/// <summary>
/// Adds definition of matching of target and source records using primary key columns.
/// </summary>
/// <typeparam name="TTarget">Target record type.</typeparam>
/// <param name="merge">Merge command builder.</param>
/// <returns>Returns merge command builder with source, target and match (ON) set.</returns>
public static IMergeable <TTarget, TTarget> OnTargetKey <TTarget>(this IMergeableOn <TTarget, TTarget> merge)
where TTarget : class
{
if (merge == null)
{
throw new ArgumentNullException(nameof(merge));
}
return((MergeDefinition <TTarget, TTarget>)merge);
}
/// <summary>
/// Adds definition of matching of target and source records using match condition.
/// </summary>
/// <typeparam name="TTarget">Target record type.</typeparam>
/// <typeparam name="TSource">Source record type.</typeparam>
/// <param name="merge">Merge command builder.</param>
/// <param name="matchCondition">Rule to match/join target and source records.</param>
/// <returns>Returns merge command builder with source, target and match (ON) set.</returns>
public static IMergeable <TTarget, TSource> On <TTarget, TSource>(
this IMergeableOn <TTarget, TSource> merge,
Expression <Func <TTarget, TSource, bool> > matchCondition)
where TTarget : class
where TSource : class
{
if (merge == null)
{
throw new ArgumentNullException(nameof(merge));
}
if (matchCondition == null)
{
throw new ArgumentNullException(nameof(matchCondition));
}
return(((MergeDefinition <TTarget, TSource>)merge).AddOnPredicate(matchCondition));
}
/// <summary>
/// Adds definition of matching of target and source records using key value.
/// </summary>
/// <typeparam name="TTarget">Target record type.</typeparam>
/// <typeparam name="TSource">Source record type.</typeparam>
/// <typeparam name="TKey">Source and target records join/match key type.</typeparam>
/// <param name="merge">Merge command builder.</param>
/// <param name="targetKey">Target record match key definition.</param>
/// <param name="sourceKey">Source record match key definition.</param>
/// <returns>Returns merge command builder with source, target and match (ON) set.</returns>
public static IMergeable <TTarget, TSource> On <TTarget, TSource, TKey>(
this IMergeableOn <TTarget, TSource> merge,
Expression <Func <TTarget, TKey> > targetKey,
Expression <Func <TSource, TKey> > sourceKey)
where TTarget : class
where TSource : class
{
if (merge == null)
{
throw new ArgumentNullException(nameof(merge));
}
if (targetKey == null)
{
throw new ArgumentNullException(nameof(targetKey));
}
if (sourceKey == null)
{
throw new ArgumentNullException(nameof(sourceKey));
}
return(((MergeDefinition <TTarget, TSource>)merge).AddOnKey(targetKey, sourceKey));
}
