/// <summary>
/// Translates the <paramref name="inExpression"/> into a string representation.
/// </summary>
/// <param name="inExpression">The <see cref="DbInExpression"/> to translate.</param>
/// <returns><see cref="string"/></returns>
protected override DbExpression VisitInExpression(DbInExpression inExpression)
{
string body = "{0} IN({1})";
if (inExpression.Expression.ExpressionType == DbExpressionType.Query)
{
body = "{0} IN{1}";
}
string syntax = string.Format(body, Visit(inExpression.Target), Visit(inExpression.Expression));
return(ExpressionFactory.Sql(syntax));
}
/// <summary>
/// Translates the <paramref name="inExpression"/> into a string representation.
/// </summary>
/// <param name="inExpression">The <see cref="DbInExpression"/> to translate.</param>
/// <returns><see cref="DbExpression"/></returns>
protected virtual DbExpression VisitInExpression(DbInExpression inExpression)
{
var expression = Visit(inExpression.Expression);
var targetExpression = Visit(inExpression.Target);
if (!ReferenceEquals(expression, inExpression.Expression) ||
!ReferenceEquals(targetExpression, inExpression.Target))
{
return(ExpressionFactory.In(targetExpression, expression));
}
return(inExpression);
}
/// <summary>
/// Creates a new <see cref="DbInExpression"/>.
/// </summary>
/// <param name="target">The target <see cref="DbExpression"/>.</param>
/// <param name="expression">The <see cref="DbExpression"/> that represents a set of values or a sub query.</param>
/// <returns>A <see cref="DbInExpression"/> instance.</returns>
public DbInExpression In(DbExpression target, DbExpression expression)
{
var inExpression = new DbInExpression(target, expression);
return inExpression;
}
/// <summary>
/// Translates the <paramref name="inExpression"/> into a string representation.
/// </summary>
/// <param name="inExpression">The <see cref="DbInExpression"/> to translate.</param>
/// <returns><see cref="string"/></returns>
protected override DbExpression VisitInExpression(DbInExpression inExpression)
{
string body = "{0} IN({1})";
if (inExpression.Expression.ExpressionType == DbExpressionType.Query || inExpression.Expression.ExpressionType == DbExpressionType.Select)
body = "{0} IN{1}";
string syntax = string.Format(body, Visit(inExpression.Target), Visit(inExpression.Expression));
return ExpressionFactory.Sql(syntax);
}
/// <summary>
/// Translates the <paramref name="inExpression"/> into a string representation.
/// </summary>
/// <param name="inExpression">The <see cref="DbInExpression"/> to translate.</param>
/// <returns><see cref="DbExpression"/></returns>
protected virtual DbExpression VisitInExpression(DbInExpression inExpression)
{
var expression = Visit(inExpression.Expression);
var targetExpression = Visit(inExpression.Target);
if (!ReferenceEquals(expression, inExpression.Expression) ||
!ReferenceEquals(targetExpression, inExpression.Target))
{
return ExpressionFactory.In(targetExpression, expression);
}
return inExpression;
}