/// <summary>
/// Builds a <see langword="string"/> representing the <see cref="Expression"/>.
/// </summary>
/// <param name="builder">A <see cref="System.Text.StringBuilder"/> to add the created <see langword="string"/>.</param>
internal override void BuildString(StringBuilder builder)
{
if (builder == null)
{
throw new ArgumentNullException("builder");
}
const int num = 0;
SerializableExpression expression = Object;
if (expression != null)
{
expression.BuildString(builder);
builder.Append(".");
}
builder.Append(Method.Name);
builder.Append("(");
int num2 = num;
int count = Arguments.Count;
while (num2 < count)
{
if (num2 > num)
{
builder.Append(", ");
}
Arguments[num2].BuildString(builder);
num2++;
}
builder.Append(")");
}
/// <summary>
/// Extension method for <see cref="SerializableExpression"/>.
/// Returns <see cref="Expression"/>.
/// </summary>
/// <param name="exp">Serializable expression to convert</param>
/// <returns>Returns <see cref="Expression"/>.</returns>
public static Expression Deserialize(this SerializableExpression exp)
{
// http://interlinq.codeplex.com/discussions/60896
var fakeHandler = new ClientQueryHandler();
var visitor = new SerializableExpressionConverter(exp, fakeHandler);
return(visitor.Visit(exp));
}
/// <summary>
/// Extension Method for <see cref="IEnumerable"/>.
/// Returns the result of the executed <see cref="SerializableExpression"/>.
/// </summary>
/// <param name="exp">Extended class instance.</param>
/// <param name="linqHandler"><see cref="IQueryHandler"/>.</param>
/// <returns>Returns the result of the executed <see cref="SerializableExpression"/>.</returns>
public static object Convert(this SerializableExpression exp, IQueryHandler linqHandler)
{
return(new SerializableExpressionConverter(exp, linqHandler).Visit());
}
/// <summary>
/// Retrieves data from the server by an <see cref="SerializableExpression">Expression</see> tree.
/// </summary>
/// <remarks>
/// This method's return type depends on the submitted
/// <see cref="SerializableExpression">Expression</see> tree.
/// Here some examples ('T' is the requested type):
/// <list type="list">
/// <listheader>
/// <term>Method</term>
/// <description>Return Type</description>
/// </listheader>
/// <item>
/// <term>Select(...)</term>
/// <description>T[]</description>
/// </item>
/// <item>
/// <term>First(...), Last(...)</term>
/// <description>T</description>
/// </item>
/// <item>
/// <term>Count(...)</term>
/// <description><see langword="int"/></description>
/// </item>
/// <item>
/// <term>Contains(...)</term>
/// <description><see langword="bool"/></description>
/// </item>
/// </list>
/// </remarks>
/// <param name="expression">
/// <see cref="SerializableExpression">Expression</see> tree
/// containing selection and projection.
/// </param>
/// <returns>Returns requested data.</returns>
/// <seealso cref="IQueryRemoteHandler.Retrieve"/>
public object Retrieve(SerializableExpression expression)
{
return InnerHandler.Retrieve(expression);
}
/// <summary>
/// Retrieves data from the server by an <see cref="SerializableExpression">Expression</see> tree.
/// </summary>
/// <remarks>
/// This method's return type depends on the submitted
/// <see cref="SerializableExpression">Expression</see> tree.
/// Here some examples ('T' is the requested type):
/// <list type="list">
/// <listheader>
/// <term>Method</term>
/// <description>Return Type</description>
/// </listheader>
/// <item>
/// <term>Select(...)</term>
/// <description>T[]</description>
/// </item>
/// <item>
/// <term>First(...), Last(...)</term>
/// <description>T</description>
/// </item>
/// <item>
/// <term>Count(...)</term>
/// <description><see langword="int"/></description>
/// </item>
/// <item>
/// <term>Contains(...)</term>
/// <description><see langword="bool"/></description>
/// </item>
/// </list>
/// </remarks>
/// <param name="expression">
/// <see cref="SerializableExpression">Expression</see> tree
/// containing selection and projection.
/// </param>
/// <returns>Returns requested data.</returns>
/// <seealso cref="IQueryRemoteHandler.Retrieve"/>
public object Retrieve(SerializableExpression expression)
{
try
{
return Handler.Retrieve(expression);
}
catch (FaultException ex)
{
Console.WriteLine("Test Failed on server.");
handler = null;
throw new Exception("The execution of the query failed on the server. See inner exception for more details.", ex);
}
catch (Exception)
{
Console.WriteLine("Test Failed.");
handler = null;
throw;
}
}