public IndexPersistDataContainer(ILocator locator, DataType keyType, DataType recordType, bool compressKeys, bool compressRecords)
{
Locator = locator;
KeyType = keyType;
RecordType = recordType;
CompressKeys = compressKeys;
CompressRecords = compressRecords;
if (compressKeys)
{
keyIndexerPersist = new DataIndexerPersist(keyType);
}
else
{
keyIndexerPersist = new DataIndexerPersistRaw(keyType);
}
if (compressRecords)
{
recordIndexerPersist = new DataIndexerPersist(recordType);
}
else
{
recordIndexerPersist = new DataIndexerPersistRaw(recordType);
}
}
public OrderedSetPersist(IIndexerPersist <IData> keyIndexerPersist, IIndexerPersist <IData> recordIndexerPersist, IOrderedSetFactory orderedSetFactory)
{
this.keyIndexerPersist = keyIndexerPersist;
this.recordIndexerPersist = recordIndexerPersist;
this.orderedSetFactory = orderedSetFactory;
verticalCompression = true;
}
public DataContainerPersist(IIndexerPersist <IData> keyIndexerPersist, IIndexerPersist <IData> recordIndexerPersist, IDataContainerFactory containerFactory)
{
this.keyIndexerPersist = keyIndexerPersist;
this.recordIndexerPersist = recordIndexerPersist;
this.containerFactory = containerFactory;
verticalCompression = true;
}
private Expression GetStorePersistCall(IIndexerPersist persist, int slotIndex, Expression msAccess, ParameterExpression values, ParameterExpression count)
{
var castPersist = Expression.Convert(Expression.Constant(Persists[slotIndex]), Persists[slotIndex].GetType());
var binaryWriter = Expression.New(typeof(BinaryWriter).GetConstructor(new Type[] { typeof(MemoryStream) }), msAccess);
var idx = Expression.Variable(typeof(int), "idx");
var callFunc = Expression.Call(values, values.Type.GetMethod("Invoke"), idx);
var cast = Expression.Convert(callFunc, DataTypeUtils.GetDataType(DataType));
var field = Expression.Field(cast, String.Format("Slot{0}", slotIndex));
var storeMethod = persist.GetType().GetMethod("Store");
var func = Expression.Lambda(field, idx);
var storeCall = Expression.Call(castPersist, storeMethod, new Expression[] { binaryWriter, func, count });
//((IIndexerPersist<Int32>)persist[0]).Store(new BinaryWriter(streams[0]), (idx) => { return ((Data<int, string, double>)values(idx)).Slot0; }, count);
return(storeCall);
}
private Expression GetStoreActionBody(IIndexerPersist persist, int slotIndex, ParameterExpression values, ParameterExpression count, ParameterExpression ms)
{
List <Expression> list = new List <Expression>();
var msAccess = Expression.ArrayAccess(ms, Expression.Constant(slotIndex));
var msConstructor = Expression.New(typeof(MemoryStream).GetConstructor(new Type[] { }));
var msAssign = Expression.Assign(msAccess, msConstructor);
var storeCall = GetStorePersistCall(persist, slotIndex, msAccess, values, count);
list.Add(msAssign);
list.Add(storeCall);
//() =>
//{
// ms[slotIndex] = new MemoryStream();
// ((IIndexerPersist<Int32>)persist[0]).Store(new BinaryWriter(streams[0]), (idx) => { return ((Data<int, string, double>)values(idx)).Slot0; }, count);
//};
var action = Expression.Lambda(Expression.Block(list));
return(action);
}
