/// <summary>
/// Gets the cached primary key property for the entity.
/// </summary>
/// <typeparam name="TEntity">The type of the target entity.</typeparam>
/// <param name="command">The target command.</param>
/// <returns>The cached properties of the entity.</returns>
public static IEnumerable <ClassProperty> Get <TEntity>(Command command = Command.None)
where TEntity : class
{
var key = $"{typeof(TEntity).FullName}.{command.ToString()}";
var properties = (IEnumerable <ClassProperty>)null;
if (m_cache.TryGetValue(key, out properties) == false)
{
properties = ClassExpression.GetProperties <TEntity>(command);
m_cache.TryAdd(key, properties);
}
return(properties);
}
/// <summary>
/// Gets the cached primary key property for the entity.
/// </summary>
/// <typeparam name="TEntity">The type of the target entity.</typeparam>
/// <returns>The cached properties of the entity.</returns>
public static IEnumerable <ClassProperty> Get <TEntity>()
where TEntity : class
{
var key = typeof(TEntity).FullName;
var properties = (IEnumerable <ClassProperty>)null;
if (m_cache.TryGetValue(key, out properties) == false)
{
properties = ClassExpression.GetProperties <TEntity>();
m_cache.TryAdd(key, properties);
}
return(properties);
}
/// <summary>
/// Gets the cached list of <see cref="ClassProperty"/> objects of the data entity.
/// </summary>
/// <typeparam name="TEntity">The type of the target entity.</typeparam>
/// <returns>The cached list <see cref="ClassProperty"/> objects.</returns>
public static IEnumerable <ClassProperty> Get <TEntity>()
where TEntity : class
{
var type = typeof(TEntity);
var properties = (IEnumerable <ClassProperty>)null;
var key = type.FullName.GetHashCode();
// Try get the value
if (type.GetTypeInfo().IsGenericType == false && m_cache.TryGetValue(key, out properties) == false)
{
properties = ClassExpression.GetProperties <TEntity>();
m_cache.TryAdd(key, properties);
}
// Return the value
return(properties);
}
/// <summary>
/// Populates the values of the array of the current values of the current row.
/// </summary>
/// <param name="values">The array variable on which to populate the data.</param>
/// <returns></returns>
public override int GetValues(object[] values)
{
ThrowExceptionIfNotAvailable();
if (values == null)
{
throw new NullReferenceException("The values array must not be null.");
}
if (values.Length != FieldCount)
{
throw new InvalidOperationException($"The length of the array must be equals to the number of fields of the data entity (it should be {FieldCount}).");
}
var extracted = ClassExpression.GetPropertiesAndValues(Enumerator.Current).ToArray();
for (var i = 0; i < Properties.Count; i++)
{
values[i] = extracted[i].Value;
}
return(FieldCount);
}
/// <summary>
/// Gets the cached list of <see cref="ClassProperty"/> objects of the data entity.
/// </summary>
/// <typeparam name="TEntity">The type of the target entity.</typeparam>
/// <param name="dbSetting">The database setting that is currently in used.</param>
/// <returns>The cached list <see cref="ClassProperty"/> objects.</returns>
public static IEnumerable <ClassProperty> Get <TEntity>(IDbSetting dbSetting)
where TEntity : class
{
var properties = (IEnumerable <ClassProperty>)null;
var key = typeof(TEntity).FullName.GetHashCode();
// Add the DbSetting hashcode
if (dbSetting != null)
{
key += dbSetting.GetHashCode();
}
// Try get the value
if (m_cache.TryGetValue(key, out properties) == false)
{
properties = ClassExpression.GetProperties <TEntity>(dbSetting);
m_cache.TryAdd(key, properties);
}
// Return the value
return(properties);
}
