uk.ac.ic.doc.rodex.qproc
Class MiniConQueryRewriter.MiniConDescription

java.lang.Object
  uk.ac.ic.doc.rodex.qproc.MiniConQueryRewriter.MiniConDescription

Enclosing class:

MiniConQueryRewriter

protected class MiniConQueryRewriter.MiniConDescription
extends java.lang.Object

A private inner class to represent an MCD

Constructor Summary

MiniConQueryRewriter.MiniConDescription(QueryAnalyser view)

Method Summary

java.util.List	add(MiniConQueryRewriter.MiniConDescription anotherMCD) A method to add two MCD objects together.
void	addASubGoal(QuerySubGoal qsg) Add a sub-goal to this MCD
void	addSubGoals(java.util.List subGoals) Add sub-goals to the MCD
java.util.List	getConstantVariables() Return a List of constants (if any) in the associated view
java.util.List	getFunctions() Return the List of QueryFunction objects found. Returns null if no functions found
java.util.List	getHeadVars() Return a List of head variables of the view query associated to this MCD
java.util.List	getSubGoals() Returns only the minimum set of sub-goals found when constructing the MCD
ASG	getView() Return the original ASG object of the view
java.lang.String	getViewAsString() Return the view rule to which this MCD is associated
java.util.List	getViewSubGoals() Returns the complete set of sub-goals of the associated view
boolean	isDisjointWith(MiniConQueryRewriter.MiniConDescription anotherMCD) Check if this MCD is disjoint from another MCD, i.e.
java.lang.String	toString() Convert MCD's content to string

Methods inherited from class java.lang.Object

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

Constructor Detail

MiniConQueryRewriter.MiniConDescription

public MiniConQueryRewriter.MiniConDescription(QueryAnalyser view)

Method Detail

addASubGoal

public void addASubGoal(QuerySubGoal qsg)

Add a sub-goal to this MCD

Parameters:

qsg - a QuerySubGoal object

addSubGoals

public void addSubGoals(java.util.List subGoals)

Add sub-goals to the MCD

Parameters:

List - sub goals that form the MCD

getSubGoals

public java.util.List getSubGoals()

Returns only the minimum set of sub-goals found when constructing the MCD

Returns:

List a list of QuerySubGoal objects

getViewSubGoals

public java.util.List getViewSubGoals()

Returns the complete set of sub-goals of the associated view

Returns:

List a list of QuerySubGoal objects

isDisjointWith

public boolean isDisjointWith(MiniConQueryRewriter.MiniConDescription anotherMCD)

Check if this MCD is disjoint from another MCD, i.e. sharing no common sub-goals

Parameters:

anotherMCD - another MiniConQueryRewriter.MiniConDescription object

Returns:

boolean true if disjoint, false otherwise

add

public java.util.List add(MiniConQueryRewriter.MiniConDescription anotherMCD)

A method to add two MCD objects together. This operation involves
adding two sets of sub-goals of the two MCDs

Parameters:

anotherMCD - the second MiniConQueryRewriter.MiniConDescription object

Returns:

List a combined list of sub-goals from the two MCDs

getViewAsString

public java.lang.String getViewAsString()

Return the view rule to which this MCD is associated

Returns:

String the view rule

getView

public ASG getView()

Return the original ASG object of the view

getConstantVariables

public java.util.List getConstantVariables()

Return a List of constants (if any) in the associated view

Returns:

List list of constants or null if no constants are found

getHeadVars

public java.util.List getHeadVars()

Return a List of head variables of the view query associated
to this MCD

getFunctions

public java.util.List getFunctions()

Return the List of QueryFunction objects found.
Returns null if no functions found

toString

public java.lang.String toString()

Convert MCD's content to string

Overrides:

toString in class java.lang.Object