/// <summary>
/// <inheritDoc/>
///
/// </summary>
/// <exception cref="System.IO.IOException"/>
public virtual bool Next(K key, V value)
{
if (jc.Flush(ivalue))
{
WritableUtils.CloneInto(key, jc.Key());
WritableUtils.CloneInto(value, Emit(ivalue));
return(true);
}
jc.Clear();
K iterkey = CreateKey();
PriorityQueue <ComposableRecordReader <K, object> > q = GetRecordReaderQueue();
while (!q.IsEmpty())
{
FillJoinCollector(iterkey);
jc.Reset(iterkey);
if (jc.Flush(ivalue))
{
WritableUtils.CloneInto(key, jc.Key());
WritableUtils.CloneInto(value, Emit(ivalue));
return(true);
}
jc.Clear();
}
return(false);
}
/// <exception cref="System.IO.IOException"/>
public virtual bool Next(V val)
{
bool ret;
if (ret = this._enclosing.jc.Flush(this._enclosing.ivalue))
{
WritableUtils.CloneInto(val, this._enclosing.Emit(this._enclosing.ivalue));
}
return(ret);
}
/// <summary>
/// Write key-value pair at the head of this stream to the objects provided;
/// get next key-value pair from proxied RR.
/// </summary>
/// <exception cref="System.IO.IOException"/>
public virtual bool Next(K key, U value)
{
if (HasNext())
{
WritableUtils.CloneInto(key, khead);
WritableUtils.CloneInto(value, vhead);
Next();
return(true);
}
return(false);
}
/// <summary>Clone the key at the head of this RR into the object supplied.</summary>
/// <exception cref="System.IO.IOException"/>
public virtual void Key(K qkey)
{
WritableUtils.CloneInto(qkey, khead);
}
/// <exception cref="System.IO.IOException"/>
public virtual bool Replay(V val)
{
WritableUtils.CloneInto(val, this._enclosing.Emit(this._enclosing.ivalue));
return(true);
}
/// <summary>Clone the key at the top of this RR into the given object.</summary>
/// <exception cref="System.IO.IOException"/>
public virtual void Key(K key)
{
WritableUtils.CloneInto(key, Key());
}
