Package net.ssehub.easy.instantiation.core.model.templateModel

Class AlternativeStatement

java.lang.Object

net.ssehub.easy.instantiation.core.model.templateModel.AbstractTemplateElement

net.ssehub.easy.instantiation.core.model.templateModel.AlternativeStatement

All Implemented Interfaces:

ILanguageElement, ITemplateElement, ITemplateLangElement

public class AlternativeStatement
extends AbstractTemplateElement

Representation of an alternative-statement in VIL templates which allows conditional processing of two template language statements or blocks (if-then-else).

Author:

kroeher

Field Summary

Fields

Modifier and Type	Field	Description
private Expression	condition
private ITemplateElement	elseStatement
private ITemplateElement	ifStatement

Constructor Summary

Constructors

Constructor	Description
AlternativeStatement()	Constructor for serialization.
AlternativeStatement(Expression condition, ITemplateElement ifStatement)	Create an alternative-statement with a single if-block only.
AlternativeStatement(Expression condition, ITemplateElement ifStatement, ITemplateElement elseStatement)	Create an alternative-statement with an if-block and an else-block.

Method Summary

Modifier and Type	Method	Description
java.lang.Object	accept(IVisitor visitor)	Accepts the visitor for visiting.
boolean	endsWithContentStatement()	Returns whether this element ends with a content statement.
Expression	getCondition()	Get the condition of this alternative.
ITemplateElement	getElseStatement()	Get the else-statement of this alternative.
ITemplateElement	getIfStatement()	Get the if-statement of this alternative.
TypeDescriptor<?>	inferType()	Infers the type of this language element.
boolean	isBlock()	Returns whether this element is a block (opposite is a single statement).

Methods inherited from class net.ssehub.easy.instantiation.core.model.templateModel.AbstractTemplateElement

getParent, setParent

Methods inherited from class java.lang.Object

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

Field Detail

condition

private Expression condition

ifStatement

private ITemplateElement ifStatement

elseStatement

private ITemplateElement elseStatement

Constructor Detail

AlternativeStatement

AlternativeStatement()

Constructor for serialization.

AlternativeStatement

public AlternativeStatement(Expression condition,
                            ITemplateElement ifStatement)
                     throws VilException

Create an alternative-statement with a single if-block only.

Parameters:

condition - The condition which must be evaluated to true to process the if-block.

ifStatement - The if-statement which subsumes a set of template elements that will only be processed if the condition is evaluated to true.

Throws:

VilException - in case that the construction fails due to semantic problems

AlternativeStatement

public AlternativeStatement(Expression condition,
                            ITemplateElement ifStatement,
                            ITemplateElement elseStatement)
                     throws VilException

Create an alternative-statement with an if-block and an else-block.

Parameters:

condition - The condition of this alternative. If evaluated to true the if-block will be processed. If evaluated to false the else-block will be processed.

ifStatement - The if-block which subsumes a set of template elements that will only be processed if the condition is evaluated to true.

elseStatement - The else-block which subsumes a set of template elements that will only be processed if the condition is evaluated to false.

Throws:

VilException - in case that the construction fails due to semantic problems

Method Detail

getCondition

public Expression getCondition()

Get the condition of this alternative.

Returns:

The condition expression of this alternative

getIfStatement

public ITemplateElement getIfStatement()

Get the if-statement of this alternative.

Returns:

The template element that represents the if-statement of this alternative.

getElseStatement

public ITemplateElement getElseStatement()

Get the else-statement of this alternative.

Returns:

The template element that represents the else-statement of this alternative or null if no else-statement is defined.

accept

public java.lang.Object accept(IVisitor visitor)
                        throws VilException

Description copied from interface: ITemplateLangElement

Accepts the visitor for visiting.

Parameters:

visitor - the visitor to be used

Returns:

the result of visiting this instance (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

isBlock

public boolean isBlock()

Description copied from interface: ITemplateElement

Returns whether this element is a block (opposite is a single statement).

Returns:

true if it is a block, false else

inferType

public TypeDescriptor<?> inferType()
                            throws VilException

Description copied from interface: ITemplateElement

Infers the type of this language element.

Returns:

the type of this language element

Throws:

VilException - in case that type errors occur

endsWithContentStatement

public boolean endsWithContentStatement()

Description copied from interface: ITemplateElement

Returns whether this element ends with a content statement.

Returns:

true for end with content statement, false else