uk.ac.bbk.dcs.automed.wrappers
Class IQLTranslator

java.lang.Object
  uk.ac.bbk.dcs.automed.wrappers.IQLTranslator

Direct Known Subclasses:

IQL2SQLTranslator, IQL2XQuery

public abstract class IQLTranslator
extends java.lang.Object

Class Task Description

Author:

Lucas Zamboulis

Field Summary

java.lang.String	aggregateIQLFunction
boolean	aggregateQuery
boolean	collectionQuery
java.util.Map	compSubCompMap Contains mapping between the vars in a generator pattern and the vars in the head of a subcomp.
ASG	headPattern
protected java.util.logging.Logger	logger
java.util.Map	memberMap Contains subselect statements and the variables assigned to them.
IQLTranslator	parentTranslator
protected static int	queryCount Integer for enumerating the number of different subqueries in the translated query.
java.util.Map	varAsMap Contains mapping between variables and the AS SQL names of the constructs that the variables point to.
java.util.Map	varConsMap Contains mapping between variables and SQL constructs.
AutoMedWrapper	w

Constructor Summary

IQLTranslator()

Method Summary

ASG	getHeadPattern()
abstract java.lang.String	getQuery()
protected abstract void	initialise()
boolean	isAggregateQuery()
void	logMaps()
void	translate(ASG g)
protected abstract void	translate(Cell c)
(package private) void	updateParent()

Methods inherited from class java.lang.Object

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

Field Detail

w

public AutoMedWrapper w

headPattern

public ASG headPattern

aggregateQuery

public boolean aggregateQuery

aggregateIQLFunction

public java.lang.String aggregateIQLFunction

collectionQuery

public boolean collectionQuery

parentTranslator

public IQLTranslator parentTranslator

logger

protected java.util.logging.Logger logger

queryCount

protected static int queryCount

Integer for enumerating the number of different subqueries in the translated query.

varConsMap

public java.util.Map varConsMap

Contains mapping between variables and SQL constructs.

varAsMap

public java.util.Map varAsMap

Contains mapping between variables and the AS SQL names of the constructs that the variables point to.

memberMap

public java.util.Map memberMap

Contains subselect statements and the variables assigned to them. This is only for translating the member IQL function.

compSubCompMap

public java.util.Map compSubCompMap

Contains mapping between the vars in a generator pattern and the vars in the head of a subcomp.

Constructor Detail

IQLTranslator

public IQLTranslator()

Method Detail

translate

public void translate(ASG g)
               throws TranslationException

Throws:

TranslationException

getQuery

public abstract java.lang.String getQuery()

updateParent

void updateParent()

logMaps

public void logMaps()

translate

protected abstract void translate(Cell c)
                           throws TranslationException

Throws:

TranslationException

initialise

protected abstract void initialise()

getHeadPattern

public final ASG getHeadPattern()

isAggregateQuery

public final boolean isAggregateQuery()