private synchronized NamespaceImpl create(String namespace) throws SQLException {
if (byNamespace.containsKey(namespace)) return byNamespace.get(namespace);
table.insert(null, namespace);
NamespaceImpl ns = new NamespaceImpl(null, namespace);
byNamespace.put(ns.getName(), ns);
return ns;
}
public void clearPrefixes() throws RdbmsException {
try {
table.clearPrefixes();
load();
} catch (SQLException e) {
throw new RdbmsException(e);
}
}
public void setPrefix(String prefix, String name) throws RdbmsException {
NamespaceImpl ns = findNamespace(name);
try {
table.updatePrefix(prefix, name);
} catch (SQLException e) {
throw new RdbmsException(e);
}
ns.setPrefix(prefix);
byPrefix.put(prefix, ns);
}
public void removePrefix(String prefix) throws RdbmsException {
NamespaceImpl ns = findByPrefix(prefix);
if (ns == null) return;
try {
table.updatePrefix(prefix, ns.getName());
} catch (SQLException e) {
throw new RdbmsException(e);
}
ns.setPrefix(null);
byPrefix.remove(prefix);
}
private void load() throws SQLException {
Map<String, NamespaceImpl> map = new HashMap<String, NamespaceImpl>();
Map<String, NamespaceImpl> prefixes = new HashMap<String, NamespaceImpl>();
for (Object[] row : table.selectAll()) {
String prefix = (String) row[0];
String namespace = (String) row[1];
if (namespace == null) continue;
NamespaceImpl ns = new NamespaceImpl(prefix, namespace);
map.put(namespace, ns);
if (prefix != null) {
prefixes.put(prefix, ns);
}
}
byNamespace.putAll(map);
byPrefix.clear();
byPrefix.putAll(prefixes);
}