private List<RelDataType> toSql(List<RelDataType> types) {
return Lists.transform(
types,
new com.google.common.base.Function<RelDataType, RelDataType>() {
public RelDataType apply(RelDataType input) {
if (input instanceof RelDataTypeFactoryImpl.JavaType
&& ((RelDataTypeFactoryImpl.JavaType) input).getJavaClass() == Object.class) {
return typeFactory.createSqlType(SqlTypeName.ANY);
}
return typeFactory.toSql(input);
}
});
}
/** Returns the path of an object in this schema. */
public List<String> path(String name) {
final List<String> list = new ArrayList<String>();
if (name != null) {
list.add(name);
}
for (OptiqSchema s = this; s != null; s = s.parent) {
if (s.parent != null || !s.name.equals("")) {
// Omit the root schema's name from the path if it's the empty string,
// which it usually is.
list.add(s.name);
}
}
return ImmutableList.copyOf(Lists.reverse(list));
}
private Collection<Function> getFunctionsFrom(List<String> names) {
final List<Function> functions2 = Lists.newArrayList();
final List<? extends List<String>> schemaNameList;
if (names.size() > 1) {
// If name is qualified, ignore path.
schemaNameList = ImmutableList.of(ImmutableList.<String>of());
} else {
OptiqSchema schema = getSchema(defaultSchema);
if (schema == null) {
schemaNameList = ImmutableList.of();
} else {
schemaNameList = schema.getPath();
}
}
for (List<String> schemaNames : schemaNameList) {
OptiqSchema schema = getSchema(Iterables.concat(schemaNames, Util.skipLast(names)));
if (schema != null) {
final String name = Util.last(names);
functions2.addAll(schema.getFunctions(name, true));
}
}
return functions2;
}