litesoft
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package org.litesoft.sequences;
import java.util.*;
import org.litesoft.core.util.*;
public class SequenceBlockChain extends SequenceBlock
{
private SequenceBlock mFirst;
private SequenceBlock mNext;
private SequenceBlockChain( SequenceBlock pFirst, SequenceBlock pNext )
{
mFirst = pFirst;
mNext = pNext;
}
public static SequenceBlock create( SequenceBlock pExisting, SequenceBlock pNew )
{
pExisting = UtilsCommon.deNull( pExisting, SequenceBlockImpl.INITIAL );
pNew = UtilsCommon.deNull( pNew, SequenceBlockImpl.INITIAL );
return !pExisting.hasMore() ? pNew : !pNew.hasMore() ? pExisting : new SequenceBlockChain( pExisting, pNew );
}
public long getCurBlockEndExclusive()
{
return mNext.getCurBlockEndExclusive();
}
public long available()
{
return mFirst.available() + mNext.available();
}
public boolean hasMore()
{
return mFirst.hasMore() || mNext.hasMore();
}
public long next()
throws NoSuchElementException
{
return mFirst.hasMore() ? mFirst.next() : mNext.next();
}
protected Long peekNext()
{
Long aLong = mFirst.peekNext();
return (aLong != null) ? aLong : mNext.peekNext();
}
}
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Revision |
Author |
Commited |
Message |
2
|
GeorgeS
|
Sun 07 Feb, 2010 12:50:58 +0000 |
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