import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
+import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
private static final int TYPE_INFO_METADATA_TYPE_NAME = 1;
private static final int TYPE_INFO_METADATA_DATA_TYPE = 2;
+ private static final int TYPE_INFO_METADATA_PRECISION = 3;
+ private static final int TYPE_INFO_METADATA_LITERAL_PREFIX = 4;
+ private static final int TYPE_INFO_METADATA_LITERAL_SUFFIX = 5;
+ private static final int TYPE_INFO_METADATA_CREATE_PARMS = 6;
private DatabaseAdapter databaseAdapter;
private Bookmark bookmark;
+ private List entityTypes;
+
public Database(Bookmark bookmark) {
this.bookmark = bookmark;
this.databaseAdapter = bookmark.getAdapter();
}
}
- public String[] getEntityTypes()
+ public synchronized String[] getEntityTypes()
throws NotConnectedException, SQLException {
- return getEntityTypes(this.bookmark.getConnection());
+ if (this.entityTypes == null) {
+ Collection collection = initializeEntityTypes(this.bookmark.getConnection());
+ this.entityTypes = Collections.synchronizedList(new ArrayList(collection));
+ }
+ return (String[]) this.entityTypes.toArray(new String[this.entityTypes.size()]);
}
public String getUsername() throws NotConnectedException, SQLException {
/**
- * <p>This method returns a list of entity types supported by the database
+ * <p>This method returns a set of entity types supported by the database
* adapter. This list will always be limited to Tables, Views and
* Sequences.</p>
*
* Tables, Views and Sequences.</p>
*
* @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) {
set.add(type);
}
}
-
- return (String[]) set.toArray(new String[set.size()]);
+ return set;
}
public String getInformation() throws SQLException {
protected List getEntitiesList(Bookmark bookmark, Connection connection, String type, Schema schema)
throws SQLException {
- String sql = getSQL(bookmark, type, schema);
List list = new ArrayList();
- SQLResultSetResults results = null;
- 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();
- 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;
}
}
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;
}
ResultSet results = metaData.getTypeInfo();
try {
while (results.next()) {
- String name = results.getString(TYPE_INFO_METADATA_TYPE_NAME);
- int type = results.getInt(TYPE_INFO_METADATA_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();
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()]);
}
}
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