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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
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 *    http://www.apache.org/licenses/LICENSE-2.0
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 *  Unless required by applicable law or agreed to in writing,
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package org.apache.cayenne.dba.oracle;

import org.apache.cayenne.dba.JdbcActionBuilder;
import org.apache.cayenne.dba.JdbcAdapter;
import org.apache.cayenne.map.EntityResolver;
import org.apache.cayenne.query.BatchQuery;
import org.apache.cayenne.query.ProcedureQuery;
import org.apache.cayenne.query.SQLAction;
import org.apache.cayenne.query.SQLTemplate;
import org.apache.cayenne.query.SelectQuery;

/**
 * @since 1.2
 * @author Andrus Adamchik
 */
class OracleActionBuilder extends JdbcActionBuilder {

    OracleActionBuilder(JdbcAdapter adapter, EntityResolver resolver) {
        super(adapter, resolver);
    }
    
    public SQLAction sqlAction(SQLTemplate query) {
        return new OracleSQLTemplateAction(query, adapter);
    }

    public SQLAction batchAction(BatchQuery query) {

        // special handling for LOB updates
        if (OracleAdapter.isSupportsOracleLOB() && OracleAdapter.updatesLOBColumns(query)) {
            return new OracleLOBBatchAction(query, getAdapter());
        }
        else {

            // optimistic locking is not supported in batches due to JDBC driver
            // limitations
            boolean useOptimisticLock = query.isUsingOptimisticLocking();
            boolean runningAsBatch = !useOptimisticLock && adapter.supportsBatchUpdates();

            OracleBatchAction action = new OracleBatchAction(
                    query,
                    getAdapter(),
                    getEntityResolver());
            action.setBatch(runningAsBatch);
            return action;
        }

    }

    public SQLAction procedureAction(ProcedureQuery query) {
        return new OracleProcedureAction(query, getAdapter(), getEntityResolver());
    }

    public SQLAction objectSelectAction(SelectQuery query) {
        return new OracleSelectAction(query, getAdapter(), getEntityResolver());
    }
}
