internal override bool IsSamePartition(PartitionInfo p)
{
HashPartition <TKey> p1 = p as HashPartition <TKey>;
if (p1 == null || this.Count != p1.Count)
{
return(false);
}
// Check the comparers:
return(this.m_comparer.Equals(p1.m_comparer));
}
internal override bool IsSamePartition(PartitionInfo p)
{
RangePartition <TKey> p1 = p as RangePartition <TKey>;
if (p1 == null)
{
return(false);
}
// Check the keys:
if (this.Keys == null ||
p1.Keys == null ||
this.Keys.Length != p1.Keys.Length)
{
return(false);
}
IComparer <TKey> comp1 = TypeSystem.GetComparer <TKey>(p1.m_comparer);
if (comp1 == null)
{
return(false);
}
if (this.IsDescending != p1.IsDescending)
{
comp1 = new MinusComparer <TKey>(comp1);
}
for (int i = 0; i < this.Keys.Length; i++)
{
if (this.m_comparer.Compare(this.Keys[i], p1.Keys[i]) != 0)
{
return(false);
}
}
// Check the comparers:
return(this.m_comparer.Equals(p1.m_comparer));
}
internal virtual bool IsSameMonotoncity(PartitionInfo pinfo)
{
return(false);
}
internal DataSetInfo(DataSetInfo info)
{
this.partitionInfo = info.partitionInfo;
this.orderByInfo = info.orderByInfo;
this.distinctInfo = info.distinctInfo;
}
internal override PartitionInfo Create(LambdaExpression keySel)
{
Type keyType = keySel.Body.Type;
return(PartitionInfo.CreateHash(keySel, this.Count, this.m_comparer, keyType));
}
internal DataSetInfo(PartitionInfo pinfo, OrderByInfo oinfo, DistinctInfo dinfo)
{
this.partitionInfo = pinfo;
this.orderByInfo = oinfo;
this.distinctInfo = dinfo;
}
internal DataSetInfo()
{
this.partitionInfo = OnePartition;
this.orderByInfo = NoOrderBy;
this.distinctInfo = NoDistinct;
}
internal override PartitionInfo Create(LambdaExpression keySel)
{
Type keyType = keySel.Body.Type;
return(PartitionInfo.CreateRange(keySel, this.Keys, this.m_comparer, this.m_isDescending, this.Count, keyType));
}
internal override bool IsSamePartition(PartitionInfo p)
{
return(false);
}
internal abstract bool IsSamePartition(PartitionInfo p);
internal virtual PartitionInfo Concat(PartitionInfo p)
{
return(new RandomPartition(this.Count + p.Count));
}
