/*
 * Copyright 2008-2009 the original author or authors.
 *
 * Licensed 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 "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.hasor.db.types.handler;
import java.sql.*;

/**
 * Convert <code>String</code> to/from <code>SQLXML</code>.
 * @since 3.5.0
 * @author Iwao AVE!
 */
public class SqlXmlTypeHandler extends AbstractTypeHandler<String> {
    @Override
    public void setNonNullParameter(PreparedStatement ps, int i, String parameter, JDBCType jdbcType) throws SQLException {
        SQLXML sqlxml = ps.getConnection().createSQLXML();
        try {
            sqlxml.setString(parameter);
            ps.setSQLXML(i, sqlxml);
        } finally {
            sqlxml.free();
        }
    }

    @Override
    public String getNullableResult(ResultSet rs, String columnName) throws SQLException {
        return sqlXmlToStream(rs.getSQLXML(columnName));
    }

    @Override
    public String getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
        return sqlXmlToStream(rs.getSQLXML(columnIndex));
    }

    @Override
    public String getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
        return sqlXmlToStream(cs.getSQLXML(columnIndex));
    }

    protected String sqlXmlToStream(SQLXML sqlxml) throws SQLException {
        if (sqlxml == null) {
            return null;
        }
        try {
            return sqlxml.getString();
        } finally {
            sqlxml.free();
        }
    }
}