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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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package org.apache.cayenne.dba.db2;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.apache.cayenne.access.OperationObserver;
import org.apache.cayenne.access.jdbc.ProcedureAction;
import org.apache.cayenne.access.jdbc.RowDescriptor;
import org.apache.cayenne.access.trans.ProcedureTranslator;
import org.apache.cayenne.dba.JdbcAdapter;
import org.apache.cayenne.map.EntityResolver;
import org.apache.cayenne.query.ProcedureQuery;
/**
* @since 3.1
*/
class DB2ProcedureAction extends ProcedureAction {
DB2ProcedureAction(ProcedureQuery query, JdbcAdapter adapter, EntityResolver entityResolver) {
super(query, adapter, entityResolver);
}
@Override
public void performAction(Connection connection, OperationObserver observer) throws SQLException, Exception {
// cloned from super except for result processing consistent with
// CAY-1874
processedResultSets = 0;
ProcedureTranslator transl = createTranslator(connection);
CallableStatement statement = (CallableStatement) transl.createStatement();
try {
initStatement(statement);
boolean hasResultSet = statement.execute();
// read out parameters
readProcedureOutParameters(statement, observer);
// read the rest of the query
while (true) {
if (hasResultSet) {
ResultSet rs = statement.getResultSet();
try {
RowDescriptor descriptor = describeResultSet(rs, processedResultSets++);
readResultSet(rs, descriptor, query, observer);
} finally {
try {
rs.close();
} catch (SQLException ex) {
}
}
} else {
int updateCount = statement.getUpdateCount();
if (updateCount == -1) {
break;
}
adapter.getJdbcEventLogger().logUpdateCount(updateCount);
observer.nextCount(query, updateCount);
}
hasResultSet = statement.getMoreResults();
}
} finally {
try {
statement.close();
} catch (SQLException ex) {
}
}
}
}