/**
* Given an object in the replacement, return the corresponding object in the pattern if any, or
* null otherwise.
*
* @param replacementObject The object in the replacement.
* @return The object in the pattern, or null if not found.
*/
public static NamedObj getCorrespondingPatternObject(NamedObj replacementObject) {
if (replacementObject instanceof Replacement) {
return ((TransformationRule) replacementObject.getContainer()).getPattern();
}
PatternObjectAttribute attribute;
try {
attribute = getPatternObjectAttribute(replacementObject, false);
} catch (KernelException e) {
attribute = null;
}
if (attribute == null) {
return null;
}
CompositeActorMatcher container = getContainingPatternOrReplacement(replacementObject);
if (container == null) {
return null;
}
String patternObjectName = attribute.getExpression();
if (patternObjectName.equals("")) {
return null;
}
TransformationRule transformer = (TransformationRule) container.getContainer();
Pattern pattern = transformer.getPattern();
if (replacementObject instanceof Attribute) {
return pattern.getAttribute(patternObjectName);
} else if (replacementObject instanceof Entity) {
return pattern.getEntity(patternObjectName);
} else if (replacementObject instanceof Relation) {
return pattern.getRelation(patternObjectName);
} else {
return null;
}
}
