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https://issues.apache.org/jira/browse/CASSANDRA-5019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13508853#comment-13508853
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Jonathan Ellis edited comment on CASSANDRA-5019 at 12/21/12 12:45 AM:
----------------------------------------------------------------------
A Flyweight pattern is one approach. Something like
{code}
class FlyweightColumns
{
ByteBuffer[] names;
ByteBuffer[] values;
long[] timestamps;
private class FlyweightColumn implements IColumn
{
private final int index;
public ByteBuffer name()
{
return names[index];
}
...
}
}
{code}
was (Author: jbellis):
A Flyweight pattern is one approach. Something like
{code}
class FlyweightColumns
{
ByteBuffer[] names;
ByteBuffer[] values;
long[] timestamps;
private class FlyweightColumn implements IColumn
{
private final int index;
public ByteBuffer name()
{
return names[index];
}
...
}
}
> Still too much object allocation on reads
> -----------------------------------------
>
> Key: CASSANDRA-5019
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5019
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jonathan Ellis
> Fix For: 2.0
>
>
> ArrayBackedSortedColumns was a step in the right direction but it's still
> relatively heavyweight thanks to allocating individual Columns.
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