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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
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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.unit;

import org.apache.cayenne.dba.DbAdapter;
import org.apache.cayenne.map.DataMap;

import java.sql.Connection;
import java.util.Collection;

public class PostgresUnitDbAdapter extends UnitDbAdapter {

    public PostgresUnitDbAdapter(DbAdapter adapter) {
        super(adapter);
    }

    @Override
    public void willDropTables(Connection conn, DataMap map, Collection tablesToDrop) throws Exception {
        // avoid dropping constraints...
    }

    @Override
    public boolean supportsLobs() {
        return true;
    }

    @Override
    public boolean supportsStoredProcedures() {
        return true;
    }

    @Override
    public boolean canMakeObjectsOutOfProcedures() {
        // we are a victim of CAY-148 - column capitalization...
        return false;
    }

    @Override
    public void createdTables(Connection con, DataMap map) throws Exception {
        if (map.getProcedureMap().containsKey("cayenne_tst_select_proc")) {
            executeDDL(con, "postgresql", "create-select-sp.sql");
            executeDDL(con, "postgresql", "create-update-sp.sql");
            executeDDL(con, "postgresql", "create-update-sp2.sql");
            executeDDL(con, "postgresql", "create-out-sp.sql");
        }
    }

    public boolean isLowerCaseNames() {
        return true;
    }

    @Override
    public boolean supportsGeneratedKeysDrop() {
        return true;
    }
}