private void initialize(String schema) {
hbTable = new Table(schema, TABLE_NAME);
hbId = new Column("id", Types.BIGINT, true); // true => isNotNull
hbSeqno = new Column("seqno", Types.BIGINT);
hbEventId = new Column("eventid", Types.VARCHAR, 128);
hbSourceTstamp = new Column("source_tstamp", Types.TIMESTAMP);
hbTargetTstamp = new Column("target_tstamp", Types.TIMESTAMP);
hbLagMillis = new Column("lag_millis", Types.BIGINT);
hbSalt = new Column("salt", Types.BIGINT);
hbName = new Column("name", Types.VARCHAR, 128);
Key hbKey = new Key(Key.Primary);
hbKey.AddColumn(hbId);
hbTable.AddColumn(hbId);
hbTable.AddColumn(hbSeqno);
hbTable.AddColumn(hbEventId);
hbTable.AddColumn(hbSourceTstamp);
hbTable.AddColumn(hbTargetTstamp);
hbTable.AddColumn(hbLagMillis);
hbTable.AddColumn(hbSalt);
hbTable.AddColumn(hbName);
hbTable.AddKey(hbKey);
sourceTsQuery = "SELECT source_tstamp from " + schema + "." + TABLE_NAME + " where id=" + KEY;
}
private void initializeStage(String schema) {
hbStageTable = new Table(schema, STAGE_TABLE_NAME);
hbTOpcode = new Column("tungsten_opcode", Types.VARCHAR, 2);
hbTSeqno = new Column("tungsten_seqno", Types.BIGINT, true);
hbTRowId = new Column("tungsten_row_id", Types.BIGINT, true);
hbTCommitTstamp = new Column("tungsten_commit_timestamp", Types.TIMESTAMP);
Key hbKey = new Key(Key.Primary);
hbKey.AddColumn(hbTOpcode);
hbKey.AddColumn(hbTSeqno);
hbKey.AddColumn(hbTRowId);
hbStageTable.AddColumn(hbTOpcode);
hbStageTable.AddColumn(hbTSeqno);
hbStageTable.AddColumn(hbTRowId);
hbStageTable.AddColumn(hbTCommitTstamp);
hbStageTable.AddColumn(hbId);
hbStageTable.AddColumn(hbSeqno);
hbStageTable.AddColumn(hbEventId);
hbStageTable.AddColumn(hbSourceTstamp);
hbStageTable.AddColumn(hbTargetTstamp);
hbStageTable.AddColumn(hbLagMillis);
hbStageTable.AddColumn(hbSalt);
hbStageTable.AddColumn(hbName);
hbStageTable.AddKey(hbKey);
}
private void generateChunkingPreparedStatement(Table table, long blockSize) throws SQLException {
String fqnTable =
connection.getDatabaseObjectName(table.getSchema())
+ '.'
+ connection.getDatabaseObjectName(table.getName());
StringBuffer sqlBuffer = new StringBuffer("SELECT ");
StringBuffer colBuf = new StringBuffer();
whereClause = new String();
if (table.getPrimaryKey() != null) {
// TODO
// No dedicated chunking algorithm for this type of pk (either
// composite or datatype not handled)
} else {
if (logger.isDebugEnabled()) logger.debug("Handling table " + table.toExtendedString());
// This is a unique key that can be used
Key key = table.getPKFromUniqueIndex();
if (key == null) {
logger.info("getPKFromUniqueIndex returned null key");
}
ArrayList<Column> colsList = key.getColumns();
if (logger.isDebugEnabled()) logger.debug("colsList = " + colsList);
Column[] columns = new Column[colsList.size()];
int i = 0;
for (Column column : colsList) {
columns[i] = column;
i++;
}
whereClause = buildWhereClause(columns, 0);
for (int j = 0; j < columns.length; j++) {
if (j > 0) {
colBuf.append(", ");
}
colBuf.append(columns[j].getName());
}
sqlBuffer.append(colBuf);
}
sqlBuffer.append(" FROM ");
sqlBuffer.append(fqnTable);
if (eventId != null) {
sqlBuffer.append(" AS OF SCN ");
sqlBuffer.append(eventId);
}
sqlBuffer.append(" ORDER BY ");
sqlBuffer.append(colBuf);
String sql = sqlBuffer.toString();
if (logger.isDebugEnabled()) logger.debug("Generated statement :" + sql);
pStmt = connection.prepareStatement(sql);
// TODO : have a setting ?
pStmt.setFetchSize(100);
}
