/// <summary>
/// This constructor is called by the client to create the data source.
/// </summary>
public QueryableNeo4jStatement(IStatementRunner runner, Func <Statement> statement, Func <IRecord, Type, object> mapper)
{
Runner = runner ?? throw new ArgumentNullException(nameof(runner));
Statement = statement ?? throw new ArgumentNullException(nameof(statement));
Mapper = mapper ?? throw new ArgumentNullException(nameof(mapper));
Provider = new CypherQueryProvider(runner, statement, mapper);
Expression = Expression.Constant(this);
}
/// <summary>
/// This constructor is called by Provider.CreateQuery().
/// </summary>
/// <param name="expression"></param>
public QueryableNeo4jStatement(IStatementRunner runner, Func <Statement> statement, Func <IRecord, Type, object> mapper, CypherQueryProvider provider, Expression expression)
: this(runner, statement, mapper)
{
provider = provider ?? throw new ArgumentNullException(nameof(provider));
expression = expression ?? throw new ArgumentNullException(nameof(expression));
if (!typeof(IQueryable <TData>).IsAssignableFrom(expression.Type))
{
throw new ArgumentOutOfRangeException(nameof(expression));
}
Provider = provider;
Expression = expression;
}