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JDBC Driver for the Firebird RDBMS
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/*
 * Public Firebird Java API.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 *    1. Redistributions of source code must retain the above copyright notice, 
 *       this list of conditions and the following disclaimer.
 *    2. 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. 
 *    3. The name of the author may not be used to endorse or promote products 
 *       derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.firebirdsql.gds.impl;

import org.firebirdsql.gds.DatabaseParameterBuffer;

/**
 * Extension of the {@link org.firebirdsql.gds.DatabaseParameterBuffer} 
 * interface that allows GDS implementations remove the DPB extension parameters
 * that driver implementation uses for client-side configuration.
 */
public interface DatabaseParameterBufferExtension extends DatabaseParameterBuffer {

    /*
     * Driver-specific DPB params that must be removed before sending them
     * to the server. These params influence only the client side.
     */
    int SOCKET_BUFFER_SIZE              = 129; // ISCConstants.isc_dpb_socket_buffer_size;
    int BLOB_BUFFER_SIZE                = 130; // ISCConstants.isc_dpb_blob_buffer_size;
    int USE_STREAM_BLOBS                = 131; // ISCConstants.isc_dpb_use_stream_blobs;
    int PARANOIA_MODE                   = 132; // ISCConstants.isc_dpb_paranoia_mode;
    int TIMESTAMP_USES_LOCAL_TIMEZONE   = 133; // ISCConstants.isc_dpb_timestamp_uses_local_timezone;
    int USE_STANDARD_UDF                = 134; // ISCConstants.isc_dpb_use_standard_udf;
    int LOCAL_ENCODING                  = 135; // ISCConstants.isc_dpb_local_encoding;
    int MAPPING_PATH                    = 136; // ISCConstants.isc_dpb_mapping_path;
    int NO_RESULT_SET_TRACKING          = 137; // ISCConstants.isc_dpb_no_result_set_tracking;
    int RESULT_SET_HOLDABLE             = 138; // ISCConstants.isc_dpb_result_set_holdable;
    int FILENAME_CHARSET                = 139; // ISCConstants.isc_dpb_filename_charset;
    int OCTETS_AS_BYTES                 = 140; // ISCConstants.isc_dpb_octets_as_bytes;
    
    /**
     * List of the DPB extensions. This array is used to filter the parameters
     * from the DPB before sending it to Firebird. Any new extension code MUST
     * be listed here.
     */
    public int[] EXTENSION_PARAMETERS = new int[] {
        SOCKET_BUFFER_SIZE,
        BLOB_BUFFER_SIZE, 
        USE_STREAM_BLOBS,
        PARANOIA_MODE,
        TIMESTAMP_USES_LOCAL_TIMEZONE,
        USE_STANDARD_UDF,
        LOCAL_ENCODING,
        MAPPING_PATH,
        NO_RESULT_SET_TRACKING,
        RESULT_SET_HOLDABLE,
        FILENAME_CHARSET,
        OCTETS_AS_BYTES
    };
    

    /**
     * Remove extension parameters in the newly created deep copy of this class.
     * 
     * @return a deep copy of this class where all extension parameters are 
     * removed; needed to filter Jaybird extensions that are not understood by
     * Firebird. 
     */
    DatabaseParameterBuffer removeExtensionParams();
}