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org.hibernate.cfg.reveng.dialect.JDBCMetaDataDialect Maven / Gradle / Ivy
package org.hibernate.cfg.reveng.dialect;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.hibernate.tool.util.TableNameQualifier;
/**
* MetaData dialect that uses standard JDBC for reading metadata.
*
* @author Max Rydahl Andersen
*
*/
public class JDBCMetaDataDialect extends AbstractMetaDataDialect {
public Iterator> getTables(String xcatalog, String xschema, String xtable) {
try {
final String catalog = caseForSearch( xcatalog );
final String schema = caseForSearch( xschema );
final String table = caseForSearch( xtable );
log.debug("getTables(" + catalog + "." + schema + "." + table + ")");
ResultSet tableRs = getMetaData().getTables(catalog , schema , table, new String[] { "TABLE", "VIEW" });
return new ResultSetIterator(tableRs, getSQLExceptionConverter()) {
Map element = new HashMap();
protected Map convertRow(ResultSet tableResultSet) throws SQLException {
element.clear();
putTablePart( element, tableResultSet );
putTableType(element, tableResultSet);
element.put("REMARKS", tableResultSet.getString("REMARKS"));
return element;
}
protected Throwable handleSQLException(SQLException e) {
// schemaRs and catalogRs are only used for error reporting if
// we get an exception
String databaseStructure = getDatabaseStructure( catalog, schema );
throw getSQLExceptionConverter().convert( e,
"Could not get list of tables from database. Probably a JDBC driver problem. "
+ databaseStructure, null );
}
};
} catch (SQLException e) {
// schemaRs and catalogRs are only used for error reporting if we get an exception
String databaseStructure = getDatabaseStructure(xcatalog,xschema);
throw getSQLExceptionConverter().convert(e, "Could not get list of tables from database. Probably a JDBC driver problem. " + databaseStructure, null);
}
}
public Iterator> getIndexInfo(final String xcatalog, final String xschema, final String xtable) {
try {
final String catalog = caseForSearch( xcatalog );
final String schema = caseForSearch( xschema );
final String table = caseForSearch( xtable );
log.debug("getIndexInfo(" + catalog + "." + schema + "." + table + ")");
ResultSet tableRs = getMetaData().getIndexInfo(catalog , schema , table, false, true);
return new ResultSetIterator(tableRs, getSQLExceptionConverter()) {
Map element = new HashMap();
protected Map convertRow(ResultSet rs) throws SQLException {
element.clear();
putTablePart(element, rs);
element.put("INDEX_NAME", rs.getString("INDEX_NAME"));
element.put("COLUMN_NAME", rs.getString("COLUMN_NAME"));
element.put("NON_UNIQUE", Boolean.valueOf(rs.getBoolean("NON_UNIQUE")));
element.put("TYPE", new Short(rs.getShort("TYPE")));
return element;
}
protected Throwable handleSQLException(SQLException e) {
throw getSQLExceptionConverter().convert(e, "Exception while getting index info for " + TableNameQualifier.qualify(catalog, schema, table), null);
}
};
} catch (SQLException e) {
throw getSQLExceptionConverter().convert(e, "Exception while getting index info for " + TableNameQualifier.qualify(xcatalog, xschema, xtable), null);
}
}
protected void putTablePart(Map element, ResultSet tableRs) throws SQLException {
element.put("TABLE_NAME", tableRs.getString("TABLE_NAME"));
element.put("TABLE_SCHEM", tableRs.getString("TABLE_SCHEM"));
element.put("TABLE_CAT", tableRs.getString("TABLE_CAT"));
}
protected void putTableType(Map element, ResultSet tableRs) throws SQLException {
element.put("TABLE_TYPE", tableRs.getString("TABLE_TYPE"));
}
public Iterator> getColumns(final String xcatalog, final String xschema, final String xtable, String xcolumn) {
try {
final String catalog = caseForSearch( xcatalog );
final String schema = caseForSearch( xschema );
final String table = caseForSearch( xtable );
final String column = caseForSearch( xcolumn );
log.debug("getColumns(" + catalog + "." + schema + "." + table + "." + column + ")");
ResultSet tableRs = getMetaData().getColumns(catalog, schema, table, column);
return new ResultSetIterator(tableRs, getSQLExceptionConverter()) {
Map element = new HashMap();
protected Map convertRow(ResultSet rs) throws SQLException {
element.clear();
putTablePart(element, rs);
element.put("DATA_TYPE", new Integer(rs.getInt("DATA_TYPE")));
element.put("TYPE_NAME", rs.getString("TYPE_NAME"));
element.put("COLUMN_NAME", rs.getString("COLUMN_NAME"));
element.put("NULLABLE", new Integer(rs.getInt("NULLABLE")));
element.put("COLUMN_SIZE", new Integer(rs.getInt("COLUMN_SIZE")));
element.put("DECIMAL_DIGITS", new Integer(rs.getInt("DECIMAL_DIGITS")));
element.put("REMARKS", rs.getString("REMARKS"));
return element;
}
protected Throwable handleSQLException(SQLException e) {
throw getSQLExceptionConverter().convert(e, "Error while reading column meta data for " + TableNameQualifier.qualify(catalog, schema, table), null);
}
};
} catch (SQLException e) {
throw getSQLExceptionConverter().convert(e, "Error while reading column meta data for " + TableNameQualifier.qualify(xcatalog, xschema, xtable), null);
}
}
public Iterator> getPrimaryKeys(final String xcatalog, final String xschema, final String xtable) {
try {
final String catalog = caseForSearch( xcatalog );
final String schema = caseForSearch( xschema );
final String table = caseForSearch( xtable );
log.debug("getPrimaryKeys(" + catalog + "." + schema + "." + table + ")");
ResultSet tableRs = getMetaData().getPrimaryKeys(catalog, schema, table);
return new ResultSetIterator(tableRs, getSQLExceptionConverter()) {
Map element = new HashMap();
protected Map convertRow(ResultSet rs) throws SQLException {
element.clear();
putTablePart(element, rs);
element.put("COLUMN_NAME", rs.getString("COLUMN_NAME"));
element.put("KEY_SEQ", new Short(rs.getShort("KEY_SEQ")));
element.put("PK_NAME", rs.getString("PK_NAME"));
return element;
}
protected Throwable handleSQLException(SQLException e) {
throw getSQLExceptionConverter().convert(e, "Error while reading primary key meta data for " + TableNameQualifier.qualify(catalog, schema, table), null);
}
};
} catch (SQLException e) {
throw getSQLExceptionConverter().convert(e, "Error while reading primary key meta data for " + TableNameQualifier.qualify(xcatalog, xschema, xtable), null);
}
}
public Iterator> getExportedKeys(final String xcatalog, final String xschema, final String xtable) {
try {
final String catalog = caseForSearch( xcatalog );
final String schema = caseForSearch( xschema );
final String table = caseForSearch( xtable );
log.debug("getExportedKeys(" + catalog + "." + schema + "." + table + ")");
ResultSet tableRs = getMetaData().getExportedKeys(catalog, schema, table);
return new ResultSetIterator(tableRs, getSQLExceptionConverter()) {
Map element = new HashMap();
protected Map convertRow(ResultSet rs) throws SQLException {
element.clear();
putExportedKeysPart( element, rs );
return element;
}
protected Throwable handleSQLException(SQLException e) {
throw getSQLExceptionConverter().convert(e, "Error while reading exported keys meta data for " + TableNameQualifier.qualify(catalog, schema, table), null);
}
};
} catch (SQLException e) {
throw getSQLExceptionConverter().convert(e, "Error while reading exported keys meta data for " + TableNameQualifier.qualify(xcatalog, xschema, xtable), null);
}
}
protected void putExportedKeysPart(Map element, ResultSet rs) throws SQLException {
element.put( "PKTABLE_NAME", rs.getString("PKTABLE_NAME"));
element.put( "PKTABLE_SCHEM", rs.getString("PKTABLE_SCHEM"));
element.put( "PKTABLE_CAT", rs.getString("PKTABLE_CAT"));
element.put( "FKTABLE_CAT", rs.getString("FKTABLE_CAT"));
element.put( "FKTABLE_SCHEM",rs.getString("FKTABLE_SCHEM"));
element.put( "FKTABLE_NAME", rs.getString("FKTABLE_NAME"));
element.put( "FKCOLUMN_NAME", rs.getString("FKCOLUMN_NAME"));
element.put( "PKCOLUMN_NAME", rs.getString("PKCOLUMN_NAME"));
element.put( "FK_NAME", rs.getString("FK_NAME"));
element.put( "KEY_SEQ", new Short(rs.getShort("KEY_SEQ")));
}
}
