SortedTreeEngineReaderBaseExtensionMethodsReadSingleValueTKey, TValue Method

Reads a single value from the sorted tree based on the provided timestamp and point ID.

Definition

Namespace: SnapDB.Snap.Services.Reader
Assembly: SnapDB (in SnapDB.dll) Version: 1.0.102.0 -- Release Build+29075351d0e5aa4dea46a5c520805222f672dc2e

C#View Source Request Example

public static TreeStream<TKey, TValue> ReadSingleValue<TKey, TValue>(
	this IDatabaseReader<TKey, TValue> reader,
	ulong timestamp,
	ulong pointId
)
where TKey : new(), TimestampPointIDBase<TKey>
where TValue : new(), SnapTypeBase<TValue>

VBView Source Request Example

<ExtensionAttribute>
Public Shared Function ReadSingleValue(Of TKey As {New, TimestampPointIDBase(Of TKey)}, TValue As {New, SnapTypeBase(Of TValue)}) ( 
	reader As IDatabaseReader(Of TKey, TValue),
	timestamp As ULong,
	pointId As ULong
) As TreeStream(Of TKey, TValue)

C++View Source Request Example

public:
[ExtensionAttribute]
generic<typename TKey, typename TValue>
where TKey : gcnew(), TimestampPointIDBase<TKey>
where TValue : gcnew(), SnapTypeBase<TValue>
static TreeStream<TKey, TValue>^ ReadSingleValue(
	IDatabaseReader<TKey, TValue>^ reader, 
	unsigned long long timestamp, 
	unsigned long long pointId
)

JavaScriptView Source Request Example

JavaScript does not support generic types or methods.

Parameters

reader IDatabaseReaderTKey, TValue: The database reader.
timestamp UInt64: The timestamp for the desired value.
pointId UInt64: The point ID for the desired value.

Type Parameters

TKey: The type of keys in the sorted tree.
TValue: The type of values in the sorted tree.

Return Value

TreeStreamTKey, TValue
A TreeStreamTKey, TValue containing the single value found.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IDatabaseReaderTKey, TValue. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).