@Override
public void visit(Block obj) {
preVisitVisitor(obj);
visitNodes(obj.getStatements());
visitNodes(obj.getExceptionStatements());
postVisitVisitor(obj);
}
public void resolveBlock(
CreateProcedureCommand command,
Block block,
GroupContext originalExternalGroups,
TempMetadataAdapter original)
throws QueryResolverException, QueryMetadataException, TeiidComponentException {
LogManager.logTrace(
org.teiid.logging.LogConstants.CTX_QUERY_RESOLVER,
new Object[] {"Resolving block", block}); // $NON-NLS-1$
// create a new variable and metadata context for this block so that discovered metadata is not
// visible else where
TempMetadataStore store = original.getMetadataStore().clone();
TempMetadataAdapter metadata = new TempMetadataAdapter(original.getMetadata(), store);
GroupContext externalGroups = new GroupContext(originalExternalGroups, null);
// create a new variables group for this block
GroupSymbol variables =
ProcedureContainerResolver.addScalarGroup(
ProcedureReservedWords.VARIABLES, store, externalGroups, new LinkedList<Expression>());
for (Statement statement : block.getStatements()) {
resolveStatement(command, statement, externalGroups, variables, metadata);
}
if (block.getExceptionGroup() != null) {
// create a new variable and metadata context for this block so that discovered metadata is
// not visible else where
store = original.getMetadataStore().clone();
metadata = new TempMetadataAdapter(original.getMetadata(), store);
externalGroups = new GroupContext(originalExternalGroups, null);
// create a new variables group for this block
variables =
ProcedureContainerResolver.addScalarGroup(
ProcedureReservedWords.VARIABLES,
store,
externalGroups,
new LinkedList<Expression>());
isValidGroup(metadata, block.getExceptionGroup());
if (block.getExceptionStatements() != null) {
ProcedureContainerResolver.addScalarGroup(
block.getExceptionGroup(), store, externalGroups, exceptionGroup, false);
for (Statement statement : block.getExceptionStatements()) {
resolveStatement(command, statement, externalGroups, variables, metadata);
}
}
}
}