public boolean expand(Writer output, Serializable object, RuleOptions options)
throws IOException, RuleException {
boolean expanded = false;
boolean prefixPrinted = false;
boolean atLeastOneChildPrinted = false;
if (object == null) {
if (Debug.isDebug()) {
throw new NullPointerException(); // disclose programming error
// in debug..
} else {
return false;
}
} // end if
if (!(object instanceof DbObject)) {
return false;
} // end if
DbObject dbObject = (DbObject) object;
MetaRelationship metaRelation = getMetaRelation(dbObject);
MetaClass childrenMetaClass = getChildrenMetaClass();
try {
// get metaRelation from its string representation
if (metaRelation == null)
metaRelation = (MetaRelationship) getMetaField(dbObject, sConnector);
boolean state[] = {prefixPrinted, atLeastOneChildPrinted};
if (metaRelation instanceof MetaRelation1) {
MetaRelation1 metaRelation1 = (MetaRelation1) metaRelation;
expanded |=
expandMetaRelation1(output, dbObject, metaRelation1, state, childrenMetaClass, options);
} else if (metaRelation instanceof MetaRelationN) {
expanded |=
expandMetaRelationN(output, dbObject, metaRelation, state, childrenMetaClass, options);
} else if (metaRelation instanceof MetaChoice) {
MetaChoice choice = (MetaChoice) metaRelation;
expanded |= expandMetaChoice(output, dbObject, choice, state, childrenMetaClass, options);
} else {
// TODO: throw 'meta-relationship not supported'
}
super.terminate(output, options);
} catch (DbException ex) {
String msg = ex.getMessage();
throw new RuleException(msg);
} catch (RuntimeException ex) {
String conn = m_connector.getGUIName();
String objectKind = dbObject.getMetaClass().getGUIName();
String msg = InvalidConnectorRuleException.buildMessage(m_ruleName, conn, objectKind);
throw new InvalidConnectorRuleException(msg);
}
return expanded;
}
