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JDBC Driver for the Firebird RDBMS
There is a newer version: 6.0.0-beta-1
 /*
 * Firebird Open Source J2ee connector - jdbc driver
 *
 * Distributable under LGPL license.
 * You may obtain a copy of the License at http://www.gnu.org/copyleft/lgpl.html
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * LGPL License for more details.
 *
 * This file was created by members of the firebird development team.
 * All individual contributions remain the Copyright (C) of those
 * individuals.  Contributors to this file are either listed here or
 * can be obtained from a CVS history command.
 *
 * All rights reserved.
 */

package org.firebirdsql.gds.impl.wire;


import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;


/**
 * Base class for BlobParameterBufferImp and DatabaseParameterBufferImp and perhaps eventualy TransactionParameterBuffer.
 */
public class ParameterBufferBase  implements java.io.Serializable, Xdrable
    {
	// Parameter Buffer Implementation 
	
    public void addArgument(int argumentType, String value)
        {
        getArgumentsList().add(new StringArgument(argumentType, value ));
        }

    public void addArgument(int argumentType, int value)
        {
        getArgumentsList().add(new NumericArgument(argumentType, value));
        }

    public void addArgument(int argumentType)
        {
        getArgumentsList().add(new SingleItem(argumentType));
        }

    public void addArgument(int type, byte[] content)
        {
        getArgumentsList().add(new ByteArrayArgument(type, content));
        }

    public String getArgumentAsString(int type)
        {
        final List argumentsList = getArgumentsList();
        for( int i = 0, n = argumentsList.size(); i>8);
            outputStream.write(value>>16);
            outputStream.write(value>>24);
            }

        int  getType()
            {
            return type;
            }

        public int hashCode()
            {
            return type;
            }

        public boolean equals(Object other)
            {
            if( other == null || other instanceof NumericArgument == false )
                return false;

            final NumericArgument otherNumericArgument = (NumericArgument)other;

            return type  == otherNumericArgument.type &&
                   value == otherNumericArgument.value;
            }

        private final int type;
        private final int value;
        }

	//---------------------------------------------------------------------------
	// ByteArrayArgument
	//---------------------------------------------------------------------------
	private static final class ByteArrayArgument extends Argument
        {
        ByteArrayArgument( int type, byte[] value )
            {
            this.type = type;
            this.value = value;
            }

        void writeTo(XdrOutputStream outputStream) throws IOException
            {
            outputStream.write(type);
            final int valueLength = value.length;
            writeLength(valueLength, outputStream);
            for(int i = 0; i 1");
        }
        
        protected void writeLength(int length, XdrOutputStream outputStream) throws IOException
            {
            outputStream.write(length);
            }

        int  getType()
            {
            return type;
            }

        public int hashCode()
            {
            return type;
            }

        public boolean equals(Object other)
            {
            if( other == null || other instanceof ByteArrayArgument == false )
                return false;

            final ByteArrayArgument otherByteArrayArgument = (ByteArrayArgument)other;

            return type  == otherByteArrayArgument.type &&
                   Arrays.equals(value , otherByteArrayArgument.value);
            }

        private final int type;
        private final byte[] value;
        }

	//---------------------------------------------------------------------------
	// SingleItem
	//---------------------------------------------------------------------------
	private static final class SingleItem extends Argument
        {
        SingleItem( int item )
            {
            this.item = item;
            }

        void writeTo(XdrOutputStream outputStream) throws IOException
            {
            outputStream.write(item);
            }

        int getLength()
            {
            return 1;
            }

        int  getType()
            {
            return item;
            }

        public int hashCode()
            {
            return item;
            }

        public boolean equals(Object other)
            {
            if( other == null || other instanceof SingleItem == false )
                return false;

            final SingleItem otherSingleItem = (SingleItem)other;

            return item  == otherSingleItem.item;
            }

        private final int item;
        }
    }