This method returns a list of entity types supported by the database + *
This method returns a set of entity types supported by the database * adapter. This list will always be limited to Tables, Views and * Sequences.
* @@ -63,10 +92,10 @@ public class Database { * Tables, Views and Sequences. * * @param connection - * @return + * @return a set of Strings, typically "TABLE", "VIEW", and "SEQUENCE" * @throws SQLException */ - public String[] getEntityTypes(Connection connection) throws SQLException { + private Set initializeEntityTypes(Connection connection) throws SQLException { Set set = new HashSet(); if (this.databaseAdapter.getShowTableQuery(this.bookmark.getUsername()) != null) { @@ -80,7 +109,7 @@ public class Database { DatabaseMetaData metaData = connection.getMetaData(); ResultSet resultSet = metaData.getTableTypes(); while (resultSet.next()) { - String type = resultSet.getString("TABLE_TYPE"); + String type = resultSet.getString(TABLE_TYPE_METADATA_TABLE_TYPE); if (type != null) { // Informix, in particular, pads this with extra spaces type = type.trim(); @@ -89,8 +118,7 @@ public class Database { set.add(type); } } - - return (String[]) set.toArray(new String[set.size()]); + return set; } public String getInformation() throws SQLException { @@ -147,41 +175,21 @@ public class Database { protected List getEntitiesList(Bookmark bookmark, Connection connection, String type, Schema schema) throws SQLException { - String sql = getSQL(bookmark, type, schema); List list = new ArrayList(); - SQLResults results = null; - if (sql != null) { - results = MultiSQLServer.getInstance().execute(connection, sql); - for (int i = 1, size = (results == null) ? 0 : results.getRowCount(); i <= size; i++) { - String schemaName = results.getColumnCount() == 1 - ? schema.getName() : results.getElement(1, i).toString(); - String tableName = results.getColumnCount() == 1 - ? results.getElement(1, i).toString() - : results.getElement(2, i).toString(); - if (tableName != null && tableName.length() > 0) { - Entity entity = EntityFactory.getInstance().create( - bookmark, schemaName, tableName, type); - if (entity != null) { - list.add(entity); - } - } - } - } - // If we have some results, we go back - if (results != null) return list; - // Else, we try the JDBC driver + // We try first the JDBC driver DatabaseMetaData metaData = connection.getMetaData(); // getTables needs a null schema to get all the schemas. So we don't pass a "" schema, but a null one ResultSet set = null; - if (metaData.supportsSchemasInTableDefinitions()) + if (metaData.supportsSchemasInTableDefinitions()) { set = metaData.getTables(null, (schema != null) ? schema.getName() : null, "%", new String[] { type }); - else + } else { set = metaData.getTables(null, null, "%", new String[] { type }); + } while (set.next()) { - String tempSchema = set.getString("TABLE_SCHEM"); + String tempSchema = set.getString(TABLE_METADATA_TABLE_SCHEM); tempSchema = (tempSchema == null) ? "" : tempSchema.trim(); - String tableName = set.getString("TABLE_NAME"); + String tableName = set.getString(TABLE_METADATA_TABLE_NAME); tableName = (tableName == null) ? "" : tableName.trim(); if (tableName != null && tableName.length() > 0) { @@ -192,6 +200,38 @@ public class Database { } } set.close(); + // If we have some results, then the JDBC driver is working, + // so we return the results and quit + if (list.size() > 0) + return list; + + + // If no results, we check also the sql query to get the list of entities + SQLResultSetResults results = null; + // Get the proper sql query to the appropiate type of entity + String sql = getSQL(bookmark, type, schema); + // If nothing returned, too bad, it seems there is no sql query for that database and entity type + if (sql != null) { + results = (SQLResultSetResults) MultiSQLServer.getInstance().execute( + bookmark, connection, sql, Integer.MAX_VALUE); + for (int i = 1, size = (results == null) ? 0 : results.getRowCount(); i <= size; i++) { + String schemaName = results.getColumnCount() == 1 + ? schema.getName() : results.getElement(1, i).toString(); + if (schemaName != null) { + schemaName = schemaName.trim(); + } + String tableName = results.getColumnCount() == 1 + ? results.getElement(1, i).toString() + : results.getElement(2, i).toString(); + if (tableName != null && tableName.length() > 0) { + Entity entity = EntityFactory.getInstance().create( + bookmark, schemaName, tableName, type); + if (entity != null) { + list.add(entity); + } + } + } + } return list; } @@ -201,9 +241,14 @@ public class Database { ResultSet results = metaData.getTypeInfo(); try { while (results.next()) { - String name = results.getString("TYPE_NAME"); - int type = results.getInt("DATA_TYPE"); - list.add(new DataType(type, name)); + list.add(new DataType( + results.getInt(TYPE_INFO_METADATA_DATA_TYPE), + results.getString(TYPE_INFO_METADATA_TYPE_NAME), + results.getInt(TYPE_INFO_METADATA_PRECISION), + results.getString(TYPE_INFO_METADATA_LITERAL_PREFIX), + results.getString(TYPE_INFO_METADATA_LITERAL_SUFFIX), + results.getString(TYPE_INFO_METADATA_CREATE_PARMS) + )); } } finally { results.close(); @@ -261,23 +306,23 @@ public class Database { int lowestKeySequence = Integer.MAX_VALUE; try { while (resultSet.next()) { - int keySequence = resultSet.getInt("KEY_SEQ"); + int keySequence = resultSet.getInt(FOREIGN_KEY_METADATA_KEY_SEQ); lowestKeySequence = Math.min(lowestKeySequence, keySequence); if (keySequence == lowestKeySequence || foreignKey == null) { foreignKey = new ForeignKeyImpl(); list.add(foreignKey); - foreignKey.setName(resultSet.getString("FK_NAME")); - foreignKey.setDeleteRule(resultSet.getShort("DELETE_RULE")); - foreignKey.setForeignEntitySchema(resultSet.getString("FKTABLE_SCHEM")); - foreignKey.setForeignEntityName(resultSet.getString("FKTABLE_NAME")); - foreignKey.setLocalEntitySchema(resultSet.getString("PKTABLE_SCHEM")); - foreignKey.setLocalEntityName(resultSet.getString("PKTABLE_NAME")); + foreignKey.setName(resultSet.getString(FOREIGN_KEY_METADATA_FK_NAME)); + foreignKey.setDeleteRule(resultSet.getShort(FOREIGN_KEY_METADATA_DELETE_RULE)); + foreignKey.setForeignEntitySchema(resultSet.getString(FOREIGN_KEY_METADATA_FKTABLE_SCHEM)); + foreignKey.setForeignEntityName(resultSet.getString(FOREIGN_KEY_METADATA_FKTABLE_NAME)); + foreignKey.setLocalEntitySchema(resultSet.getString(FOREIGN_KEY_METADATA_PKTABLE_SCHEM)); + foreignKey.setLocalEntityName(resultSet.getString(FOREIGN_KEY_METADATA_PKTABLE_NAME)); } foreignKey.addColumns( - resultSet.getString("PKCOLUMN_NAME"), - resultSet.getString("FKCOLUMN_NAME")); + resultSet.getString(FOREIGN_KEY_METADATA_PKCOLUMN_NAME), + resultSet.getString(FOREIGN_KEY_METADATA_FKCOLUMN_NAME)); } return (ForeignKey[]) list.toArray(new ForeignKey[list.size()]); } finally { @@ -293,15 +338,18 @@ public class Database { public Schema[] getSchemas() throws NotConnectedException, SQLException { DatabaseMetaData metaData = getMetaData(); List list = new ArrayList(); - ResultSet resultSet = metaData.getSchemas(); - try { - while (resultSet.next()) { - String schemaName = resultSet.getString("TABLE_SCHEM"); - list.add(new Schema(schemaName)); + + if (metaData.supportsSchemasInTableDefinitions()) { + ResultSet resultSet = metaData.getSchemas(); + try { + while (resultSet.next()) { + String schemaName = resultSet.getString("TABLE_SCHEM"); + list.add(new Schema(schemaName)); + } + } finally { + resultSet.close(); } - return (Schema[]) list.toArray(new Schema[list.size()]); - } finally { - resultSet.close(); } + return (Schema[]) list.toArray(new Schema[list.size()]); } }