private ResultSet getColumnsResultSet(Table table) throws SQLException {
ResultSet columnRs = null;
if (table.getOwnerSynonymName() != null) {
columnRs =
getMetaData()
.getColumns(getCatalog(), table.getOwnerSynonymName(), table.getSqlName(), null);
} else {
columnRs = getMetaData().getColumns(getCatalog(), getSchema(), table.getSqlName(), null);
}
return columnRs;
}
private List<String> getTablePrimaryKeys(Table table) throws SQLException {
// get the primary keys
List primaryKeys = new LinkedList();
ResultSet primaryKeyRs = null;
if (table.getOwnerSynonymName() != null) {
primaryKeyRs =
getMetaData()
.getPrimaryKeys(getCatalog(), table.getOwnerSynonymName(), table.getSqlName());
} else {
primaryKeyRs = getMetaData().getPrimaryKeys(getCatalog(), getSchema(), table.getSqlName());
}
while (primaryKeyRs.next()) {
String columnName = primaryKeyRs.getString("COLUMN_NAME");
GLogger.trace("primary key:" + columnName);
primaryKeys.add(columnName);
}
primaryKeyRs.close();
return primaryKeys;
}
private void retriveTableColumns(Table table) throws SQLException {
GLogger.trace("-------setColumns(" + table.getSqlName() + ")");
List primaryKeys = getTablePrimaryKeys(table);
table.setPrimaryKeyColumns(primaryKeys);
// get the indices and unique columns
List indices = new LinkedList();
// maps index names to a list of columns in the index
Map uniqueIndices = new HashMap();
// maps column names to the index name.
Map uniqueColumns = new HashMap();
ResultSet indexRs = null;
try {
if (table.getOwnerSynonymName() != null) {
indexRs =
getMetaData()
.getIndexInfo(
getCatalog(), table.getOwnerSynonymName(), table.getSqlName(), false, true);
} else {
indexRs =
getMetaData().getIndexInfo(getCatalog(), getSchema(), table.getSqlName(), false, true);
}
while (indexRs.next()) {
String columnName = indexRs.getString("COLUMN_NAME");
if (columnName != null) {
GLogger.trace("index:" + columnName);
indices.add(columnName);
}
// now look for unique columns
String indexName = indexRs.getString("INDEX_NAME");
boolean nonUnique = indexRs.getBoolean("NON_UNIQUE");
if (!nonUnique && columnName != null && indexName != null) {
List l = (List) uniqueColumns.get(indexName);
if (l == null) {
l = new ArrayList();
uniqueColumns.put(indexName, l);
}
l.add(columnName);
uniqueIndices.put(columnName, indexName);
GLogger.trace("unique:" + columnName + " (" + indexName + ")");
}
}
} catch (Throwable t) {
// Bug #604761 Oracle getIndexInfo() needs major grants
// http://sourceforge.net/tracker/index.php?func=detail&aid=604761&group_id=36044&atid=415990
} finally {
dbHelper.close(indexRs, null);
}
List columns = getTableColumns(table, primaryKeys, indices, uniqueIndices, uniqueColumns);
for (Iterator i = columns.iterator(); i.hasNext(); ) {
Column column = (Column) i.next();
table.addColumn(column);
}
// In case none of the columns were primary keys, issue a warning.
if (primaryKeys.size() == 0) {
GLogger.warn(
"WARNING: The JDBC driver didn't report any primary key columns in "
+ table.getSqlName());
}
}
