Package net.ssehub.easy.varModel.cst

Class ConstraintSyntaxTree

java.lang.Object

net.ssehub.easy.varModel.cst.ConstraintSyntaxTree

All Implemented Interfaces:

IAttributeAccess

Direct Known Subclasses:

BlockExpression, Comment, CompoundAccess, CompoundInitializer, ContainerInitializer, ContainerOperationCall, IfThen, Leaf, Let, MultiAndExpression, NamedArgument, OCLFeatureCall, Parenthesis, UnresolvedExpression

public abstract class ConstraintSyntaxTree
extends java.lang.Object
implements IAttributeAccess

Class to show the syntax of an Constraint.

Author:

Heiko Beck, Holger Eichelberger

Constructor Summary

Constructors

Constructor	Description
ConstraintSyntaxTree()

Method Summary

Modifier and Type	Method	Description
abstract void	accept(IConstraintTreeVisitor visitor)	Visiting method for the visitor.
Attribute	getAttribute(int index)	Returns a specific attribute.
Attribute	getAttribute(java.lang.String name)	Returns a specific attribute.
int	getAttributesCount()	Returns the number of attributes.
IDatatype	getContainedType()	Returns the data type explicitly contained in this syntax tree.
java.lang.String	getName()	Returns the name of the constraint syntax tree (in case if it is used as a named argument).
IModelElement	getParent()	Returns the parent model element.
abstract IDatatype	inferDatatype()	Infers the datatype of the subtree represented by this object.
boolean	isSemanticallyEqual(ConstraintSyntaxTree otherTree)	Checks whether this ConstraintSyntaxTree is semantically equal to another ConstraintSyntaxTree.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstraintSyntaxTree

public ConstraintSyntaxTree()

Method Detail

accept

public abstract void accept(IConstraintTreeVisitor visitor)

Visiting method for the visitor.
This method is used for saving this model element.

Parameters:

visitor - The visitor, which should save this model element.

inferDatatype

public abstract IDatatype inferDatatype()
                                 throws CSTSemanticException

Infers the datatype of the subtree represented by this object.

Returns:

the data type

Throws:

CSTSemanticException - Will be thrown if parameters of (sub-) trees do not fit together.

getContainedType

public IDatatype getContainedType()

Returns the data type explicitly contained in this syntax tree. This is typically a constant value which contains a meta value, i.e. a type expression.

Returns:

the contained type or null if there is none

getAttributesCount

public int getAttributesCount()

Returns the number of attributes.

Specified by:

getAttributesCount in interface IAttributeAccess

Returns:

the number of attributes

getAttribute

public Attribute getAttribute(int index)

Returns a specific attribute.

Specified by:

getAttribute in interface IAttributeAccess

Parameters:

index - the index of the attribute

Returns:

the attribute

Throws:

java.lang.IndexOutOfBoundsException - if index<0 || index>=getAttributesCount()

getAttribute

public Attribute getAttribute(java.lang.String name)

Returns a specific attribute.

Specified by:

getAttribute in interface IAttributeAccess

Parameters:

name - the name of the attribute

Returns:

the attribute (or null if not found)

getParent

public IModelElement getParent()

Returns the parent model element.

Specified by:

getParent in interface IAttributeAccess

Returns:

the parent model element (may be null)

isSemanticallyEqual

public boolean isSemanticallyEqual(ConstraintSyntaxTree otherTree)

Checks whether this ConstraintSyntaxTree is semantically equal to another ConstraintSyntaxTree. Attention:This method is not fully supported by all operations and sub classes.

Parameters:

otherTree - Another cst to check whether it is semantically equal to this cst.

Returns:

true if both trees are semantically equal, false otherwise.

getName

public java.lang.String getName()

Returns the name of the constraint syntax tree (in case if it is used as a named argument).

Returns:

the name, may be null for none