Revision 1128
Added by Jing Tao almost 22 years ago
| PostgresqlAdapter.java | ||
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package edu.ucsb.nceas.dbadapter; |
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import java.sql.*; |
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import edu.ucsb.nceas.metacat.*; |
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/** |
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* The PostgreSQL db adapter implementation. |
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* during the db operation |
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* @return return the generated unique id as a long type |
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*/ |
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public long getUniqueID(Connection conn, String tableName)
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public long getUniqueID(String tableName) |
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throws SQLException {
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long uniqueid = 0; |
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Statement stmt = conn.createStatement(); |
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stmt.execute("SELECT currval('" + tableName + "_id_seq')");
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ResultSet rs = stmt.getResultSet(); |
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if ( rs.next() ) |
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{
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uniqueid = rs.getLong(1); |
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} |
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stmt.close(); |
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//System.out.println("Unique ID: " + uniqueid);
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DBConnection conn = null; |
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int serialNumber = -1; |
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Statement stmt = null; |
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try |
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{
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//check out DBConnection |
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conn=DBConnectionPool.getDBConnection("PostgresqlAdapter.getUniqueID");
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serialNumber=conn.getCheckOutSerialNumber(); |
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stmt = conn.createStatement(); |
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stmt.execute("SELECT currval('" + tableName + "_id_seq')");
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ResultSet rs = stmt.getResultSet(); |
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if ( rs.next() ) |
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{
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uniqueid = rs.getLong(1); |
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} |
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stmt.close(); |
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}//try |
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finally |
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{
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DBConnectionPool.returnDBConnection(conn, serialNumber); |
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}//finally |
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//System.out.println("Unique ID: " + uniqueid);
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return uniqueid; |
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} |
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Also available in: Unified diff
Using getDBConnection rather than pass connection as a parameter.