Package com.aquima.interactions.expressions.semantics

Class SemanticNodeBase

java.lang.Object

com.aquima.interactions.expressions.semantics.SemanticNodeBase

All Implemented Interfaces:

ISemanticNode

Direct Known Subclasses:

AllVariable, Arithmetic, Condition, Constant, Conversion, DimensionChange, ErrorNode, ExpressionList, FieldVariable, FunctionCall, InstanceOf, Inversion, ListArithmetic, ListCondition, LocalVariable, LogicalConnective, NamedVariable, Not, Predicate, Root, Select, TemplateCall, TypeOf, Unknown, Variable

public abstract class SemanticNodeBase
extends Object
implements ISemanticNode

Base class for all nodes from the semantic tree.

Since:

6.0

Author:

O. Kerpershoek, F. van der Meer

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SemanticNodeBase(Position position)

Method Summary

Modifier and Type	Method	Description
void	addMessage(Severity severity, ErrorMessage message)	This method adds a message to the semantic node.
DataType	getDataType()	This method returns the data type of the node.
Domain	getDomain()	This method returns the domain of values that may be returned by the expression.
ErrorMessage[]	getMessages(Severity severity, boolean includeChildMessages)	This method returns an array of messages that were detected while parsing the node.
Position	getPosition()	This method returns the position information of the node.
Type	getType()	This method returns the type information of the node.
boolean	hasMessage(Severity severity, ErrorCode errorCode, boolean includeChildMessages)	This method detects whether a specific message is found within the semantic node.
boolean	isDerivedType()	This method returns a boolean indicating if the type of this node is derived.
boolean	isMultivalue()	This method returns a boolean indicating if the expression will result in multiple values.
protected void	setDerived(boolean isDerived)
protected void	setDomain(Domain domain)
protected void	setType(Type type)
protected void	setType(DataType type, boolean multivalue)
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.aquima.interactions.expressions.semantics.ISemanticNode

collectScopedObjects, getChildNodes, visit

Constructor Detail

SemanticNodeBase

protected SemanticNodeBase(Position position)

Method Detail

setType

protected void setType(DataType type,
                       boolean multivalue)

setType

protected void setType(Type type)

setDomain

protected void setDomain(Domain domain)

setDerived

protected void setDerived(boolean isDerived)

getPosition

public Position getPosition()

Description copied from interface: ISemanticNode

This method returns the position information of the node.

Specified by:

getPosition in interface ISemanticNode

Returns:

The position information of the node.

getType

public Type getType()

Description copied from interface: ISemanticNode

This method returns the type information of the node. The type information is a combination of the data type, the domain and the multivalue indicator.

Specified by:

getType in interface ISemanticNode

Returns:

The type information of the node.

getDataType

public DataType getDataType()

Description copied from interface: ISemanticNode

This method returns the data type of the node.

Specified by:

getDataType in interface ISemanticNode

Returns:

the data type of the node.

isMultivalue

public boolean isMultivalue()

Description copied from interface: ISemanticNode

This method returns a boolean indicating if the expression will result in multiple values.

Specified by:

isMultivalue in interface ISemanticNode

Returns:

a boolean indicating if the expression will result in multiple values.

getDomain

public Domain getDomain()

Description copied from interface: ISemanticNode

This method returns the domain of values that may be returned by the expression.

Specified by:

getDomain in interface ISemanticNode

Returns:

the domain of values that may be returned by the expression.

isDerivedType

public boolean isDerivedType()

Description copied from interface: ISemanticNode

This method returns a boolean indicating if the type of this node is derived. A derived type is usually the result of an operation where the result type may be ambiguous. For instance the multiplication of a number with a percentage, may result in either a number or a percentage. Usually the most specific type is chosen (percentage in the previous example). Nodes representing constants or variables will often return false as a result of this method.

Specified by:

isDerivedType in interface ISemanticNode

Returns:

a boolean indicating if the type of this node is derived.

getMessages

public final ErrorMessage[] getMessages(Severity severity,
                                        boolean includeChildMessages)

Description copied from interface: ISemanticNode

This method returns an array of messages that were detected while parsing the node. If the severity parameter is null, all messages will be returned regardless of their severity. When a severity is specified, only the messages matching the severity will be returned. The boolean argument may be used to indicate if only the messages of this node should be returned, or also the messages of any child nodes.

Specified by:

getMessages in interface ISemanticNode

Parameters:

severity - The severity may be used to request only the messages matching the specified severity.

includeChildMessages - Boolean indicating if child messages should also be returned.

Returns:

Array of messages that were detected during the parse phase for this node.

addMessage

public void addMessage(Severity severity,
                       ErrorMessage message)

Description copied from interface: ISemanticNode

This method adds a message to the semantic node.

Specified by:

addMessage in interface ISemanticNode

Parameters:

severity - The severity of the message.

message - The message that should be added.

hasMessage

public boolean hasMessage(Severity severity,
                          ErrorCode errorCode,
                          boolean includeChildMessages)

Description copied from interface: ISemanticNode

This method detects whether a specific message is found within the semantic node. The boolean argument may be used to indicate if only the messages of this node should be checked, or also the messages of any child nodes. The severity parameter may be used to specify if only messages matching that severity should be searched. When the severity parameter is null, all messages regardless of severity will be searched.

Specified by:

hasMessage in interface ISemanticNode

Parameters:

severity - The severity of the error (optional).

errorCode - The error code for which to search.

includeChildMessages - Boolean indicating if child messages should also be checked.

Returns:

A boolean indicating the error was found in the node.

toString

public String toString()

Overrides:

toString in class Object