelectQueryRuntimeException

InvalidSelectQueryRuntimeException

translateJoins

protected T translateJoins(net.sf.jsqlparser.statement.select.FromItem left,
                           List<net.sf.jsqlparser.statement.select.Join> joins)
                    throws IllegalJoinException

main method for analysing FROM clauses

Parameters:

left -

joins -

Returns:

Throws:

IllegalJoinException

join

protected T join(T left,
                 net.sf.jsqlparser.statement.select.Join join)
          throws IllegalJoinException

can be overridden to add additional checks

Parameters:

left - expression

join - JSQLParser's Join

Returns:

resulting expression

Throws:

IllegalJoinException - if incorrect combination of modifiers is used

createAttributeVariables

public it.unibz.inf.ontop.com.google.common.collect.ImmutableList<Variable> createAttributeVariables(RelationDefinition relation)

validateFromItem

protected void validateFromItem(net.sf.jsqlparser.schema.Table table)