uk.ac.sheffield.vtts.model

Class Element

java.lang.Object

uk.ac.sheffield.vtts.model.Element

Direct Known Subclasses:

Alphabet, Binding, Condition, Language, Named, Notice, Sequence

public class Element
extends java.lang.Object

Element is the root Element of the metamodel.

Version:

Broker@Cloud 1.0

Author:

Anthony J H Simons

Constructor Summary

Constructors

Constructor and Description
Element()

Method Summary

Methods

Modifier and Type	Method and Description
protected boolean	safeEquals(java.lang.Object one, java.lang.Object two) Safe equality comparison that performs the null-checks.
protected int	safeHashCode(java.lang.Object object) Safe hash code function that performs the null-check.
protected void	semanticError(java.lang.String message) Reports a semantic error during model construction.

Methods inherited from class java.lang.Object

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

Constructor Detail

Element

public Element()

Method Detail

safeEquals

protected boolean safeEquals(java.lang.Object one,
                 java.lang.Object two)

Safe equality comparison that performs the null-checks. Objects one and two are equal if they are both null, or if they are both non-null and one.equals(two) is true. Otherwise they are not equal.

Parameters:

one - the first object.

two - the second object.

Returns:

true if the objects are equal.

safeHashCode

protected int safeHashCode(java.lang.Object object)

Safe hash code function that performs the null-check. The hash code for a non-null object is object.hashCode(), otherwise it is zero.

Parameters:

object - the object to hash.

Returns:

the hash code.

semanticError

protected void semanticError(java.lang.String message)
                      throws SemanticError

Reports a semantic error during model construction.

Parameters:

message - the error message.

Throws:

SemanticError - always.