/* Copyright (c) 2001-2010, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
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* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
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* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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package org.hsqldb.server;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.hsqldb.Session;
import org.hsqldb.result.Result;
import org.hsqldb.result.ResultConstants;
import org.hsqldb.result.ResultProperties;
class OdbcPreparedStatement {
public String handle, query;
public Result ackResult;
public Session session;
private Map containingMap;
private List portals = new ArrayList();
protected OdbcPreparedStatement(OdbcPreparedStatement other) {
this.handle = other.handle;
this.ackResult = other.ackResult;
}
/**
* Instantiates an proxy OdbcPreparedStatement object for the
* Connection Session, and adds the new instance to the specified map.
*/
public OdbcPreparedStatement(String handle, String query,
Map containingMap,
Session session)
throws RecoverableOdbcFailure {
this.handle = handle;
this.query = query;
this.containingMap = containingMap;
this.session = session;
Result psResult = Result.newPrepareStatementRequest();
psResult.setPrepareOrExecuteProperties(
query, 0, 0, 0, 0,ResultProperties.defaultPropsValue,
Statement.NO_GENERATED_KEYS, null, null);
ackResult = session.execute(psResult);
switch (ackResult.getType()) {
case ResultConstants.PREPARE_ACK :
break;
case ResultConstants.ERROR :
throw new RecoverableOdbcFailure(ackResult);
default :
throw new RecoverableOdbcFailure(
"Output Result from Statement prep is of "
+ "unexpected type: " + ackResult.getType());
}
containingMap.put(handle, this);
}
/**
* Releases resources for this instance and all associated StatementPortals,
* and removes this instance from the containing map.
*/
public void close() {
// TODO: Free up resources!
containingMap.remove(handle);
while (portals.size() > 0) {
((StatementPortal) portals.remove(1)).close();
}
}
/**
* Associates an StatementPortal withwith OdbcPreparedStatement.
*/
public void addPortal(StatementPortal portal) {
portals.add(portal);
}
}