Package net.ssehub.easy.varModel.model.filter

Class ConstraintClassifier

java.lang.Object

net.ssehub.easy.varModel.model.filter.ConstraintClassifier

All Implemented Interfaces:

IConstraintTreeVisitor

class ConstraintClassifier
extends Object
implements IConstraintTreeVisitor

This class is able to classify a constraint in one of the following categories.

• AssignmentConstraints - Assigning one value to exactly one variable
• Constraints - all other constraints without the AssignmentConstraints

Author:

El-Sharkawy

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static enum	ConstraintClassifier.ExpectedType	With the aid of this enum is it possible to tell the Classifier which part of a constraint is expected to be next.

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	isAssingmentConstraint
private ConstraintClassifier.ExpectedType	nextType

Constructor Summary

Constructors

Constructor	Description
ConstraintClassifier(ConstraintSyntaxTree tree)	Sole constructor for this class, classifies exactly one constraint, whether it is an AssignmentConstraint.

Method Summary

Modifier and Type	Method	Description
(package private) boolean	isAssingmentConstraint()	Returns whether the given ConstraintTree is an AssignmentConstraint or not.
void	visitAnnotationVariable(AttributeVariable variable)	Visits a AttributeVariable.
void	visitBlockExpression(BlockExpression block)	Visits the block.
void	visitComment(Comment parenthesis)	Visits a comment.
void	visitCompoundAccess(CompoundAccess access)	Visits a compound access node.
void	visitCompoundInitializer(CompoundInitializer init)	Visits a compound initializer.
void	visitConstantValue(ConstantValue value)	Visits a constant value.
void	visitContainerInitializer(ContainerInitializer init)	Visits a container initializer.
void	visitContainerOperationCall(ContainerOperationCall call)	Visits a container operation call (e.g.
void	visitDeferInitExpression(DeferInitExpression expression)	Visits a default init expression.
void	visitIfThen(IfThen ifThen)	Visits an if-then-else expression.
void	visitLet(Let let)	Visits a let expression.
void	visitMultiAndExpression(MultiAndExpression expression)	Visits a multi-and expression.
void	visitOclFeatureCall(OCLFeatureCall call)	Visits an OCL feature call.
void	visitParenthesis(Parenthesis parenthesis)	Visits a parenthesis.
void	visitSelf(Self self)	Visits self.
void	visitUnresolvedExpression(UnresolvedExpression expression)	Visits an unresolved expression.
void	visitVariable(Variable variable)	Visits a variable.

Methods inherited from class java.lang.Object

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

Field Details

nextType

private ConstraintClassifier.ExpectedType nextType

isAssingmentConstraint

private boolean isAssingmentConstraint

Constructor Details

ConstraintClassifier

ConstraintClassifier(ConstraintSyntaxTree tree)

Sole constructor for this class, classifies exactly one constraint, whether it is an AssignmentConstraint.

Parameters:

tree - The constraint which should be classified.

Method Details

isAssingmentConstraint

boolean isAssingmentConstraint()

Returns whether the given ConstraintTree is an AssignmentConstraint or not.

Returns:

true if the given constraint is an AssignmentConstraint, otherwise false.

visitConstantValue

public void visitConstantValue(ConstantValue value)

Description copied from interface: IConstraintTreeVisitor

Visits a constant value.

Specified by:

visitConstantValue in interface IConstraintTreeVisitor

Parameters:

value - the value which should be visited

visitVariable

public void visitVariable(Variable variable)

Description copied from interface: IConstraintTreeVisitor

Visits a variable.

Specified by:

visitVariable in interface IConstraintTreeVisitor

Parameters:

variable - the variable which should be visited

visitAnnotationVariable

public void visitAnnotationVariable(AttributeVariable variable)

Description copied from interface: IConstraintTreeVisitor

Visits a AttributeVariable.

Specified by:

visitAnnotationVariable in interface IConstraintTreeVisitor

Parameters:

variable - the attribute variable which should be visited

visitParenthesis

public void visitParenthesis(Parenthesis parenthesis)

Description copied from interface: IConstraintTreeVisitor

Visits a parenthesis.

Specified by:

visitParenthesis in interface IConstraintTreeVisitor

Parameters:

parenthesis - the parenthesis which should be visited

visitContainerInitializer

public void visitContainerInitializer(ContainerInitializer init)

Description copied from interface: IConstraintTreeVisitor

Visits a container initializer.

Specified by:

visitContainerInitializer in interface IConstraintTreeVisitor

Parameters:

init - the container initializer node

visitCompoundInitializer

public void visitCompoundInitializer(CompoundInitializer init)

Description copied from interface: IConstraintTreeVisitor

Visits a compound initializer.

Specified by:

visitCompoundInitializer in interface IConstraintTreeVisitor

Parameters:

init - the compound initializer node

visitComment

public void visitComment(Comment parenthesis)

Description copied from interface: IConstraintTreeVisitor

Visits a comment.

Specified by:

visitComment in interface IConstraintTreeVisitor

Parameters:

parenthesis - the comment node which should be visited

visitOclFeatureCall

public void visitOclFeatureCall(OCLFeatureCall call)

Description copied from interface: IConstraintTreeVisitor

Visits an OCL feature call.

Specified by:

visitOclFeatureCall in interface IConstraintTreeVisitor

Parameters:

call - the feature call which should be visited

visitDeferInitExpression

public void visitDeferInitExpression(DeferInitExpression expression)

Description copied from interface: IConstraintTreeVisitor

Visits a default init expression.

Specified by:

visitDeferInitExpression in interface IConstraintTreeVisitor

Parameters:

expression - the expression

visitMultiAndExpression

public void visitMultiAndExpression(MultiAndExpression expression)

Description copied from interface: IConstraintTreeVisitor

Visits a multi-and expression.

Specified by:

visitMultiAndExpression in interface IConstraintTreeVisitor

Parameters:

expression - the expression to be visited

visitLet

public void visitLet(Let let)

Description copied from interface: IConstraintTreeVisitor

Visits a let expression.

Specified by:

visitLet in interface IConstraintTreeVisitor

Parameters:

let - the let expression which should be visited

visitIfThen

public void visitIfThen(IfThen ifThen)

Description copied from interface: IConstraintTreeVisitor

Visits an if-then-else expression.

Specified by:

visitIfThen in interface IConstraintTreeVisitor

Parameters:

ifThen - the if-then-else expression which should be visited

visitContainerOperationCall

public void visitContainerOperationCall(ContainerOperationCall call)

Description copied from interface: IConstraintTreeVisitor

Visits a container operation call (e.g. quantors, iterators).

Specified by:

visitContainerOperationCall in interface IConstraintTreeVisitor

Parameters:

call - the container operation call

visitCompoundAccess

public void visitCompoundAccess(CompoundAccess access)

Description copied from interface: IConstraintTreeVisitor

Visits a compound access node.

Specified by:

visitCompoundAccess in interface IConstraintTreeVisitor

Parameters:

access - the compound access node

visitUnresolvedExpression

public void visitUnresolvedExpression(UnresolvedExpression expression)

Description copied from interface: IConstraintTreeVisitor

Visits an unresolved expression. Please note that an unresolved expression may represent a leaf as well as an inner tree node. Typically, visitors shall continue visiting transparently at UnresolvedExpression.getActualExpression().

Specified by:

visitUnresolvedExpression in interface IConstraintTreeVisitor

Parameters:

expression - the expression

visitSelf

public void visitSelf(Self self)

Description copied from interface: IConstraintTreeVisitor

Visits self.

Specified by:

visitSelf in interface IConstraintTreeVisitor

Parameters:

self - the self object to visit

visitBlockExpression

public void visitBlockExpression(BlockExpression block)

Description copied from interface: IConstraintTreeVisitor

Visits the block.

Specified by:

visitBlockExpression in interface IConstraintTreeVisitor

Parameters:

block - the block to be visited