Hi Berin (& all),
What do you think about the (untested) attachment. I'm wondering if
the increase in code reuse yields too high a performance hit in
comparison to the previous implementation ?
Too slow ?
Cheers,
Marcus
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,,$$$$$$$$$, Marcus Crafter
;$' '$$$$: Computer Systems Engineer
$: $$$$: ManageSoft GmbH
$ o_)$$$: 82-84 Mainzer Landstrasse
;$, _/\ &&:' 60327 Frankfurt Germany
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/*
* Copyright (C) The Apache Software Foundation. All rights reserved.
*
* This software is published under the terms of the Apache Software License
* version 1.1, a copy of which has been included with this distribution in
* the LICENSE.txt file.
*/
package org.apache.avalon.excalibur.collections;
/**
* Trial implementation of VariableSizeBuffer using FixedBuffers objects.
*
* @author <a href="[EMAIL PROTECTED]">Marcus Crafter</a>
* @version CVS $Revision: 1.3 $ $Date: 2002/02/25 19:21:49 $
* @since 4.0
*/
public final class VBuffer implements Buffer
{
protected Buffer m_buffer;
/**
* Initialize the VariableSizeBuffer with the specified number of elements.
* The integer must be a positive integer.
*/
public VBuffer( int size )
{
m_buffer = new FixedSizeBuffer( size );
}
/**
* Initialize the VariableSizeBuffer with the default number of elements.
* It is exactly the same as performing the following:
*
* <pre>
* new VariableSizeBuffer( 32 );
* </pre>
*/
public VBuffer()
{
this( 32 );
}
/**
* Tests to see if the CircularBuffer is empty.
*/
public final boolean isEmpty()
{
return m_buffer.isEmpty();
}
/**
* Returns the number of elements stored in the buffer.
*/
public final int size()
{
return m_buffer.size();
}
/**
* Add an object into the buffer
*/
public final void add( final Object o )
{
try
{
m_buffer.add( o );
}
catch ( BufferOverflowException e )
{
Buffer newbuff = new FixedSizeBuffer( m_buffer.size() * 2 );
while ( !m_buffer.isEmpty() )
{
newbuff.add( m_buffer.remove() );
}
newbuff.add( o );
m_buffer = newbuff;
}
}
/**
* Removes the next object from the buffer
*/
public Object remove()
{
return m_buffer.remove();
}
}
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